type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause java.lang.NullPointerException
org.apache.jsp.checklogin_jsp._jspService(checklogin_jsp.java:115)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause java.lang.NullPointerException
org.apache.jsp.checklogin_jsp._jspService(checklogin_jsp.java:115)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
应该是某个在页面中要显示的变量为NULL造成的。
checklogin.jsp的错误,估计是你调用了某个对象的属性,致使了空指针的异常
如果你想找到这个错误的具体位置可以在 Tomcat的work文件夹中对应的项目文件下org.apache.jsp.checklogin_jsp.java找到这个类。
的checklogin_jsp.java:115行,自己查看代码,就能分析出错误的原因
具体问题具体解决方法...
action类名字,*为方法名字,一种直接在在配置页面的xml文件或jsp页面中把*.jsp改成*.do,
另一种,比如在action类的execute方法中加入
String method = request.getParameter("method");
ActionForward findForward = null;
if (method.equals("*")) {
findForward = *(mapping, form, request, response);
}
在配置页面的xml文件或jsp页面中把*.jsp改成**.do?method=*
115行 有空引用现象
work目录下找一下看看