struts1,nested标签的问题(疯了）

Question

java.lang.ArrayIndexOutOfBoundsException
at java.lang.reflect.Array.get(Native Method)
at org.apache.struts.action.DynaActionForm.get(DynaActionForm.java:252)
at org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(PropertyUtils.java:474)
at org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(PropertyUtils.java:428)
at org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyUtils.java:750)
at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:801)
at org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:881)
at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:808)
at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:495)
at org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:798)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:205)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.gewt.sop.web.SOPActionFilter.doFilter(SOPActionFilter.java:217)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:595)在数据提交的时候出的异常，是在Struts1.x把数据自动封装到动态表单的时候出的异常吧，页面上是这样的结构
<nested:iterate>
<nested:iterate>
</nested:iterate>
<nested:iterate>
</nested:iterate>
</nest:iterate><form-bean name="jobDetailForm" type="org.apache.struts.action.DynaActionForm">
      <form-property name="sreport" type="com.gewt.sop.model.ServiceReport[]" />
其中，ServiceReport 里有 ReportTimesheet[] 这个类的数组哪位大神出来解决一下哈,在线等

Answer 1

java.lang.ArrayIndexOutOfBoundsException 提交的数据貌似超过你定义的数组的大小
不明真相，透露多点吧

Answer 2

<%//int k=-1; %>
<nested:present property="sreport" name="jobDetailForm">
<nested:iterate  property="sreport" name="jobDetailForm" type="com.gewt.sop.model.ServiceReport" indexId="k" >
 <%// k++; 
 String onchangemethd = "delServHrsRow(" + (k) +");";
// ServRequestForSearch searchObj = (ServRequestForSearch)pageContext.getAttribute("serReqForSearch");
 //ServiceReport sreportOne = (ServiceReport)pageContext.getAttribute("sreport1");
 //ReportTimesheet[] timesheets = searchObj.getOneWeekTimeSheet();
 //ReportTimesheet[] timesheets = sreportOne.getOneWeekTimeSheet();
 //pageContext.setAttribute("timesheets",sreportOne.getOneWeekTimeSheet());
 //int timesheetInx1 = -1;
 //int timesheetInx2 = -1;
 %>

<tr>

<nested:hidden property="serviceRequestId" ></nested:hidden>
<nested:hidden property="reportId" ></nested:hidden>
<td align=center rowspan=2><nested:write  property="signCustomerName"/></td>
<td align=center rowspan=2><nested:write  property="shipToN" /></td>
<td align=center rowspan=2><nested:write  property="peId" />&nbsp&nbsp</td>
<td align=center>
<!-- Services -->
<%=sopProperties.getString("submitAMReport.Services") %>
</td>

<nested:iterate  property="oneWeekTimeSheet"  type="com.gewt.sop.model.ReportTimesheet" indexId="timesheetInx1">
<%
//timesheetInx1++;
 %>


<td>
 
<nested:hidden property="serviceRequestId" ></nested:hidden>
<nested:hidden property="entryId" ></nested:hidden>
<nested:hidden property="serviceDateStr" ></nested:hidden>
<nested:text property="travelDuration"  styleClass="width: 22px"></nested:text>
<%-- 
<input type="hidden" name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx1 %>].serviceRequestId" value="<nested:write  property="serviceRequestId"/>"/>
<input type="hidden" name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx1 %>].serviceDateStr" value="<nested:write  property="serviceDateStr"/>" />
<input type="hidden" name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx1 %>].entryId" value="<%=timesheetInx1 %>"  />
<input type='text'   name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx1 %>].travelDuration" value="<nested:write  property="travelDuration"/>" style='width:22px;'/>
--%>

</td>
</nested:iterate>

<td>
<input type="text" value=0 style="width: 22px"/>
</td>

<td rowspan=2>
<input type="button" value="Delete" />
</td>

</tr>

<tr>

<td align=center>
<!-- New Prospect Sales -->
<%=sopProperties.getString("submitAMReport.NewProspectSales")%>
</td>
<nested:iterate  property="oneWeekTimeSheet"  type="com.gewt.sop.model.ReportTimesheet" indexId="timesheetInx2">
<%
//timesheetInx2++;
 %>


<td>
<nested:hidden property="serviceRequestId" ></nested:hidden>
<nested:hidden property="entryId" ></nested:hidden>
<nested:hidden property="serviceDateStr" ></nested:hidden>
<nested:text property="travelDuration" styleClass="width: 22px"></nested:text>
<%-- 
<input type="hidden" name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx2 %>].serviceRequestId" value="<nested:write  property="serviceRequestId"/>"/>
<input type="hidden" name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx2 %>].serviceDateStr" value="<nested:write  property="serviceDateStr"/>" />
<input type="hidden" name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx2 %>].entryId" value="<%=timesheetInx2 %>"  />
<input type='text' name="sreport[<%=k %>].oneWeekTimeSheet[<%=timesheetInx2 %>].laborDuration" value="<nested:write  property="laborDuration"/>" style='width:22px;'/>
</td>
--%>
</nested:iterate>

<td>
<input type="text" value=0 style="width: 22px"/>
</td>
</tr>

</nested:iterate>
</nested:present>

Answer 3

java.lang.ArrayIndexOutOfBoundsException;
这句错误的意思是数组越界！！

Answer 4

sreport oneWeekTimeSheet 在FORM里没有初始化，在FORM的构造函数里new一下就好了，但是类型一定要匹配。
<nested:iterate  property="“>iterate的property里的东西，在FORM的构造函数里必须初始化。

Answer 5

你使用迭代的时候，迭代的数组或者集合是null。