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客户管理系统出现问题
发表在JavaWeb图书答疑
2008-05-24
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<H1>HTTP Status 500 - </H1>
<HR noShade SIZE=1>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>type</FONT></B> Exception report</P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>message</FONT></B> <U></U></P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>description</FONT></B> <U>The server encountered an internal error () that prevented it from fulfilling this request.</U></P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>exception</FONT></B> <PRE>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)
</PRE>
<P></P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>note</FONT></B> <U>The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.</U></P>
<P>
<HR noShade SIZE=1>
SQL2KSP4的补丁已经装上，但是还是出现这种问题，请高手指点。</P>
<P>tomcat5.0 win2000</P>
<HR noShade SIZE=1>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>type</FONT></B> Exception report</P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>message</FONT></B> <U></U></P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>description</FONT></B> <U>The server encountered an internal error () that prevented it from fulfilling this request.</U></P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>exception</FONT></B> <PRE>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)
</PRE>
<P></P>
<P><B><FONT style="BACKGROUND-COLOR: #525d76" color=#ffffff>note</FONT></B> <U>The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.</U></P>
<P>
<HR noShade SIZE=1>
SQL2KSP4的补丁已经装上，但是还是出现这种问题，请高手指点。</P>
<P>tomcat5.0 win2000</P>
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