HTTP Status 500 – Internal Server Error

Type 异常报告

消息 java.lang.NullPointerException

描述服务器遇到一个意外的情况，阻止它完成请求。

Exception

org.apache.jasper.JasperException: java.lang.NullPointerException
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:598)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:514)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

Root Cause

java.lang.NullPointerException
	mingrisoft.Function.CheckLogin(Function.java:21)
	mingrisoft.Login.LoginCheck(Login.java:28)
	org.apache.jsp.admin.login_jsp._jspService(login_jsp.java:125)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

):注意 主要问题的全部 stack 信息可以在 server logs 里查看