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当前页面: 开发资料首页J2SE 专题这样的错误是什么问题??description The server encountered an internal error () that prevented it from fulfilling this request....

这样的错误是什么问题??description The server encountered an internal error () that prevented it from fulfilling this request....

摘要: 这样的错误是什么问题??description The server encountered an internal error () that prevented it from fulfilling this request....


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
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:358)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)


root cause

java.lang.NullPointerException
bookshop.run.login.excute(login.java:65)
org.apache.jsp.bookshop.login_jsp._jspService(login_jsp.java:68)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)


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


message
description The server encountered an internal error () that prevented it from fulfilling this request.
消息:
描述 服务器遇到了一个内部错误,这个错误阻止完成正常的请求。



其实在看错误的时间主要是看root cause(也就是错误的起因)
像你遇到的错误java.lang.NullPointerException是空指针异常,这也是经常遇到的异常之一。

有问题你可以加我MSN btb8668@hotmail.com QQ89496823



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