程序出错 帮帮忙啊！

来源：百度知道 编辑：UC知道 时间：2024/05/15 15:09:50
type Exception report

message

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

exception

org.apache.jasper.JasperException: java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:541)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:435)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

root cause

java.lang.NullPointerException
org.apache.jsp.login_jsp._jspService(login_jsp.java:83)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.

root cause

java.lang.NullPointerException
org.apache.jsp.login_jsp._jspService(login_jsp.java:83)

你的错误是jsp编译错误！
在你login.jsp中遇到空值(Null)。即调用一个为初始化的对象的方法或者成员。
正确初始化相应对象即可，出错位置可能是在login.jsp 83行中