Question

jsp,mysql,tomcat配置的系统,用的时候出错了,高人帮忙指点一下~~谢谢!

我在网上下了一个系统,jdk,tomcat都配置正确,没有问题,jdbc不知道该怎么配置,网上找了些也不知道对不对,然后就打开页面,login.jsp显示没有问题,但是点击登录的时候,就会报错..请高手们指点一下,是哪里配置不正确啊~~~~谢谢啦!在线等.

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 48 in the jsp file: /CheckUser.jsp
The method getMessage() is undefined for the type CheckUser
45: <jsp:setProperty name="login" property="password" value="<%=password%>"/>
46:
47: <%
48: message=login.getMessage();//获取返回的验证信息
49: if (message==null) message="";
50: }
51: %>

An error occurred at line: 60 in the jsp file: /CheckUser.jsp
The method getID() is undefined for the type CheckUser
57:
58: if(logrole.equals("teacher")){
59:
60: session.setAttribute("teacherID",login.getID() );
61: //String questions=response.encodeUrl();
62: response.sendRedirect("teacher/index-frames.jsp");
63: }

An error occurred at line: 66 in the jsp file: /CheckUser.jsp
The method getID() is undefined for the type CheckUser
63: }
64: else if(logrole.equals("student")){
65:
66: session.setAttribute("studentID",login.getID());
67: //String questions=response.encodeUrl();
68: response.sendRedirect("student/mainpage/index-frames.jsp");
69: }

An error occurred at line: 72 in the jsp file: /CheckUser.jsp
The method getID() is undefined for the type CheckUser
69: }
70: else if(logrole.equals("admin")){
71:
72: session.setAttribute("adminID",login.getID() );
73: //String questions=response.encodeUrl();
74: response.sendRedirect("admin/index-frames.jsp");
75:

Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:93)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:319)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:298)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:321)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:257)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.29 logs.

Answer 1

你的request里面应该放了一个名为：login的CheckUser类型的变量吧。你查看一下，CheckUser.java这个类中，没有getID()这个方法。自己看一下是不是方法名有误，或者，没有创建。
如果还是有问题，那咱们再继续讨论。

Answer 2

login这个对象似乎来历不明哈…… 可能是JavaBean解析时发生错误。也就是说，login对象不存在某个方法，但是你调用了它，而出现了这个错误。
先确定一下login是否正确实例化了。

Answer 3

没法改，你还是换一个模版吧。
The method getMessage() is undefined for the type CheckUser
The method getID() is undefined for the type CheckUser
大部分都是在说CheckUser找不到定义的方法.

Answer 4

48 in the jsp file: /CheckUser.jsp
这不都告诉你哪错了吗