tomcat做报表服务器经常报错

HTTP Status 500 – Servlet execution threw an exception

type Exception report

message Servlet execution threw an exception

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

exception

javax.servlet.ServletException: Servlet execution threw an exception
root cause

java.lang.NoClassDefFoundError: com/fr/web/core/ErrorHandlerHelper
com.fr.web.BaseServlet.doGet(Unknown Source)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.39 logs.

回答

java.lang.NoClassDefFoundError: com/fr/web/core/ErrorHandlerHelper
这类缺少类的问题，估计是每次运行都报错吧，除非你动态加载了其他的jar包

最要还是看缺少的类在哪里，只要补全就好了

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