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客户管理系统运行错误
发表在JavaWeb图书答疑
2006-07-06
是否精华
是
否
版块置顶:
是
否
我的系统是WIN2000错误提示如下:
java.lang.NullPointerException
com.dao.UserDaoImpl.checkUser(UserDaoImpl.java:35)
com.service.UserFacadeImpl.checkUser(UserFacadeImpl.java:28)
com.webtier.manager.UserCheck.perform(UserCheck.java:30)
org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1787)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1586)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:510)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
java.lang.NullPointerException
com.dao.UserDaoImpl.checkUser(UserDaoImpl.java:35)
com.service.UserFacadeImpl.checkUser(UserFacadeImpl.java:28)
com.webtier.manager.UserCheck.perform(UserCheck.java:30)
org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1787)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1586)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:510)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)