The server encountered an internal error () that prevented it from fulfilling this request.exception java.lang.NullPointerException
org.apache.struts.action.RequestProcessor.getInternal(RequestProcessor.java:1129)
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:528)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
这是怎么了,我用的sql  2005  jdbc驱动连接数据库,hibernate+stryts框架