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geekxingyungeekxingyun
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format pom.xml
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‎lucene-sample/pom.xml

+28-27
Original file line numberDiff line numberDiff line change
@@ -8,35 +8,9 @@
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<name>lucene-sample</name>
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<properties>
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<java.version>1.8</java.version>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<build>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>1.3.2</version>
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<executions>
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<execution>
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<id>ex</id>
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<phase>package</phase>
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<goals>
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<goal>exec</goal>
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</goals>
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<configuration>
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<executable>java</executable>
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<arguments>
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<argument>-classpath</argument>
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<classpath />
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<argument>HelloLucene.HelloLucene</argument>
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</arguments>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<dependency>
@@ -65,4 +39,31 @@
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<version>7.1.0</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>1.3.2</version>
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<executions>
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<execution>
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<id>ex</id>
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<phase>package</phase>
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<goals>
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<goal>exec</goal>
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</goals>
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<configuration>
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<executable>java</executable>
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<arguments>
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<argument>-classpath</argument>
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<classpath />
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<argument>HelloLucene.HelloLucene</argument>
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</arguments>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎lucene-sample/src/main/java/com/xingyun/HelloLucene.java

+55-73
Original file line numberDiff line numberDiff line change
@@ -3,85 +3,67 @@
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import java.io.IOException;
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import java.text.ParseException;
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import org.apache.lucene.analysis.standard.StandardAnalyzer;
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import org.apache.lucene.document.Document;
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import org.apache.lucene.document.Field;
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import org.apache.lucene.document.StringField;
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import org.apache.lucene.document.TextField;
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import org.apache.lucene.index.DirectoryReader;
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import org.apache.lucene.index.IndexReader;
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import org.apache.lucene.index.IndexWriter;
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import org.apache.lucene.index.IndexWriterConfig;
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import org.apache.lucene.queryparser.classic.QueryParser;
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import org.apache.lucene.search.IndexSearcher;
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import org.apache.lucene.search.Query;
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import org.apache.lucene.search.ScoreDoc;
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import org.apache.lucene.search.TopScoreDocCollector;
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import org.apache.lucene.store.Directory;
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import org.apache.lucene.store.RAMDirectory;
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import org.apache.lucene.util.Version;
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public class HelloLucene {
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public static void main(String[] args) throws IOException, ParseException {
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// 对于这个简单的例子，我们将从一些字符串中创建一个内存索引。
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// 0. Specify the analyzer for tokenizing text.
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// The same analyzer should be used for indexing and searching
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StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_40);
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// 1. create the index
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Directory index = new RAMDirectory();
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IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_40, analyzer);
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IndexWriter w = new IndexWriter(index, config);
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addDoc(w, "Lucene in Action", "193398817");
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addDoc(w, "Lucene for Dummies", "55320055Z");
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addDoc(w, "Managing Gigabytes", "55063554A");
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addDoc(w, "The Art of Computer Science", "9900333X");
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w.close();
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// 2. query
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String querystr = args.length > 0 ? args[0] : "lucene";
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// the "title" arg specifies the default field to use
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// when no field is explicitly specified in the query.
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Query q = null;
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try {
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q = new QueryParser(Version.LUCENE_40, "title", analyzer).parse(querystr);
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} catch (org.apache.lucene.queryparser.classic.ParseException e) {
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e.printStackTrace();
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}
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// 3. search
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int hitsPerPage = 10;
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IndexReader reader = DirectoryReader.open(index);
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IndexSearcher searcher = new IndexSearcher(reader);
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TopScoreDocCollector collector = TopScoreDocCollector.create(hitsPerPage, true);
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searcher.search(q, collector);
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ScoreDoc[] hits = collector.topDocs().scoreDocs;
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// 4. display results
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System.out.println("Found " + hits.length + " hits.");
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for (int i = 0; i < hits.length; ++i) {
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int docId = hits[i].doc;
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Document d = searcher.doc(docId);
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System.out.println((i + 1) + ". " + d.get("isbn") + "\t" + d.get("title"));
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}
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// reader can only be closed when there
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// is no need to access the documents any more.
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reader.close();
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}
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private static void addDoc(IndexWriter w, String title, String isbn) throws IOException {
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Document doc = new Document();
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doc.add(new TextField("title", title, Field.Store.YES));
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// use a string field for isbn because we don't want it tokenized
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doc.add(new StringField("isbn", isbn, Field.Store.YES));
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w.addDocument(doc);
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// StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_7_1_0);
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//
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// // 1. create the index
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// Directory index = new RAMDirectory();
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//
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// IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_40, analyzer);
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//
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// IndexWriter w = new IndexWriter(index, config);
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// addDoc(w, "Lucene in Action", "193398817");
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// addDoc(w, "Lucene for Dummies", "55320055Z");
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// addDoc(w, "Managing Gigabytes", "55063554A");
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// addDoc(w, "The Art of Computer Science", "9900333X");
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// w.close();
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//
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// // 2. query
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// String querystr = args.length > 0 ? args[0] : "lucene";
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//
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// // the "title" arg specifies the default field to use
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// // when no field is explicitly specified in the query.
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// Query q = null;
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// try {
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// q = new QueryParser(Version.LUCENE_40, "title", analyzer).parse(querystr);
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// } catch (org.apache.lucene.queryparser.classic.ParseException e) {
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// e.printStackTrace();
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// }
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//
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// // 3. search
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// int hitsPerPage = 10;
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// IndexReader reader = DirectoryReader.open(index);
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// IndexSearcher searcher = new IndexSearcher(reader);
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// TopScoreDocCollector collector = TopScoreDocCollector.create(hitsPerPage, true);
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// searcher.search(q, collector);
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// ScoreDoc[] hits = collector.topDocs().scoreDocs;
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//
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// // 4. display results
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// System.out.println("Found " + hits.length + " hits.");
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// for (int i = 0; i < hits.length; ++i) {
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// int docId = hits[i].doc;
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// Document d = searcher.doc(docId);
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// System.out.println((i + 1) + ". " + d.get("isbn") + "\t" + d.get("title"));
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// }
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//
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// // reader can only be closed when there
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// // is no need to access the documents any more.
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// reader.close();
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// }
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//
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// private static void addDoc(IndexWriter w, String title, String isbn) throws IOException {
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// Document doc = new Document();
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// doc.add(new TextField("title", title, Field.Store.YES));
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//
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// // use a string field for isbn because we don't want it tokenized
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// doc.add(new StringField("isbn", isbn, Field.Store.YES));
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// w.addDocument(doc);
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// }
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}
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}

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