diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/.gitignore" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/.gitignore"
new file mode 100644
index 0000000..c2065bc
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/.gitignore"	
@@ -0,0 +1,37 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/build.gradle" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/build.gradle"
new file mode 100644
index 0000000..346aec8
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/build.gradle"	
@@ -0,0 +1,33 @@
+plugins {
+	id 'org.springframework.boot' version '2.5.4'
+	id 'io.spring.dependency-management' version '1.0.11.RELEASE'
+	id 'java'
+}
+
+group = 'tobi'
+version = '0.0.1-SNAPSHOT'
+sourceCompatibility = '11'
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter'
+	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation 'javax.inject:javax.inject:1'
+	implementation group: 'org.springframework', name: 'spring-oxm', version: '3.0.4.RELEASE'
+	implementation 'org.springframework.boot:spring-boot-starter-mail'
+	implementation 'org.springframework.boot:spring-boot-starter-jdbc'
+    implementation 'junit:junit:4.13.1'
+	implementation 'junit:junit:4.13.1'
+	compileOnly 'org.projectlombok:lombok'
+	annotationProcessor 'org.projectlombok:lombok'
+	testCompileOnly 'org.projectlombok:lombok'
+	testAnnotationProcessor 'org.projectlombok:lombok'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+test {
+	useJUnitPlatform()
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradle/wrapper/gradle-wrapper.jar" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradle/wrapper/gradle-wrapper.jar"
new file mode 100644
index 0000000..7454180
Binary files /dev/null and "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradle/wrapper/gradle-wrapper.jar" differ
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradle/wrapper/gradle-wrapper.properties" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradle/wrapper/gradle-wrapper.properties"
new file mode 100644
index 0000000..05679dc
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradle/wrapper/gradle-wrapper.properties"	
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradlew" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradlew"
new file mode 100644
index 0000000..744e882
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradlew"	
@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MSYS* | MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradlew.bat" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradlew.bat"
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/gradlew.bat"	
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/settings.gradle" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/settings.gradle"
new file mode 100644
index 0000000..ebf1ef8
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/settings.gradle"	
@@ -0,0 +1 @@
+rootProject.name = 'spring'
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/Application.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/Application.java"
new file mode 100644
index 0000000..3bcbfc7
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/Application.java"	
@@ -0,0 +1,13 @@
+package tobi.spring;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Application.class, args);
+	}
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/aop/NameMatchClassPointcut.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/aop/NameMatchClassPointcut.java"
new file mode 100644
index 0000000..b0dc3fa
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/aop/NameMatchClassPointcut.java"	
@@ -0,0 +1,28 @@
+package tobi.spring.aop;
+
+import org.springframework.aop.ClassFilter;
+import org.springframework.aop.support.NameMatchMethodPointcut;
+import org.springframework.util.PatternMatchUtils;
+
+public class NameMatchClassPointcut extends NameMatchMethodPointcut {
+
+    public void setMappedClassName(String mappedClassName) {
+        this.setClassFilter(new SimpleClassFilter(mappedClassName));
+    }
+
+    static class SimpleClassFilter implements ClassFilter {
+
+        String mappedName;
+        public SimpleClassFilter(String mappedName) {
+            // TODO Auto-generated constructor stub
+            this.mappedName =mappedName;
+        }
+
+        @Override
+        public boolean matches(Class<?> clazz) {
+            // TODO Auto-generated method stub
+            return PatternMatchUtils.simpleMatch(mappedName, clazz.getSimpleName());
+        }
+
+    }
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/aop/TransactionAdvice.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/aop/TransactionAdvice.java"
new file mode 100644
index 0000000..ce152cf
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/aop/TransactionAdvice.java"	
@@ -0,0 +1,33 @@
+package tobi.spring.aop;
+
+import org.aopalliance.intercept.MethodInterceptor;
+import org.aopalliance.intercept.MethodInvocation;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.support.DefaultTransactionDefinition;
+
+public class TransactionAdvice implements MethodInterceptor {
+
+    PlatformTransactionManager transactionManager;
+
+    public void setTransactionManager(PlatformTransactionManager transactionManager) {
+        this.transactionManager = transactionManager;
+    }
+
+    @Override
+    public Object invoke(MethodInvocation invocation) throws Throwable {
+        // TODO Auto-generated method stub
+        TransactionStatus status = transactionManager.getTransaction(new DefaultTransactionDefinition());
+
+        try {
+            Object ret = invocation.proceed();
+            transactionManager.commit(status);
+            return ret;
+
+        } catch(RuntimeException e) {
+            transactionManager.rollback(status);
+            throw e;
+        }
+    }
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/Appcontext.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/Appcontext.java"
new file mode 100644
index 0000000..13fb9d6
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/Appcontext.java"	
@@ -0,0 +1,102 @@
+package tobi.spring.config;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.*;
+import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.jdbc.datasource.DataSourceTransactionManager;
+import org.springframework.jdbc.datasource.SimpleDriverDataSource;
+import org.springframework.mail.MailSender;
+import org.springframework.mail.javamail.JavaMailSenderImpl;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+import tobi.spring.domain.UserDaoJdbc;
+import tobi.spring.mail.DummyMailSender;
+import tobi.spring.service.UserService;
+
+import javax.sql.DataSource;
+import java.sql.Driver;
+
+@ComponentScan( basePackages = {"com.tobi.domain", "com.tobi.service"})
+@EnableTransactionManagement
+@Configuration
+@EnableSqlService
+@PropertySource("/database.properties")
+public class AppContext implements SqlMapConfig{
+
+
+    @Autowired
+    UserDaoJdbc userDao;
+
+
+    @Value("${db.driverClass}") Class<? extends Driver> driverClass;
+    @Value("${db.url}") String url;
+    @Value("${db.username}") String username;
+    @Value("${db.password}") String password;
+
+    @Bean
+    public static PropertySourcesPlaceholderConfigurer placeholderConfigurer() {
+        return new PropertySourcesPlaceholderConfigurer();
+    }
+
+
+    @Bean
+    public DataSource dataSource() {
+
+        SimpleDriverDataSource dataSource = new SimpleDriverDataSource();
+        dataSource.setDriverClass(driverClass);
+        dataSource.setUrl(url);
+        dataSource.setUsername(username);
+        dataSource.setPassword(password);
+
+        return dataSource;
+    }
+
+    @Bean
+    public PlatformTransactionManager transactionManager() {
+        DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();
+        transactionManager.setDataSource(dataSource());
+
+        return transactionManager;
+    }
+
+
+
+    @Configuration
+    @Profile("production")
+    public static class ProductionAppContext {
+
+        @Bean
+        public MailSender mailSender() {
+
+            JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
+            mailSender.setHost("mail.mycompany.com");
+            return mailSender;
+        }
+    }
+
+    @Configuration
+    @Profile("test")
+    public static class TestAppContext {
+
+        @Bean
+        public UserService testUserService() {
+            return new TestUserServiceImpl();
+        }
+
+        @Bean
+        public MailSender mailSender() {
+            return new DummyMailSender();
+        }
+    }
+
+    @Override
+    public Resource getSqlMapResource() {
+        // TODO Auto-generated method stub
+        return new ClassPathResource("sqlmap.xml", UserDaoJdbc.class);
+    }
+
+
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/EnableSqlService.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/EnableSqlService.java"
new file mode 100644
index 0000000..b786dea
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/EnableSqlService.java"	
@@ -0,0 +1,8 @@
+package tobi.spring.config;
+
+import org.springframework.context.annotation.Import;
+
+@Import(value = SqlServiceContext.class)
+public @interface EnableSqlService {
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/SqlMapConfig.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/SqlMapConfig.java"
new file mode 100644
index 0000000..d828548
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/SqlMapConfig.java"	
@@ -0,0 +1,7 @@
+package tobi.spring.config;
+
+import org.springframework.core.io.Resource;
+
+public interface SqlMapConfig {
+    Resource getSqlMapResource();
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/SqlServiceContext.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/SqlServiceContext.java"
new file mode 100644
index 0000000..ec05730
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/config/SqlServiceContext.java"	
@@ -0,0 +1,53 @@
+package tobi.spring.config;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+import org.springframework.oxm.Unmarshaller;
+import org.springframework.oxm.jaxb.Jaxb2Marshaller;
+import tobi.spring.sql.SqlService;
+
+import javax.sql.DataSource;
+
+@Configuration
+public class SqlServiceContext {
+
+    @Autowired
+    SqlMapConfig sqlMapConfig;
+
+    @Bean
+    public SqlService sqlService() {
+        OxmSqlService sqlService = new OxmSqlService();
+        sqlService.setUnmarshaller(unmarshaller());
+        //sqlService.setSqlRegistry(sqlRegistry());
+        sqlService.setSqlMapFile(this.sqlMapConfig.getSqlMapResource());
+        return sqlService;
+    }
+
+//    @Bean
+//    public SqlRegistry sqlRegistry() {
+//        EmbeddedDbSqlRegistry sqlRegistry = new EmbeddedDbSqlRegistry();
+//        sqlRegistry.setDataSource(embeddedDatabase());
+//        return sqlRegistry;
+//    }
+
+
+    @Bean
+    public Unmarshaller unmarshaller() {
+        Jaxb2Marshaller unmarshaller = new Jaxb2Marshaller();
+        unmarshaller.setContextPath("com.tobi.domain.sql.jaxb");
+        return unmarshaller;
+    }
+
+    @Bean
+    public DataSource embeddedDatabase() {
+
+        return new EmbeddedDatabaseBuilder()
+                .setName("embeddedDatabase")
+                .setType(EmbeddedDatabaseType.HSQL)
+                .addScript("classpath:com/tobi/test/sqlRegistrySchema.sql")
+                .build();
+    }
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/Level.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/Level.java"
new file mode 100644
index 0000000..7b9a53f
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/Level.java"	
@@ -0,0 +1,37 @@
+package tobi.spring.domain;
+
+public enum Level {
+    //순서 고려
+    GOLD(3,null),
+    SILVER(2,GOLD),
+    BASIC(1,SILVER);
+
+
+
+    private final int value;
+    private final Level next;
+
+    Level(int value, Level next) {
+        this.value = value;
+        this.next = next;
+    }
+
+    public int intValue(){
+        return value;
+    }
+
+    public Level nextLevel() {
+        return this.next;
+    }
+
+    public static Level valueOf(int value){
+
+        switch (value){
+            case 1: return BASIC;
+            case 2: return SILVER;
+            case 3: return GOLD;
+            default:
+                throw new AssertionError("Unknown value : " + value);
+        }
+    }
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/User.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/User.java"
new file mode 100644
index 0000000..c482f9a
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/User.java"	
@@ -0,0 +1,100 @@
+package tobi.spring.domain;
+
+import lombok.*;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
+@EqualsAndHashCode
+public class User {
+
+    private String id;
+    private String name;
+    private String password;
+
+    Level level;
+    int login;
+    int recommend;
+    private String mail;
+
+    public User(String id, String name, String password, Level level, int login, int recommend, String mail) {
+        this.id = id;
+        this.name = name;
+        this.password = password;
+        this.level = level;
+        this.login = login;
+        this.recommend = recommend;
+        this.mail = mail;
+    }
+
+    //Level의 순서를 userService가 알아야하는 이유는 없다.
+    //또한 User에게 업그레이드 하라고 요청하는 편도 괜찮다.
+    public void upgradeLevel() {
+        Level nextLevel = this.level.nextLevel();
+
+        if(nextLevel == null) {
+            throw new IllegalStateException(this.level + "은 업그레이드가 불가능 합니다.");
+        }
+        else{
+            this.level =nextLevel;
+        }
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public Level getLevel() {
+        return level;
+    }
+
+    public void setLevel(Level level) {
+        this.level = level;
+    }
+
+    public int getLogin() {
+        return login;
+    }
+
+    public void setLogin(int login) {
+        this.login = login;
+    }
+
+    public int getRecommend() {
+        return recommend;
+    }
+
+    public void setRecommend(int recommend) {
+        this.recommend = recommend;
+    }
+
+    public String getMail() {
+        return mail;
+    }
+
+    public void setMail(String mail) {
+        this.mail = mail;
+    }
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/UserDao.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/UserDao.java"
new file mode 100644
index 0000000..35f22c7
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/UserDao.java"	
@@ -0,0 +1,12 @@
+package tobi.spring.domain;
+
+import java.util.List;
+
+public interface UserDao {
+    void add(User user);
+    User get(String id);
+    List<User> getAll();
+    void deleteAll();
+    int getCount();
+    int update(User user);
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/UserDaoJdbc.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/UserDaoJdbc.java"
new file mode 100644
index 0000000..8d4096c
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/domain/UserDaoJdbc.java"	
@@ -0,0 +1,89 @@
+package tobi.spring.domain;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.RowMapper;
+import tobi.spring.exception.DuplicateUserIdException;
+import tobi.spring.sql.SqlService;
+
+import javax.sql.DataSource;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.List;
+
+public class UserDaoJdbc implements UserDao {
+
+    private JdbcTemplate jdbcTemplate;
+
+    public UserDaoJdbc() {
+        // TODO Auto-generated constructor stub
+    }
+
+    @Autowired
+    private SqlService sqlService;
+
+    @Autowired
+    public void setDataSource(DataSource dataSource) {
+
+        this.jdbcTemplate = new JdbcTemplate(dataSource);
+    }
+
+    private RowMapper<User> userMapper= new RowMapper<User>() {
+
+        @Override
+        public User mapRow(ResultSet rs, int arg1) throws SQLException {
+            // TODO Auto-generated method stub
+            User user = new User();
+            user.setId(rs.getString("id"));
+            user.setName(rs.getString("name"));
+            user.setPassword(rs.getString("password"));
+            user.setLevel(Level.valueOf(rs.getInt("level")));
+            user.setLogin(rs.getInt("login"));
+            user.setRecommend(rs.getInt("recommend"));
+            user.setMail(rs.getString("email"));
+
+            return user;
+        }
+    };
+
+    @Override
+    public void add( final User user) {
+
+        this.jdbcTemplate.update(this.sqlService.getSql("userAdd"),
+                user.getId(), user.getName(), user.getPassword(), user.getLevel().intValue(), user.getLogin(), user.getRecommend(), user.getMail());
+
+    }
+
+    @Override
+    public User get(String id) {
+
+        return this.jdbcTemplate.queryForObject( this.sqlService.getSql("userGet"), new Object[] {id}, this.userMapper);
+    }
+
+    @Override
+    public void deleteAll() {
+        this.jdbcTemplate.update(this.sqlService.getSql("userDeleteAll"));
+    }
+
+    @Override
+    public int getCount() {
+
+        return this.jdbcTemplate.queryForInt( this.sqlService.getSql("userGetCount"));
+
+    }
+
+    @Override
+    public List<User> getAll(){
+
+        return this.jdbcTemplate.query(this.sqlService.getSql("userGetAll"), this.userMapper);
+    }
+
+    @Override
+    public int update(User user) {
+        // TODO Auto-generated method stub
+        return this.jdbcTemplate.update(this.sqlService.getSql("userUpdate")
+                , user.getName(), user.getPassword(), user.getLevel().intValue(), user.getLogin(), user.getRecommend(), user.getMail(), user.getId());
+    }
+
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/exception/DuplicateUserIdException.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/exception/DuplicateUserIdException.java"
new file mode 100644
index 0000000..1ac10e4
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/exception/DuplicateUserIdException.java"	
@@ -0,0 +1,8 @@
+package tobi.spring.exception;
+
+public class DuplicateUserIdException extends RuntimeException{
+
+    public DuplicateUserIdException(Throwable cause) {
+        super(cause);
+    }
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/mail/DummyMailSender.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/mail/DummyMailSender.java"
new file mode 100644
index 0000000..637ea7c
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/mail/DummyMailSender.java"	
@@ -0,0 +1,21 @@
+package tobi.spring.mail;
+
+import org.springframework.mail.MailException;
+import org.springframework.mail.MailSender;
+import org.springframework.mail.SimpleMailMessage;
+
+public class DummyMailSender implements MailSender {
+
+    @Override
+    public void send(SimpleMailMessage arg0) throws MailException {
+        // TODO Auto-generated method stub
+
+    }
+
+    @Override
+    public void send(SimpleMailMessage[] arg0) throws MailException {
+        // TODO Auto-generated method stub
+
+    }
+
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/Hello.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/Hello.java"
new file mode 100644
index 0000000..b52b511
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/Hello.java"	
@@ -0,0 +1,7 @@
+package tobi.spring.proxy;
+
+public interface Hello {
+    String sayHello(String name);
+    String sayHi(String name);
+    String sayThankYou(String name);
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/HelloTarget.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/HelloTarget.java"
new file mode 100644
index 0000000..f38629f
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/HelloTarget.java"	
@@ -0,0 +1,24 @@
+package tobi.spring.proxy;
+
+public class HelloTarget implements Hello{
+
+    @Override
+    public String sayHello(String name) {
+        // TODO Auto-generated method stub
+        return "Hello " + name;
+    }
+
+    @Override
+    public String sayHi(String name) {
+        // TODO Auto-generated method stub
+        return "Hi " + name;
+    }
+
+    @Override
+    public String sayThankYou(String name) {
+        // TODO Auto-generated method stub
+        return "Thank You " + name;
+    }
+
+}
+
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/TransactionHandler.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/TransactionHandler.java"
new file mode 100644
index 0000000..732c1e4
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/TransactionHandler.java"	
@@ -0,0 +1,59 @@
+package tobi.spring.proxy;
+
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.support.DefaultTransactionDefinition;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class TransactionHandler implements InvocationHandler {
+
+    private Object target;
+    private PlatformTransactionManager transactionManager;
+    //트랜잭션을 적용할 메서드 이름 패턴
+    private String pattern;
+
+    public void setTarget(Object target) {
+        this.target = target;
+    }
+
+    public void setTransactionManager(PlatformTransactionManager transactionManager) {
+        this.transactionManager = transactionManager;
+    }
+
+    public void setPattern(String pattern) {
+        this.pattern = pattern;
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] arg) throws Throwable {
+
+        if(method.getName().startsWith(pattern)) {
+            return invokeInTransaction(method, arg);
+        } else {
+            return method.invoke(target, arg);
+        }
+
+    }
+
+    private Object invokeInTransaction(Method method, Object[] args) throws Throwable {
+        TransactionStatus status =
+                this.transactionManager.getTransaction(new DefaultTransactionDefinition());
+
+        try {
+            Object object = method.invoke(target, args);
+            this.transactionManager.commit(status);
+            return object;
+
+        } catch(InvocationTargetException e) {
+
+            this.transactionManager.rollback(status);
+            throw e.getTargetException();
+        }
+
+    }
+
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/TxProxyFactoryBean.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/TxProxyFactoryBean.java"
new file mode 100644
index 0000000..db31578
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/TxProxyFactoryBean.java"	
@@ -0,0 +1,64 @@
+package tobi.spring.proxy;
+
+import org.springframework.beans.factory.FactoryBean;
+import org.springframework.transaction.PlatformTransactionManager;
+
+import java.lang.reflect.Proxy;
+
+public class TxProxyFactoryBean implements FactoryBean<Object> {
+
+    Object target;
+    PlatformTransactionManager transactionManager;
+    String pattern;
+    Class<?> serviceInterface;
+
+    public void setTarget(Object target) {
+        this.target = target;
+    }
+
+    public void setTransactionManager(PlatformTransactionManager transactionManager) {
+        this.transactionManager = transactionManager;
+    }
+
+    public void setPattern(String pattern) {
+        this.pattern = pattern;
+    }
+
+    public void setServiceInterface(Class<?> serviceInterface) {
+        this.serviceInterface = serviceInterface;
+    }
+
+    @Override
+    public Object getObject() throws Exception {
+        // 트랜잭션을 위한 InvocationHandler 생성
+        TransactionHandler txHandler = new TransactionHandler();
+        // target
+        txHandler.setTarget(target);
+        // PlatformTransactionManager의 구현체인 DataSourceTransasctionManager 를 DI 받아 주입시킴
+        txHandler.setTransactionManager(transactionManager);
+        // 메서드 이름
+        txHandler.setPattern(pattern);
+
+        // 1. 프록시 팩토리에 다이내믹 프록시 요청
+        // 2. serviceInterface 에 따른 구현 다이내믹 프록시 생성
+        // 3. txHandler 가 target 을 제어
+        return Proxy.newProxyInstance(
+                getClass().getClassLoader()
+                , new Class[] {serviceInterface}
+                , txHandler);
+    }
+
+    @Override
+    public Class<?> getObjectType() {
+        // TODO Auto-generated method stub
+        return serviceInterface;
+    }
+
+    @Override
+    public boolean isSingleton() {
+        // 싱글톤 빈이 아니라는 뜻이 아님.
+        // getObject() 가 매번 같은 오브젝트를 리턴하지 않는다는 뜻.
+        return false;
+    }
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/UppercaseHandler.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/UppercaseHandler.java"
new file mode 100644
index 0000000..b492088
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/proxy/UppercaseHandler.java"	
@@ -0,0 +1,26 @@
+package tobi.spring.proxy;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+
+public class UppercaseHandler implements InvocationHandler {
+
+    Object target;
+
+    public UppercaseHandler(Object target) {
+        // TODO Auto-generated constructor stub
+        this.target = target;
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        // TODO Auto-generated method stub
+        Object object = method.invoke(target, args);
+
+        if(object instanceof String) {
+            return ((String) object).toUpperCase();
+        }
+        return object;
+    }
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/BaseSqlService.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/BaseSqlService.java"
new file mode 100644
index 0000000..8a9cf95
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/BaseSqlService.java"	
@@ -0,0 +1,30 @@
+package tobi.spring.service;
+
+import tobi.spring.sql.*;
+
+import javax.annotation.PostConstruct;
+
+public class BaseSqlService implements SqlService {
+    protected SqlReader sqlReader;
+    protected SqlRegistry sqlRegistry;
+
+    public void setSqlReader(SqlReader sqlReader) {
+        this.sqlReader = sqlReader;
+    }
+    public void setSqlRegistry(SqlRegistry sqlRegistry) {
+        this.sqlRegistry = sqlRegistry;
+    }
+
+    @PostConstruct
+    public void loadSql() {
+        this.sqlReader.read(this.sqlRegistry);
+    }
+
+    @Override
+    public String getSql(String key) throws SqlRetirevalFailureException {
+        // TODO Auto-generated method stub
+        try { return this.sqlRegistry.findSql(key);}
+        catch(SqlNotFoundException e) { throw new SqlRetirevalFailureException(e);}
+    }
+
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserService.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserService.java"
new file mode 100644
index 0000000..ec5cbed
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserService.java"	
@@ -0,0 +1,20 @@
+package tobi.spring.service;
+
+import org.springframework.transaction.annotation.Transactional;
+import tobi.spring.domain.User;
+
+import java.util.List;
+
+public interface UserService {
+
+    void add(User user);
+
+    @Transactional(readOnly = true)
+    User get(String id);
+    @Transactional(readOnly = true)
+    List<User> getAll();
+    void deleteAll();
+    void update(User user);
+
+    void upgradeLevels();
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserServiceImpl.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserServiceImpl.java"
new file mode 100644
index 0000000..93e3467
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserServiceImpl.java"	
@@ -0,0 +1,99 @@
+package tobi.spring.service;
+
+import lombok.Setter;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.mail.MailSender;
+import org.springframework.mail.SimpleMailMessage;
+import org.springframework.stereotype.Service;
+import tobi.spring.domain.Level;
+import tobi.spring.domain.User;
+import tobi.spring.domain.UserDao;
+import tobi.spring.domain.UserDaoJdbc;
+
+import java.util.List;
+
+@Setter
+@Service("userService")
+public class UserServiceImpl implements UserService{
+
+    @Autowired
+    UserDao userDao;
+
+    @Autowired
+    MailSender mailSender;
+
+    public static final int MIN_LOGCOUNT_FOR_SILVER = 50;
+    public static final int MIN_RECOMMEND_FOR_GOLD = 30;
+
+    public void setUserDao(UserDao userDao) {
+        this.userDao = userDao;
+    }
+    public void setMailSender(MailSender mailSender2) {
+        this.mailSender = mailSender2;
+    }
+
+    @Override
+    public void add(User user) {
+        // TODO Auto-generated method stub
+        if(user.getLevel() == null) {user.setLevel(Level.BASIC);}
+
+        userDao.add(user);
+    }
+
+    @Override
+    public void upgradeLevels() {
+        List<User> users = userDao.getAll();
+        for(User user: users) {
+            if(canUpgradeLevel(user)) {
+                upgradeLevel(user);
+            }
+        }
+    }
+
+    private boolean canUpgradeLevel(User user) {
+
+        Level currentLevel = user.getLevel();
+        switch (currentLevel) {
+            case BASIC: return (user.getLogin() >= MIN_LOGCOUNT_FOR_SILVER);
+            case SILVER: return (user.getRecommend() >= MIN_RECOMMEND_FOR_GOLD);
+            case GOLD: return false;
+            default: throw new IllegalArgumentException("Unknown Level: " + currentLevel);
+        }
+    }
+
+    protected void upgradeLevel(User user) {
+        user.upgradeLevel();
+        userDao.update(user);
+        sendUpgradeEmail(user);
+    }
+
+    private void sendUpgradeEmail(User user) {
+        SimpleMailMessage mailMessage = new SimpleMailMessage();
+        mailMessage.setTo(user.getMail());
+        mailMessage.setFrom("useradmin@ksug.org");
+        mailMessage.setSubject("Upgrade 안내");
+        mailMessage.setText("사용자님의 등급이 " + user.getLevel().name() + "으로 변경되었습니다");
+
+        this.mailSender.send(mailMessage);
+    }
+    @Override
+    public User get(String id) {
+        // TODO Auto-generated method stub
+        return userDao.get(id);
+    }
+    @Override
+    public List<User> getAll() {
+        // TODO Auto-generated method stub
+        return userDao.getAll();
+    }
+    @Override
+    public void deleteAll() {
+        // TODO Auto-generated method stub
+        userDao.deleteAll();
+    }
+    @Override
+    public void update(User user) {
+        // TODO Auto-generated method stub
+        userDao.update(user);
+    }
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserServiceTx.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserServiceTx.java"
new file mode 100644
index 0000000..fc46a3b
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/service/UserServiceTx.java"	
@@ -0,0 +1,37 @@
+package tobi.spring.service;
+
+import lombok.Setter;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.support.DefaultTransactionDefinition;
+import tobi.spring.domain.User;
+
+@Setter
+public class UserServiceTx implements UserService {
+
+    UserService userService;
+    PlatformTransactionManager tr;
+
+
+    @Override
+    public void add(User user) {
+        userService.add(user);
+    }
+
+    @Override
+    public void upgradeLevels() {
+        TransactionStatus status = this.tr.getTransaction(new DefaultTransactionDefinition());
+
+        try {
+            userService.upgradeLevels();
+
+            this.tr.commit(status);
+        } catch (RuntimeException e) {
+            this.tr.rollback(status);
+            throw e;
+        }
+
+
+    }
+
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/HashMapSqlRegistry.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/HashMapSqlRegistry.java"
new file mode 100644
index 0000000..13b8448
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/HashMapSqlRegistry.java"	
@@ -0,0 +1,27 @@
+package tobi.spring.sql;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class HashMapSqlRegistry implements SqlRegistry{
+
+    private Map<String, String> sqlMap = new HashMap<>();
+
+    @Override
+    public void registerSql(String key, String sql) {
+        // TODO Auto-generated method stub
+        sqlMap.put(key, sql);
+    }
+
+    @Override
+    public String findSql(String key) throws SqlNotFoundException {
+        // TODO Auto-generated method stub
+        String sql = this.sqlMap.get(key);
+        if(sql == null) {
+            throw new SqlNotFoundException();
+        } else {
+            return sql;
+        }
+    }
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlNotFoundException.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlNotFoundException.java"
new file mode 100644
index 0000000..877bd58
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlNotFoundException.java"	
@@ -0,0 +1,16 @@
+package tobi.spring.sql;
+
+public class SqlNotFoundException extends RuntimeException{
+
+    public SqlNotFoundException() {
+        // TODO Auto-generated constructor stub
+    }
+
+    public SqlNotFoundException(String msg) {
+        super(msg);
+    }
+
+    public SqlNotFoundException(String msg, Throwable cause) {
+        super(msg, cause);
+    }
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlReader.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlReader.java"
new file mode 100644
index 0000000..c09dac6
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlReader.java"	
@@ -0,0 +1,6 @@
+package tobi.spring.sql;
+
+public interface SqlReader {
+    //SQL 을 외부에서 가져와 SqlRegistry에 등록.
+    void read(SqlRegistry sqlRegistry);
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlRegistry.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlRegistry.java"
new file mode 100644
index 0000000..b467fe2
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlRegistry.java"	
@@ -0,0 +1,6 @@
+package tobi.spring.sql;
+
+public interface SqlRegistry {
+    void registerSql(String key, String sql);
+    String findSql(String key) throws SqlNotFoundException;
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlRetirevalFailureException.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlRetirevalFailureException.java"
new file mode 100644
index 0000000..4e5397e
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlRetirevalFailureException.java"	
@@ -0,0 +1,18 @@
+package tobi.spring.sql;
+
+public class SqlRetirevalFailureException extends RuntimeException {
+    public SqlRetirevalFailureException(String msg) {
+        // TODO Auto-generated constructor stub
+        super(msg);
+
+    }
+
+    public SqlRetirevalFailureException(String msg, Throwable cause) {
+        // TODO Auto-generated constructor stub
+        super(msg, cause);
+    }
+
+    public SqlRetirevalFailureException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlService.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlService.java"
new file mode 100644
index 0000000..dcee421
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/java/tobi/spring/sql/SqlService.java"	
@@ -0,0 +1,5 @@
+package tobi.spring.sql;
+
+public interface SqlService {
+    String getSql(String key) throws SqlRetirevalFailureException;
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/resources/application.properties" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/resources/application.properties"
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/main/resources/application.properties"	
@@ -0,0 +1 @@
+
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/ApplicationTests.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/ApplicationTests.java"
new file mode 100644
index 0000000..9867392
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/ApplicationTests.java"	
@@ -0,0 +1,13 @@
+package tobi.spring;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserDaoTest.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserDaoTest.java"
new file mode 100644
index 0000000..4f660dd
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserDaoTest.java"	
@@ -0,0 +1,168 @@
+package tobi.spring.domain;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.support.DefaultListableBeanFactory;
+import org.springframework.dao.DataAccessException;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import java.sql.SQLException;
+import java.util.List;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+//@ContextConfiguration(classes = AppContext.class)
+@ActiveProfiles("test")
+public class UserDaoTest {
+
+    @Autowired
+    private UserDaoJdbc userDao;
+
+    @Autowired
+    private DefaultListableBeanFactory beanFactory;
+
+    private User user1;
+    private User user2;
+    private User user3;
+
+    @Before
+    public void setUp() {
+
+        user1= new User("first", "첫째", "1234", Level.BASIC, 1 , 0, "first@nacer.com");
+        user2= new User("second", "둘째", "12344", Level.SILVER, 55, 10, "second@naver.com");
+        user3=  new User("third", "셋째", "123456", Level.GOLD, 100, 40, "third@naver.com");
+
+    }
+
+    @Test
+    public void bean() {
+        for(String s : beanFactory.getBeanDefinitionNames()) {
+            System.out.println(s + " \t " + beanFactory.getBean(s).getClass().getName());
+        }
+
+    }
+
+    @Test
+    public void addAndGet() throws SQLException, ClassNotFoundException {
+
+        userDao.deleteAll();
+        assertThat(userDao.getCount(), is(0));
+
+        userDao.add(user1);
+        userDao.add(user2);
+
+        User userGet1 = userDao.get(user1.getId());
+        checkSameUser(user1, userGet1);
+
+        User userGet2 = userDao.get(user2.getId());
+        checkSameUser(user2, userGet2);
+    }
+
+    @Test
+    public void count() throws SQLException {
+
+
+        userDao.deleteAll();
+        assertThat(userDao.getCount(), is(0));
+
+        userDao.add(user1);
+        assertThat(userDao.getCount(), is(1));
+
+        userDao.add(user2);
+        assertThat(userDao.getCount(), is(2));
+
+        userDao.add(user3);
+        assertThat(userDao.getCount(), is(3));
+
+
+    }
+
+    @Test(expected =EmptyResultDataAccessException.class)
+    public void getUserFailure() throws SQLException{
+
+
+        userDao.deleteAll();
+        assertThat(userDao.getCount(), is(0));
+
+        userDao.get("unknown_id");
+    }
+
+    @Test
+    public void getAll() throws SQLException{
+
+        userDao.deleteAll();
+        assertThat(userDao.getCount(), is(0));
+
+        List<User> emptyLisy = userDao.getAll();
+        assertThat(emptyLisy.size(), is(0));
+
+        userDao.add(user1);
+        List<User> userList1 = userDao.getAll();
+        assertThat(userDao.getCount(), is(1));
+        checkSameUser(user1, userList1.get(0));
+
+        userDao.add(user2);
+        List<User> userList2 = userDao.getAll();
+        assertThat(userDao.getCount(), is(2));
+        checkSameUser(user1, userList2.get(0));
+        checkSameUser(user2, userList2.get(1));
+
+        userDao.add(user3);
+        List<User> userList3 = userDao.getAll();
+        assertThat(userDao.getCount(), is(3));
+        checkSameUser(user1, userList3.get(0));
+        checkSameUser(user2, userList3.get(1));
+        checkSameUser(user3, userList3.get(2));
+
+    }
+
+    public void checkSameUser(User user1, User user2) {
+
+        assertThat(user1.getId(), is(user2.getId()));
+        assertThat(user1.getName(), is(user2.getName()));
+        assertThat(user1.getPassword(), is(user2.getPassword()));
+        assertThat(user1.getLevel(), is(user2.getLevel()));
+        assertThat(user1.getLogin(), is(user2.getLogin()));
+        assertThat(user1.getRecommend(), is(user2.getRecommend()));
+    }
+
+    @Test(expected = DataAccessException.class)
+    public void duplicateKeyExceptionTest() {
+
+        userDao.deleteAll();
+        assertThat(userDao.getCount(), is(0));
+
+        userDao.add(user1);
+        userDao.add(user1);
+
+    }
+
+    @Test
+    public void update() {
+
+        userDao.deleteAll();
+
+        userDao.add(user1);
+        userDao.add(user2);
+
+        user1.setName("new");
+        user1.setPassword("1234");
+        user1.setLevel(Level.GOLD);
+        user1.setLogin(1000);
+        user1.setRecommend(999);
+
+        //assertThat(userDao.update(user1), is(1));
+
+        User user1Update = userDao.get(user1.getId());
+        checkSameUser(user1, user1Update);
+
+        User user2Same = userDao.get(user2.getId());
+        checkSameUser(user2, user2Same);
+    }
+}
\ No newline at end of file
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserServiceTest.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserServiceTest.java"
new file mode 100644
index 0000000..d392ca7
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserServiceTest.java"	
@@ -0,0 +1,302 @@
+package tobi.spring.domain;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.TransientDataAccessException;
+import org.springframework.dao.TransientDataAccessResourceException;
+import org.springframework.mail.MailException;
+import org.springframework.mail.MailSender;
+import org.springframework.mail.SimpleMailMessage;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.transaction.support.DefaultTransactionDefinition;
+import tobi.spring.config.AppContext;
+import tobi.spring.domain.Level;
+import tobi.spring.domain.User;
+import tobi.spring.domain.UserDao;
+import tobi.spring.service.UserService;
+import tobi.spring.service.UserServiceImpl;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes= AppContext.class)
+@ActiveProfiles("test")
+public class UserServiceTest {
+
+    @Autowired
+    private UserService userService;
+
+    @Autowired
+    private UserDao userDao;
+
+    @Autowired
+    private UserService testUserService;
+
+    @Autowired
+    private PlatformTransactionManager transactionManager;
+
+    List<User> users;
+
+    @Before
+    public void setUp() {
+        users = Arrays.asList(
+                new User("aa", "AA", "p1", Level.BASIC, UserServiceImpl.MIN_LOGCOUNT_FOR_SILVER -1, 0, "aa@n.com"),
+                new User("bb", "BB", "p2", Level.BASIC, UserServiceImpl.MIN_LOGCOUNT_FOR_SILVER, 0, "bb@n.com"),
+                new User("cc", "CC", "p3", Level.SILVER, 60, UserServiceImpl.MIN_RECOMMEND_FOR_GOLD -1 ,"cc@n.com"),
+                new User("dd", "DD", "p4", Level.SILVER, 60, UserServiceImpl.MIN_RECOMMEND_FOR_GOLD , "dd@n.com"),
+                new User("ee", "EE", "p5", Level.GOLD, 100, 100, "ee@n.com")
+        );
+    }
+
+    @Test
+    public void beans() {
+
+        assertThat(userDao, is(notNullValue()));
+        assertThat(userService, is(notNullValue()));
+    }
+
+    @Test
+    @DirtiesContext
+    public void upgradeLevels() throws Exception {
+
+        UserServiceImpl userServiceImpl = new UserServiceImpl();
+
+        MockMailSender mockMailSender = new MockMailSender();
+        userServiceImpl.setMailSender(mockMailSender);
+
+        MockUserDao mockUserDao = new MockUserDao(users);
+        userServiceImpl.setUserDao(mockUserDao);
+
+        userServiceImpl.upgradeLevels();
+
+        List<User> updated = mockUserDao.getUpdated();
+        assertThat(updated.size(), is(2) );
+        assertThat(updated.get(0), is(users.get(1)));
+        assertThat(updated.get(1), is(users.get(3)));
+
+        List<String> request= mockMailSender.getRequest();
+        assertThat(request.size(), is(2) );
+        assertThat(request.get(0), is(users.get(1).getMail()));
+        assertThat(request.get(1), is(users.get(3).getMail()));
+
+    }
+
+    @Test
+    public void add() {
+
+        userDao.deleteAll();
+
+        User userWithLevel = users.get(4);
+        User userWithoutLevel = users.get(0);
+        userWithoutLevel.setLevel(null);
+
+        userService.add(userWithLevel);
+        userService.add(userWithoutLevel);
+
+        User userWithLevelRead = userDao.get(userWithLevel.getId());
+        User userWithoutLevelRead = userDao.get(userWithoutLevel.getId());
+
+        assertThat(userWithLevelRead.getLevel(), is(userWithLevel.getLevel()));
+        assertThat(userWithoutLevelRead.getLevel(), is(Level.BASIC));
+    }
+
+    private void checkLevel(User user, boolean upgraded) {
+
+        User userUpgraded = userDao.get(user.getId());
+        if(upgraded) {
+            assertThat(userUpgraded.getLevel(), is(user.getLevel().nextLevel()));
+        } else {
+            assertThat(userUpgraded.getLevel(), is(user.getLevel()));
+        }
+    }
+
+
+    static class TestUserServiceException  extends RuntimeException{}
+
+    public static class TestUserServiceImpl extends UserServiceImpl{
+        private String id = "dd";
+
+        @Override
+        protected void upgradeLevel(User user) {
+            if(user.getId().equals(id)) throw new TestUserServiceException();
+            super.upgradeLevel(user);
+        }
+
+        @Override
+        public List<User> getAll() {
+            // TODO Auto-generated method stub
+            for(User user : super.getAll()) {
+
+                super.update(user);
+            }
+
+            return null;
+        }
+    }
+
+    @Test
+    public void upgradeAllOrNothing() throws Exception {
+
+        userDao.deleteAll();
+
+        for(User user: users) userDao.add(user);
+
+        try {
+            testUserService.upgradeLevels();
+            fail("TestUserServiceExecption Expected");
+        } catch(TestUserServiceException e) {
+
+        }
+
+        checkLevel(users.get(1), false);
+    }
+
+    static class MockUserDao implements UserDao {
+
+        private List<User> users;
+        private List<User> updated = new ArrayList<>();
+
+        private MockUserDao(List<User> users) {
+            this.users = users;
+        }
+
+        public List<User> getUpdated(){
+            return this.updated;
+        }
+        @Override
+        public List<User> getAll() {
+            // TODO Auto-generated method stub
+            return this.users;
+        }
+
+        @Override
+        public int update(User user) {
+            // TODO Auto-generated method stub
+            this.updated.add(user);
+            return 1;
+        }
+
+        @Override
+        public void add(User user)  {throw new UnsupportedOperationException();}
+
+        @Override
+        public User get(String id)  {throw new UnsupportedOperationException();}
+
+        @Override
+        public void deleteAll()  {throw new UnsupportedOperationException();}
+
+        @Override
+        public int getCount() {throw new UnsupportedOperationException();}
+
+
+
+    }
+
+    static class MockMailSender implements MailSender{
+
+        private List<String> request = new ArrayList<>();
+
+        public List<String> getRequest() {
+            return request;
+        }
+
+        @Override
+        public void send(SimpleMailMessage message) throws MailException {
+
+            request.add(message.getTo()[0]);
+        }
+
+        @Override
+        public void send(SimpleMailMessage[] message) throws MailException {
+        }
+
+    }
+
+    @Test
+    public void mockUpgradeLevels() throws Exception{
+
+        UserServiceImpl userServiceImpl = new UserServiceImpl();
+
+        //mock 오브젝트 생성
+        UserDaoJdbc mockUserDao = mock(UserDaoJdbc.class);
+        //getAll() 메서드를 호출하면 users 를 반환
+        when(mockUserDao.getAll()).thenReturn(this.users);
+        userServiceImpl.setUserDao(mockUserDao);
+        //mock 오브젝트 생성
+        MailSender mockMailSender = mock(MailSender.class);
+        userServiceImpl.setMailSender(mockMailSender);
+
+        userServiceImpl.upgradeLevels();
+
+        //update 메서드가 2번 호출됏나
+        verify(mockUserDao, times(2)).update(any(User.class));
+        //users.get(1) 을 파라미터로 받는 update 메서드가 호출됏나
+        verify(mockUserDao).update(users.get(1));
+        //level 확인
+        assertThat(users.get(1).getLevel(), is(Level.SILVER) );
+        verify(mockUserDao).update(users.get(3));
+        assertThat(users.get(3).getLevel(), is(Level.GOLD));
+
+        ArgumentCaptor<SimpleMailMessage> mailMessageArg =
+                ArgumentCaptor.forClass(SimpleMailMessage.class);
+        verify(mockMailSender, times(2)).send(mailMessageArg.capture());
+        List<SimpleMailMessage> mailMessages = mailMessageArg.getAllValues();
+        assertThat(mailMessages.get(0).getTo()[0], is(users.get(1).getMail()));
+        assertThat(mailMessages.get(1).getTo()[0], is(users.get(3).getMail()));
+
+
+    }
+
+    @Test(expected = TransientDataAccessResourceException.class)
+    public void readOnlyTransactionAttribute() {
+        testUserService.getAll();
+    }
+
+    @Test(expected = TransientDataAccessException.class)
+    @Transactional(readOnly = true)
+    public void transactionSync() {
+
+        userService.deleteAll();
+
+
+    }
+
+    @Test
+    public void rollbackTEst() {
+
+        //트랜잭션 시작
+        TransactionStatus txStatus = transactionManager.getTransaction(new DefaultTransactionDefinition());
+
+        try {
+            userService.deleteAll();
+            userService.add(users.get(1));
+            userService.add(users.get(2));
+
+        } finally {
+            transactionManager.rollback(txStatus);
+        }
+    }
+
+
+}
diff --git "a/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserTest.java" "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserTest.java"
new file mode 100644
index 0000000..a1a26a0
--- /dev/null
+++ "b/cherry/Spring-Boot.hello-spring/\352\260\234\354\235\270 \355\224\204\353\241\234\354\240\235\355\212\270/spring/src/test/java/tobi/spring/domain/UserTest.java"	
@@ -0,0 +1,27 @@
+package tobi.spring.domain;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+
+import org.junit.Test;
+
+public class UserTest {
+    User user = new User("aa", "AA", "p1", Level.BASIC, 0, 0, "asd");
+
+    @Test
+    public void upgradeLevel() {
+
+        user.upgradeLevel();
+        assertThat(user.getLevel(), is(Level.SILVER));
+        user.upgradeLevel();
+        assertThat(user.getLevel(), is(Level.GOLD));
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void upgradeLevelException() {
+
+        user.setLevel(Level.GOLD);
+
+        user.upgradeLevel();
+    }
+}