java web程序，打开页面时出现了HTTP Status 500 问题
这是具体情况，拜托诸位大神看看怎么回事typeExceptionreportmessagedescriptionTheserverencounteredaninterna...
这是具体情况，拜托诸位大神看看怎么回事
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerExceptioncontroller.ApplicationControllerServlet.service(ApplicationControllerServlet.java:25)javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.13 logs. 展开
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerExceptioncontroller.ApplicationControllerServlet.service(ApplicationControllerServlet.java:25)javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.13 logs. 展开
展开全部
空指针异常，tomcat没有启动，导入Servlet包试试
追问
有导入 javax.servlet.http.HttpServletRequest，还缺什么么
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空指针异常,忘倒什么包了 吧
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