【正文】 as Outlook, Foxmail to receive and send their own mails at first, but this can39。 moving office. With the appearance of Web Mail technique, the problem has been pletely solved. Many work users are attracted by its advantages of speediness and convenience. Users can implement Email receiving, Email sending and so on by opening certain Web pages on Servers through Browsers without installing any Email Client softwares. The layer of the new Web technique of the J2EE, AJAX technique ..etc. for mail system of renewal bring huge of break. This paper emphasizes expatiating on the implementation of Web Mail system based on the Hibernate of J2EE platform and AJAX , including their theory foundation, design idea, system structure, development process, sumup and expectation of all above. The first half part of the paper discusses the Hibernate and the AJAX architecture and JavaMail mail technique, explaining the work principia of Email system and the transmission process of Email, exploring how these technologies use JavaMail API to provide standard mail service. Then the paper simply introduces several important protocols correlative with mail system and prehends the transmission process of Email according to these protocols and criterions. The other half part of this paper sets forth analyse, design and coding of each module in the mail system, including system39。 design idea, implementation flow chart of each module, etc. In the end, the summarization of the Web Mail system is simply discussed in this paper. Keywords: Email, Mail System ,Mail Protocols III 目錄 摘要 .................................................................................................................................... I ABSTRACT ...................................................................................................................... II 第 1 章 引言 ..................................................................................................................... 1 背景 ................................................................................................................... 1 研究內(nèi)容 ........................................................................................................... 2 第 2 章 郵件系統(tǒng)開發(fā)方法 ............................................................................................. 3 AJAX 客戶端開發(fā) ............................................................................................. 3 AJAX 的異步能力 ............................................................................... 3 AJAX 豐富頁面操作 ........................................................................... 3 數(shù)據(jù)庫訪問技術(shù)分析 ....................................................................................... 4 JDBC 數(shù)據(jù)庫訪問技術(shù) ........................................................................ 4 Hibernate 中間件 .................................................................................. 4 J2EE 郵件開發(fā) .................................................................................................. 5 開發(fā)環(huán)境介紹 ................................................................................................... 6 DREAMWEAVER................................................................................ 6 MyEclipse ....................................................................................... 6 Microsoft SQLServer 2020 ................................................................... 7 Tomcat ............................................................................................. 8 本章小結(jié) ........................................................................................................... 9 第 3 章 系統(tǒng)需求分析 ................................................................................................... 10 系統(tǒng)設(shè)計(jì)原理 .................................................................................................. 10 系統(tǒng)主要功能要求 ......................................................................................... 11 本章小結(jié) ......................................................................................................... 13 第 4 章 數(shù)據(jù)庫設(shè)計(jì) ....................................................................................................... 14 數(shù)據(jù)庫結(jié)構(gòu)分析 ............................................................................................. 14 概念結(jié)構(gòu)設(shè)計(jì) ................................................................................................. 15 邏輯結(jié)構(gòu)設(shè)計(jì) ................................................................................................. 17 數(shù)據(jù)庫安全性和完整性 ................................................................................. 19 IV 數(shù)據(jù)庫的安全性 ................................................................................. 19 數(shù)據(jù)完整性 ......................................................................................... 19 本章小結(jié) ......................................................................................................... 20 第 5 章 系統(tǒng)詳細(xì)設(shè)計(jì)與實(shí)現(xiàn) ....................................................................................... 21 郵件管理設(shè)計(jì) ................................................................................................. 21 異步發(fā)送電子郵件 ............................................................................. 21 利用 POP3 協(xié)議接收電子郵件 ......................................................... 25 郵件標(biāo)簽管理設(shè)計(jì) ......................................................................................... 28 添加標(biāo)簽 ............................................................................................. 28 修改標(biāo)簽 ............................................................................................. 28 刪除標(biāo)簽 ............................................................................................. 28 使用標(biāo)簽 .............................................................................