我在用tomcat5.x,jdk1.5和sql server2000部署应用程序时,程序 无法正常运行,tomcat驱动程序总显示数据库驱动程序注册失败 ，有谁知道驱动程序的安装方法啊，我已经把msutil.jar,mssqlserver.jar,msbase.jar复制到jdk1.5.0_09\jre\lib\ext和Tomcat 5.0\common\lib了，而且环境变量也设置了（classpath为C:\Program Files\Java\jdk1.5.0_09\lib\dt.jar;C:\Program Files\Java\jdk1.5.0_09\lib\tools.jar;C:\Program Files\Altova\xmlspy\XMLSpyInterface.jar;C:\Program Files\Microsoft SQL Server 2000 Driver for JDBC\lib\msbase.jar;C:\Program Files\Microsoft SQL Server 2000 Driver for JDBC\lib\mssqlserver.jar;C:\Program Files\Microsoft SQL Server 2000 Driver for JDBC\lib\msutil.jar），驱动程序是一个叫setup的安装文件，

我写；了

是异常信息，怎么回事呢

谁能帮我解决啊,帮帮忙吧 ,

信息: Tiles definition factory found for request processor ''.
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establis
hing socket.
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source
)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSConnection.<init>(Unknown Source)

at com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown Sou
rce)

at java.lang.Thread.run(Thread.java:595)
数据库驱动程序注册失败
java.lang.NullPointerException
at XiTongGuanLi.YieWuLuoJiCheng.denlu.getName(denlu.java:44)
at XiTongGuanLi.JieMianCheng.denluAction.execute(denluAction.java:21)
at org.apache.struts.action.RequestProcessor.processActionPerform(Reque
tProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.j
va:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:14
2)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525

而且我的java源文件中连接数据库的ip地址也改了，端口也一样，1433，还是不行

打补丁，什么意思，是不是，把那三个.jar文件拷到tomcat和java的相关路径里，