O'Reilly - Java Network Programming, 2nd Ed

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1、PrefaceJava™'sgrowthoverthelastfiveyearshasbeennothingshortofphenomenal.GivenJava'srapidrisetoprominenceandthegeneralinterestinnetworking,it'salittlesurprisingthatnetworkprogramminginJavaisstillsomysterioustosomany.Thisdoesn'thavetobe.Infact,writingnetworkprogramsinJavaisquitesimple,asthisbookwill

2、show.ReaderswithpreviousexperienceinnetworkprogramminginaUnix,Windows,orMacintoshenvironmentshouldbepleasantlysurprisedathowmucheasieritistowriteequivalentprogramsinJava.That'sbecausetheJavacoreAPIincludeswell-designedinterfacestomostnetworkfeatures.Indeed,thereisverylittleapplicationlayernetworks

3、oftwareyoucanwriteinCorC++thatyoucan'twritemoreeasilyinJava.JavaNetworkProgrammingendeavorstoshowyouhowtotakeadvantageofJava'snetworkclasslibrarytoquicklyandeasilywriteprogramsthataccomplishmanycommonnetworkingtasks.Theseinclude:•BrowsingpagesontheWeb•ParsingandrenderingHTML•SendingemailwithSMTP•R

4、eceivingemailwithPOPandIMAP•Writingmultithreadedservers•Installingnewprotocolandcontenthandlersintobrowsers•Encryptingcommunicationsforconfidentiality,authentication,andguaranteedmessageintegrity•DesigningGUIclientsfornetworkservices•PostingdatatoCGIprograms•LookinguphostsusingDNS•Downloadingfiles

5、withanonymousFTP•Connectingsocketsforlow-levelnetworkcommunication•DistributingapplicationsacrossmultiplesystemswithRemoteMethodInvocationJavaisthefirstlanguagetoprovidesuchapowerfulcross-platformnetworklibrarythathandlesallthesediversetasks.JavaNetworkProgrammingexposesthepowerandsophisticationof

6、thislibrary.Thisbook'sgoalistoenableyoutostartusingJavaasaplatformforseriousnetworkprogramming.Todoso,thisbookprovidesageneralbackgroundinnetworkfundamentalsaswellasdetaileddiscussionsofJava'sfacilitiesforwritingnetworkprograms.You'lllearnhowtowriteJavaappletsandapplicationsthatsharedataacrosstheI

7、nternetforgames,collaboration,softwareupdates,filetransferandmore.You'llalsogetabehind-the-sceneslookatHTTP,CGI,TCP/IP,andtheotherprotocolsthatsupporttheInternetandtheWeb.Whenyoufinishthisbook,you'llhavetheknowle