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<!DOCTYPE HTML>
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<title>9.1.SDK系统架构 · MPUSH开发文档</title>
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0.Introduction
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1.系统架构
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2.服务依赖关系
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3.协议
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4.主要流程
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4.1.密钥交换方案
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4.2.握手及快速重连
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4.3.绑定用户及路由发布
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4.4.解绑用户
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4.5.消息推送
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4.6.Http代理
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5.服务部署
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6.源码测试
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7.配置详解
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8.Alloc实现
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9.Android SDK
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9.1.SDK系统架构
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9.2.MpushClient架构
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11.服务端SDK
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12.HTTP代理
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<h1 id="SDK系统架构">SDK系统架构</h1><h2 id="系统架构图">1. 系统架构图</h2><p><img src="AndroidSDK架构图.png"></p><h2 id="说明">2. 说明</h2><ol><li>整个图非常简单清晰的分为Server、SDK、BIZ三部分。
</li>
<li>MpushClient负责和server通信，屏蔽网络，协议，断线重连等所有和长链接相关的东西。
</li>
<li>MpushService是常驻服务，持有MpushClient,并把自身作为MpushClient的ClientListener，监听MpushClient的变化事件。
</li>
<li>MpushReceiver主要负责监听网络变化和AlarmManager，以便暂停和恢复推送服务以及健康检查。
</li>
<li>线1表示上行的请求，比如握手，心跳，绑定用户，业务HTTP代理请求等。
</li>
<li>线2表示下行响应或推送，比如握手成功，心跳响应，HTTP代理响应等。
</li>
<li>线3表示Client下发的事件，主要有：链接建立/断开，握手成功，收到PUSH，设备被踢下线等事件，其中PUSH和KICK_USER事件会广播出去，由业务(MyReceiver)接收；其他事件会通知给MpushReceiver以便其能更好的控制MpushClient的起停，而MpushService就比较轻量基本没有什么业务逻辑，只负责维持后台服务。
</li>
<li>线4表示由MpushService广播出去的PUSH消息，由于采用的是广播的形式，所有也可以分进程。
</li>
<li>线5表示消息有MyReceiver过滤处理后，转交给业务去显示或存DB等。
</li>
<li>线6表示业务可以直接调用MpushClient提供的接口发送消息，目前支持的有绑定usreId，发送Http请求等。
</li>
<li>线7表示一些不需要业务处理的消息都交由MpuhReceiver处理，比如握手成功后启动AlarmManager，当链接断开后取消AlarmManager。
</li>
<li>线8表示MpushReceiver接收到AlarmManager的提醒后去调用MpshClient的healthCheck方法发送心跳。
</li>
<li>线9表示MpushReceiver接收到网络变化后暂停或恢复MpushClient，这样做主要是为了省电，因为在网络断开后，MpushClient会去尝试重连而这时候去重连是没有意义的，因为没有网络。
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<footer class="page-footer"><span class="copyright">Copyright © ohun.com 2016 all right reserved，powered by Gitbook</span><span class="footer-modification">该文件修订时间：
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<div id="anchors-navbar"><i class="fa fa-anchor"></i><ul><p><a href="#SDK系统架构">SDK系统架构</a></p><li><a href="#系统架构图">1. 系统架构图</a></li><li><a href="#说明">2. 说明</a></li></ul></div><a href="#系统架构图" id="goTop"><i class="fa fa-arrow-up"></i></a>
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