h3c msr3020 使用手册:JSP运行出错,请高手帮忙解决一下.

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探针显示是正常的 http://www.fj-commerce.com/1800.jsp

可程序运行却出错,请教一下如何解决.是程序的问题还是环境配置的问题?

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
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.index_jsp._jspService(index_jsp.java:138)
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/5.0.30 logs.

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Apache Tomcat/5.0.30

java.lang.NullPointerException
org.apache.jsp.index_jsp._jspService(index_jsp.java:138)

应该是程序上出错,调用了一个不存在的变量之类的,请查看index_jsp.java第138行

补充上面两人,index_jsp.java是index.jsp翻译成servlet的java文件,去tomcat安装目录\work找

这是因为你的有些变量为NULL所导致的!