求網上聊天室的源碼，用JSP或者Servlet都行。

用ajax和jsp寫的，不用刷新頁面就可以顯示聊天記錄js/js.js文件varnbspobjvarnbspgetId = document.getElementById功能nbsp。objXMLHttp(){ nbsp；nbspnbspnbspvarnbspXmlHttpObjnbsp。= nbsp假的；nbspnbspnbspnbsp如果(窗口。ActiveXObject)nbsp。nbspnbspnbsp{ nbspnbspnbspnbspnbspnbspnbspnbspXmlHttpObjnbsp。= nbsp新nbsp。ActiveXObject("MSXML2。xmlhttp . 3.0”)；nbspnbspnbspnbsp} nbspnbspnbspnbspnbspnbspelsenbspifnbsp。(窗口。XMLHttpRequest)nbsp。nbspnbspnbsp{ nbspnbspnbspnbspnbspnbspnbspnbspXmlHttpObjnbsp。= nbsp新nbsp。XMLHttpRequest()；nbspnbspnbspnbsp} nbspnbspnbspnbspnbspnbsp返回nbsp。XmlHttpObj}功能nbsp。sendMsg(auto){nbsp。obj = objXMLHttp()；nbsp如果(！auto)//nbsp；{ nbspnbspvarnbspmyContentnbsp= nbspgetId("myText ")。價值；nbspnbspif(myContentnbsp；！= nbsp》)nbspnbsp{ nbspnbspnbsp如果(obj)nbsp。nbspnbspnbspnbspnbsp{ nbspnbspnbspnbspobj.onreadystatechangenbsp= nbspaddChatnbspnbspnbspnbspobj.open("POST "，" do.jsp "，nbsp真)；nbspnbspnbspnbspobj . setrequestheader(" Content-Type "，" application/x-www-form-urlencoded；");nbspnbspnbspnbspnbspobj . send(" my content = " nbsp；+nbsp；my content)；nbspnbspnbspnbspgetId("myText ")。值= " "；nbspnbspnbspnbspgetId("myText ")。焦點()；nbspnbspnbspnbsp滾動()；nbspnbspnbspnbspnbspnbsp} nbspnbsp} nbspnbspelsenbspnbsp{ nbspnbspnbspalert(" nbsp；(*^__^*)nbsp；如果妳不告訴我們，我們怎麽知道妳會保持沈默？”);nbspnbspnbspGetid ("mytext ")。value = "保持沈默"；nbspnbspnbspgetId("myText ")。焦點()；nbspnbsp} nbsp} nbspelse//nbsp；{ nbspnbsp如果(obj)nbsp。nbsp{ nbspnbspnbspobj.onreadystatechangenbsp= nbspaddChatnbspnbspnbspobj.open("POST "，" do.jsp "，nbsp真)；nbspnbspnbspobj . setrequestheader(" Content-Type "，" application/x-www-form-urlencoded；");nbspnbspnbspnbspobj . send(null)；nbspnbspnbsp滾動()；nbspnbsp} nbsp} }功能nbsp。AddChat()//添加聊天記錄{ nbspvarnbsp文檔nbsp。= nbsp"";nbspif(obj . readystatenbsp；= = nbsp4nbspampampnbspobj.statusnbsp= = nbsp200)nbsp。{ nbspnbspdoc = obj.responseTextnbspnbsp如果(docnbsp！= nbsp》)nbspnbsp{ nbspnbspnbspgetId("says ")。value = docnbspnbsp} nbsp} }功能nbsp。getChatContent(){ nbsp；tnbsp= nbspsetInterval('sendMsg(true)'，800)；}功能nbsp。quickSend(){ nbsp；nbspif(getId("sendType ")。value=="ctrlEnter")nbsp。{ nbspnbspif(window . event . ctrl keyamp；ampwindow . event . key code = = 13)nbsp；nbsp{ nbspnbspnbspsend msg(false)；nbspnbsp} nbsp} nbspelsenbspif(getId("sendType ")。value=="enterKey")nbsp。{ nbspnbspif(window . event . key code = = 13)nbsp；nbsp{ nbspnbspnbspsend msg(false)；nbspnbsp} nbsp} }功能nbsp。loginConfirm(){ nbsp；if(window . event . key code = = 13)nbsp；{ nbspnbspcheck user()；nbsp} }功能nbsp。check user(){ nbsp；if(getId("用戶名")。value==nullnbsp。||nbsp。getId(“用戶名”)。值=