我已经上传到Resin做引擎的空间里,但发现有用到数据库的Jsp网页都运行不了,页面提示如下: 500 Servlet Exception java.lang.NullPointerException at _guestbook._index__jsp._jspService(/guestbook/index.jsp:38) at com.caucho.jsp.JavaPage.service(JavaPage.java:75) at com.caucho.jsp.Page.subservice(Page.java:506) at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182) at filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:30) at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88) at com.caucho.server.http.Invocation.service(Invocation.java:315) at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135) at com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:346) at com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java:274) at com.caucho.server.TcpConnection.run(TcpConnection.java:139) at java.lang.Thread.run(Thread.java:534) -------------------------------------------------------------------------------- Resin 2.1.12 (built Tue Dec 9 14:58:25 PST 2003)我在Tomcat做服务器的机器上运行良好. 出现这个错误应该怎么办才好呀。
500 Servlet Exception
java.lang.NullPointerException
at _guestbook._index__jsp._jspService(/guestbook/index.jsp:38)
at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
at com.caucho.jsp.Page.subservice(Page.java:506)
at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
at filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:30)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.caucho.server.http.Invocation.service(Invocation.java:315)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
at com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:346)
at com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java:274)
at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
at java.lang.Thread.run(Thread.java:534)
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Resin 2.1.12 (built Tue Dec 9 14:58:25 PST 2003)我在Tomcat做服务器的机器上运行良好.
出现这个错误应该怎么办才好呀。