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<!DOCTYPE HTML>
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<title>2.服务依赖关系 · 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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13.Server源码分析
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13.1.模块依赖关系
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14.SPI定制化
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<a href="." >2.服务依赖关系</a>
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<h1 id="服务依赖关系">服务依赖关系</h1><p><img src="服务依赖关系.png"></p><h2 id="说明">1. 说明</h2><ol><li>业务系统是要发送业务消息的服务，所有要推送的消息直接转给MPNS
</li>
<li>MPNS是我们的业务推送系统，负责消息推送，长链接的检查，离线消息存储，用户打标等
</li>
<li>APNS、JPUSH、MPUSH等分别是我们的客户端已经接入的推送系统
</li>
<li>MPNS主要是为了隔离业务系统和各种推送系统，用户使用哪个长链接服务，业务系统不需要感知，统一有MPNS去选择、去切换
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<li>Alloc负责调度维护MPushServer集群，提供查询可用机器列表的接口，详细参见<a href="chapter17.html">Alloc实现</a>
</li></ol>
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