Question

java ee运行的时候出现下面这个问题，是什么意思，怎么改？

HTTP Status 500 -

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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:534)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:457)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
chapter6.Encoding.doFilter(Encoding.java:44)

root cause

java.lang.NullPointerException
org.apache.jsp.updateInfo_jsp._jspService(updateInfo_jsp.java:89)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
chapter6.Encoding.doFilter(Encoding.java:44)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.14 logs.

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Apache Tomcat/7.0.14

Answer 1

http500 内部服务器错误。。

错误已经给你显示出来了呀！
updateInfo_jsp.java 89行出现空指针异常，检查一下看看为什么报空，你没有贴代码无法给你进一步解说。。。

追问

代码太长了，贴不出来。。百度云分享你帮忙看看好吗？谢谢！！
链接：http://pan.baidu.com/s/1pLGOLez 密码：uc9r

Answer 2

空指针异常，代码有错