在JSP+Tomcat3.3.1+Mysql环境中，连接数据库时出错，急！！！

class设置:
classpath=.;%JAVA_HOME%bin;%JAVA_HOME%jrebin;d:tomcat3.3.1lib;

jdbc文件位置：
d:tomcat3.3.1libmm.mysql-2.0.14-bin.jar

jsp代码：
...
java.lang.String strCon; 
Class.forName("org.gjt.mm.mysql.Driver").newInstance(); 
sqlCon= java.sql.DriverManager.getConnection("jdbc:mysql://localhost/cwt"); 
...

错误信息：
Error: 500
Location: /myweb/cwt/manager/techadd.jsp
Internal Servlet Error:

javax.servlet.ServletException: org.gjt.mm.mysql.Driver
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:460)
at cwt.manager.techadd_3._jspService(techadd_3.java:218)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java:574)
at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
at org.apache.tomcat.core.Handler.service(Handler.java:235)
at org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:485)
at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:917)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:833)
at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10Interceptor.java:176)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:494)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:516)
at java.lang.Thread.run(Thread.java:536)
Root cause:
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
at org.apache.tomcat.util.depend.DependClassLoader.loadClassInternal1(DependClassLoader.java:186)
at org.apache.tomcat.util.depend.DependClassLoader12$1.run(DependClassLoader12.java:92)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.tomcat.util.depend.DependClassLoader12.loadClass(DependClassLoader12.java:90)
at java.lang.ClassLoader.loadClass(ClassLoader.java:262)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:322)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:130)
at cwt.manager.techadd_3._jspService(techadd_3.java:77)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java:574)
at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
at org.apache.tomcat.core.Handler.service(Handler.java:235)
at org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:485)
at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:917)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:833)
at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10Interceptor.java:176)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:494)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:516)
at java.lang.Thread.run(Thread.java:536)

jsp连接MySQL数据库  
testmysql.jsp如下：  
    
  
    
    
    
您的第一个字段内容为：    
您的第二个字段内容为：    
    
    
    
    
  

Class.forName("org.gjt.mm.mysql.Driver");
Connection sqlCon= DriverManager.getConnection("jdbc:mysql://localhost:3306/cwt",username,passwd); 
默认情况下Mysql的端口是3306.

Class.forName("org.gjt.mm.mysql.Driver").newInstance();
     sqlCon== DriverManager.getConnection("jdbc:mysql://ip:://localhost:3306/cwt?user=你的用户名&password=你的密码&useUnicode=true&characterEncoding=gb2312");

http://expert.csdn.net/Expert/FAQ/FAQ_Index.asp?id=15371