关于servlet的问题
发布servlet
产生如下错误:
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
ContrServlet.doSearch(contrservlet.java:112)
ContrServlet.doPost(contrservlet.java:50)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
是什么原因
谢谢