我写了个Action,传参数，执行SQL语句，出现以下错误，大家....

jessicawly

2014-07-07 18:22:44 action:<?xml version="1.0" encoding="UTF-8"?>
<action direct-execute="false" process="/LLWL/ZCYH/process/ZCYH/zCYHProcess" activity="staticActivity" action-flag="__action_0__" executor="" execute-context="" name="ZCYHDZ"><parameters xmlns:xbiz="http://www.justep.com/xbiz#"><parameter name="CompanyName"><xbiz:simple type="http://www.w3.org/2001/XMLSchema#String"><![CDATA[FF]]></xbiz:simple></parameter><parameter name="Code"><xbiz:simple type="http://www.w3.org/2001/XMLSchema#String"><![CDATA[FF]]></xbiz:simple></parameter><parameter name="Name"><xbiz:simple type="http://www.w3.org/2001/XMLSchema#String"><![CDATA[FF]]></xbiz:simple></parameter></parameters></action>
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:592)
        at com.justep.system.action.Engine.invokeActions(Native Method)
        at com.justep.system.action.Engine.invokeActions(Unknown Source)
        at com.justep.business.server.BusinessServer.doAction(Unknown Source)
        at com.justep.business.server.BusinessServer.doExcute(Unknown Source)
        at com.justep.business.server.BusinessServer.excute(Unknown Source)
        at com.justep.business.server.BusinessServerServlet.execService(Unknown Source)
        at com.justep.business.server.BusinessServerServlet.service(Unknown Source)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at com.justep.x.bs.BusinessServerServlet.service(Unknown Source)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
        at ZCYH.ZCYHDZ(ZCYH.java:42)
        ... 26 more

fpj

查检 ZCYH.java 42行写是什么代码，怎么会报空指针错误呢？

你可以自己进行调试一下，设一下断点；

你也可以将你的TOMCAT中详细信息贴一下，再就是你的相关的代码。

腹部流出的肉

后台对象一定不要忘记判空