【正文】 d too many business changing requirements, which results of Electronic mail system maintenance and operations bee difficult to change. In order to greatly convenient of Inter users, the Electronic mail system used the B/S technology to carry on the development, which has avoided the malpractice of the traditional C/S structure. And bining the Electronic mail system and the Web application, then user can visit Electronic mail system just by opening the browser. The Electronic mail system basic function: the user registers, address list management, receiving the mail, sending the mail, reading the mail, mail management function. In this paper, it firstly begins with the software architecture patterns, and then constructs an Electronic mail system which supports the basic functions, such as sending and receiving , managing box. On the basis of introducing Struts2 architecture and MVC structure, the paper discusses how to use these technologies and frameworks of java to build a flexible, practical online teaching platform by MyEclipse development tool. Overall the whole Electronic mail system is divided into four modules: user management module, mail transceiver module, management module, address book management module. The function of the system mainly divided into two most administrators and users management, administrators management mainly includes the management of user information, delete users, etc.。 系統(tǒng)的 功能主要分為管理員管理和用戶管理兩大部分，管理員管理主要包括管理用戶信息、刪除用戶等；用戶管理主要包括用戶個(gè)人信息的管理、個(gè)人郵箱的管理等。在介紹 Struts2和 MVC整體架構(gòu)相關(guān)理論的基礎(chǔ)上，研究如何使用 Java框架和技術(shù)， MyEclipse開發(fā)工具 來 構(gòu)建靈活、實(shí)用的郵件收發(fā)平臺(tái)。并且將 Email系統(tǒng)和Web應(yīng)用結(jié)合起來，用戶僅通過瀏覽器訪問 電子 郵件系統(tǒng)即可。 畢業(yè)設(shè)計(jì) 電子郵件系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn) 吉林建筑 大學(xué) 2021 年 6 月 畢業(yè)設(shè)計(jì) 電子郵件系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn) 學(xué) 生： 指導(dǎo)教師： 專 業(yè)：計(jì)算機(jī)科學(xué)與技術(shù) 所在單位：計(jì)算機(jī)科學(xué)與工程學(xué)院 答辯日期： 2021 年 6 月 19 日 吉林建筑大學(xué) 畢業(yè)設(shè)計(jì) (論文 ) I 摘 要 由于網(wǎng)絡(luò)中電子郵件系統(tǒng)繁多、業(yè)務(wù)需求多變，基于各郵件服務(wù)器的電子郵件 系統(tǒng)的維護(hù)和業(yè)務(wù)變更變得難以進(jìn)行。 為了極大地方便上網(wǎng)用戶，系統(tǒng)使用了B/S技術(shù) 進(jìn) 行開發(fā) ， 避免了原有 C/S結(jié)構(gòu)開發(fā)所帶來的弊端。 本文從軟件體系結(jié)構(gòu)設(shè)計(jì)模式的角度入手，首先設(shè)計(jì)和實(shí)現(xiàn)一個(gè)支持郵件收發(fā)、管理等 基本功能的 電子郵件系統(tǒng) 。 整個(gè)電子郵件系統(tǒng) 總體分為四大模塊：用戶管理模塊、郵件收發(fā)模塊、郵件管理模塊、通訊錄管理模塊。 此電子郵件系統(tǒng)是一個(gè)簡(jiǎn)單的郵件收發(fā)系統(tǒng)，能 實(shí)現(xiàn)郵件的接收與發(fā)送，并能完成附件的傳輸， 還可 實(shí)現(xiàn)郵件用戶登錄管理及郵件刪除等功能 ， 能夠解決小型企業(yè)和集體不能在同一平臺(tái)通信交流的問題。 User management mainly includes the user personal information management, and the management of the personal Email. This system is a simple system, realize receiving and sending mail, and the attachment to plete transfer, at the same time can realize mail users delete login management and etc. Can solve the small enterprise and the collective can39。 MyEclipse。 Struts2 吉林建筑大學(xué) 畢業(yè)設(shè)計(jì) (論文 ) III 目 錄 摘 要 .............................................................................................................................. I ABSTRACT ................................................................................................................... II 第 1 章 緒論 .................................................................................................................. 1 選題的背景 ......................................................................................................... 1 課題研究意義和目的 ......................................................................................... 1 論文的組織結(jié)構(gòu) ................................................................................................. 1 第 2 章 系統(tǒng)開發(fā)工具及開發(fā)平臺(tái) .............................................................................. 3 系統(tǒng)開發(fā)的工具 ................................................................................................. 3 MyEclipse ...................................................................................... 3 SQL2021 .................................................................................................. 3 B/S 架構(gòu)編程體系 ................................................................................. 3 系統(tǒng)開發(fā)的技術(shù) ................................................................................................. 4 MVC 理論基礎(chǔ) ......................................................................................... 4 Struts2 框架技術(shù) ................................................................................. 6 本章小結(jié) ............................................................................................................. 8 第 3 章 系統(tǒng)需求分析 .................................................................................................. 9 用戶需求 ............................................................................................................. 9 用戶端特性 ............................................................................................ 9 系統(tǒng)功能需求 ........................................................................................ 9 運(yùn)行環(huán)境需求 ........................................................................................ 9 數(shù)據(jù)描述 ........................................................................................................... 10 數(shù)據(jù)字典 .............................................................................................. 10 本章小結(jié) ........................................................................................................... 12 第 4 章 系統(tǒng)設(shè)計(jì) ........................................................................................................ 13 系統(tǒng)設(shè)計(jì)思想 ................................................................................................... 13 系統(tǒng)模塊設(shè)計(jì) ................................................................................................... 13 概念結(jié)構(gòu)設(shè)計(jì) ................................................................................................... 15 邏輯結(jié)構(gòu)設(shè)計(jì) ................................................................................................... 16 本章小結(jié) ..................................