获得客户端真实IP地址的方法 publicStringgetIpAddr(HttpServletRequestrequest){Stringip=request.getHeader("x-forwarded-for");if(ip==null||ip.length()==0||"unknown".equalsIgnoreCase(ip)){ip=request.getHeader("Proxy-C...

JSP获取客户端IP的方法 request.getRemoteAddr();获得客户端真实IP地址的方法一：publicStringgetRemortIP(HttpServletRequestrequest){ if(request.getHeader("x-forwarded-for")==null){ returnrequest.getRemoteAddr(); } returnrequest...

用jdbc连接sybase，连接不上我是这么写的：importjava.sql.*;importjava.util.*;publicclasstestJDBC{ publicstaticvoidmain(String[]args)throwsException{ Class.forName("com.sybase.jdbc3.jdbc.SybDriver").newInst...

用jdbc连接sybase，连接不上我是这么写的：importjava.sql.*;importjava.util.*;publicclasstestJDBC{ publicstaticvoidmain(String[]args)throwsException{ Class.forName("com.sybase.jdbc3.jdbc.SybDriver").newInstance(); S...

centos6下jira问题jira安装完成后访问http://localhost：8089出来个页面填写完里面的东西后登陆jira就报错了再访问http://localhsot:8089也是一样报错信息如下：Cause:java.lang.NullPointerExceptionStackTrace:[hide]java.lang.NullPointerException atcom.atlas...

连接数据源问题? importjavax.naming.*;importjava.sql.*;importjavax.sql.*; publicclassTest{publicstaticvoidmain(String[]args){try{Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");Con...

solaris查看cpu信息命令#uname-mi86pc#uname-snrvmapiXSunOSzjuam.zju.edu.cn5.10Generic_127128-11i86pci386i86pcSystem=SunOSNode=zjuam.zju.edu.cnRelease=5.10KernelID=Generic_127128-11Machine=i86pcBusType=<unk...

Achildcontainerfailedduringstart2012-5-1311:56:22org.apache.catalina.core.ContainerBasestartInternal严重:Achildcontainerfailedduringstartjava.util.concurrent.ExecutionException:org.apache.catalina.Lifec...

远程连接数据库，急急急！！！！！！！我想在公司的机子上用rmi+java直接连接另外一个公司的数据库,我把数据库连接放在远程调用的方法里，运行后老出现以下错误：java.sql.SQLException:[Microsoft][SQLServer2000DriverforJDBC]Erroropening/loadingcom.microsoft.util.transliteration.prop...

求助？sql列名无效rs=stat.executeQuery("SELECT*FROMuserswhereusers.username="+uname);出现列名无效。整个程序为：importjava.sql.*;publicclassDB{ publicstaticvoidmain(String[]args){ Stringurl="jdbc:microsoft:...

JApplet可以在appletViewer中查看…却不能在HTML中运行…求解……Javacodepackageapplet;importjavax.swing.*;publicclassTESTextendsJApplet{publicvoidinit(){add(newJLabel("TestApplet",JLabel.CENTER));}}HTMLcode<HT...

请大家帮个忙，关于eclipse启动tomcat报错的问题。java.security.AccessControlException:accessdenied(java.lang.RuntimePermissionaccessDeclaredMembers) atjava.security.AccessControlContext.checkPermission(UnknownSource) at...

数据库结果集的问题，哪位大侠看看。。。JavacodepublicList<LetterInfo>letterInfosByletterReceiver(intpage,StringletterReceiver){if(page<1){page=1;}elseif(page>this.getInboxMaxPage(letterReceiver)){page=this.ge...

Eclipse这段错误代码到底说的什么意思 2007-7-2314:46:28org.apache.tomcat.util.digester.DigesterfatalError严重:ParseFatalErroratline1column14:Attributename"path"associatedwithanelementtype"Context"mustbefo...

CORBA应用（JacORB）部署在win2008server遇到的问题同样的配置，部署在win7上没有问题，但是部署在win2008server时报错如下：十二月07,20137:00:23下午com.sun.corba.se.spi.orb.OperationFactory$ClassActionoperate警告:"IOP00110208:(BAD_PARAM)Couldnotloadcla...

java连接超时try{ URLurl=newURL("http://www.baidu.com/"); HttpURLConnectionconnection=(HttpURLConnection)url.openConnection(); connection.connect(); }catch(IOExceptione){ e.printStackTra...

有谁用移动的API弄过彩信开发?这个网关模拟器MMSCSimulation.exe应该如何配置才能正常运行?我用中兴的MM7API试过,用华为的VAS-API也试了,DEMO程序怎么运行都是报这种错误,看起来像通讯问题吧.java.net.SocketException:Unexpectedendoffilefromserver atsun.net.www.http.HttpClient.pars...

求助Couldnotfindthemainclass.Programwillexit.-->myeclipse我在myeclipse5.5运行一个任何main方法(jdk1.6)：packagemy.test;publicclassCC{publicstaticvoidmain(String[]args){System.out.println("aaaaaaaaaa");...

java.io.IOException:Corruptformdata:prematureending用Servlet上传文件时出现如题异常，异常详细内容如下HTTPStatus500---------------------------------------------typeExceptionreportmessagedescriptionTheserverencounteredaninte...

这个异常是什么意思呢????急求回答....2007-4-2410:37:16org.apache.coyote.http11.Http11Protocolinit信息:InitializingCoyoteHTTP/1.1onhttp-80802007-4-2410:37:16org.apache.catalina.startup.Catalinaload信息:Initializationproc...