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1、摘要電子郵件是Internet應(yīng)用服務(wù)之一,也是使用最多的互聯(lián)網(wǎng)服務(wù)。電子郵件系統(tǒng)通過(guò)Internet,實(shí)現(xiàn)各類(lèi)信息的傳送、接受貯存等處理,將郵件傳送到世界的各個(gè)角落。電子郵件系統(tǒng)經(jīng)過(guò)幾十年的發(fā)展,已經(jīng)形成了完善的技術(shù)體系。用戶(hù)最初只能通過(guò)Outlook,F(xiàn)oxmail等客戶(hù)端軟件來(lái)收發(fā)自己的郵件,但單純的客戶(hù)端程序進(jìn)行郵件的收發(fā)已經(jīng)不能滿(mǎn)足用戶(hù)移動(dòng)辦公的需要。Web郵件技術(shù)的出現(xiàn),徹底解決了用戶(hù)辦公的需要,其快捷、方便的優(yōu)點(diǎn)吸引了眾多的網(wǎng)絡(luò)用戶(hù)。用戶(hù)無(wú)須安裝任何Email客戶(hù)端軟件,只需使用瀏覽器打開(kāi)放在服務(wù)器上的特定網(wǎng)頁(yè)即可進(jìn)行Email收發(fā)及相關(guān)操作。J2EE、AJAX技術(shù)等新
2、的Web技術(shù)的層出為郵件系統(tǒng)的更新帶來(lái)了巨大的突破。本文著重闡述了實(shí)現(xiàn)基于J2EE的Hibernate技術(shù)和AJAX技術(shù)的Web郵件系統(tǒng)的理論基礎(chǔ)、設(shè)計(jì)思想、系統(tǒng)架構(gòu)、開(kāi)發(fā)過(guò)程以及對(duì)以上內(nèi)容的總結(jié)與展望。論文前半部分著重論述了Hibernate、AJAX和JavaMail郵件技術(shù),闡釋了電子郵件系統(tǒng)的工作原理及郵件傳送過(guò)程,探尋如何開(kāi)發(fā)郵件服務(wù)。簡(jiǎn)單介紹了與郵件系統(tǒng)相關(guān)的幾個(gè)重要協(xié)議。熟悉按照這些協(xié)議、規(guī)范進(jìn)行的電子郵件的傳送過(guò)程。論文后半部分是對(duì)系統(tǒng)的各個(gè)模塊進(jìn)行分析、設(shè)計(jì)和編碼。包括系統(tǒng)整體設(shè)計(jì)思想,模塊設(shè)計(jì)思想以及各功能模塊實(shí)現(xiàn)的流程圖等。最后對(duì)該郵件系統(tǒng)進(jìn)行了總結(jié)和展望。關(guān)鍵
3、詞:電子郵件,郵件系統(tǒng),郵件協(xié)議-37-ABSTRACTEmailisoneofInternetapplicationsandalsotheserviceusersusemost.ElectronicMailSystemfulfillstransmission,receiving,storingmanagementofallkindsofsignalsthroughInternetwhichconnectsthewholeworld,sendingmailstoeverycorneroftheworld.Withmanyyears'development,EmailSystemhas
4、formedconsummatetechnologyarchitecture.UserscanonlyuseclientsoftwaressuchasOutlook,Foxmailtoreceiveandsendtheirownmailsatfirst,butthiscan'tsatisfytherequirementofusers'movingoffice.WiththeappearanceofWebMailtechnique,theproblemhasbeencompletelysolved.Manynetworkusersareattractedbyitsadvantageso
5、fspeedinessandconvenience.UserscanimplementEmailreceiving,EmailsendingandsoonbyopeningcertainWebpagesonServersthroughBrowserswithoutinstallinganyEmailClientsoftwares.ThelayerofthenewWebtechniqueoftheJ2EE,AJAXtechnique..etc.formailsystemofrenewalbringhugeofbreak.Thispaperemphasizesexpatiatingont
6、heimplementationofWebMailsystembasedontheHibernateofJ2EEplatformandAJAX,includingtheirtheoryfoundation,designidea,systemstructure,developmentprocess,sum-upandexpectationofallabove.ThefirsthalfpartofthepaperdiscussestheHibernateandtheAJAXarchitectureandJavaMailmailtechnique,explainingtheworkprin
7、cipiaofEmailsystemandthetransmissionprocessofEmail,exploringhowthesetechnologiesuseJavaMailAPItoprovidestandardmailservice.Thenthepapersimplyintroducesseveralimportantprotocolscorrelativewithmailsystemandcomprehendsthetransmission