摘 要电子邮件做为一种重要的通信手段与人们的生活息息相关。通过实时的邮件收发以 及重要的文件传输，电子邮件提供了快速、便捷的服务，被人们广泛的使用。而随着通 信技术的发展以及互联网向移动端的普及，使得在移动端使用电子邮件成为一种趋势， Android 平台作为开元的平台，其开放性的特点更适合于软件开发。电子邮件结合 Android 手机的移动性，将会使人们通信更加方便、简单。95166

本课题研究的是对邮件通信相关协议的分析以及邮件协议在 Android 平台上的应 用，实现一个 Android 平台上的邮件客户端。该邮件系统的主要可以实现以下功能：账 号登陆、简单邮件及带附件邮件的发送、简单邮件及带附件邮件的接收、对邮件进行关 键字搜索、增添或删除联系人、账号切换等。本文主要介绍了 SMTP、POP3 等邮件相 关协议的内容和工作原理，以及介绍 Android 邮件客户端的项目背景、研究意义、功能 模块组成和具体实现方式。

Android 邮件客户端开发工具运用了 Eclipse，安装 Android SDK 和 ADT 插件，搭 建 Android 开发需要的环境。利用 SUN 公司提供的邮件标准开发包 Javamail API，在 SMTP 和 POP3 等协议的基础上，实现一个简单的邮件系统。通过对系统功能的测试结 果进行分析，该系统的各个模块都可以实现相应的功能。该系统为邮件协议的分析与应 用提供了一定的参考意义。

毕业论文关键词：SMTP、POP3、邮件客户端、Android

Abstract E-mail as an important means of communication and people's lives are closely related。Through send and receive real-time e-mail and important file transfer ,e-mail provides a fast and convenient services, it is widely used people。With the development of communication technology and the popularity of the Internet to the mobile side, making the use of e-mail on the mobile side to become a trend, Android platform as a platform for open source, its open features more suitable for software development。Email combination of Android mobile phone, will make people communicate more convenient and simple。

This topic is the analysis of the mail communication protocol and the mail protocol on the Android platform, the application of an Android platform to achieve the mail client。The main function of the mail system can achieve the following functions: account login, simple mail and send mail with attachments, simple mail and attachments to receive mail, keyword search for messages, add or delete contacts, account switching and so on。 This paper mainly introduces the contents and working principle of the e-mail transfer protocol such as SMTP and POP3 etc。and introduces the project background, research significance, function module and concrete realization of Android email client。

Android e-mail client development tools use the Eclipse, install the Android SDK and ADT Plugin,building the environment of Android development needed。Use of JavaMail API which standard e-mail development kit provided by the SUN company,On the basis of the SMTP and POP3 and other protocol, achieved of a simple e-mail system。Through the analysis of the system function test results, the system of the various modules can achieve the corresponding function。 The system provides some reference for the analysis and application of mail protocol。

Keywords:SMTP;POP3;e-mail system;Android;

目 录

第一章 绪论 1

1。1  研究背景及意义 1

1。2  国内外研究现状、问题及趋势 2

1。3  研究内容 4

1。4  论文组织结构 4

第二章 电子邮件协议分析