我有这个tapestry应用程序，我有一个html和一个后端java类，html部分：
<html>
<head>
<title>Starter Page</title>
</head>
<body>
<span jwcid="@Insert" value="ognl: errorMessage" />
<form jwcid="@Form" method="POST" listener="ognl:listeners.filterContracts">
<table style="width: 100%;" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>
<label jwcid='@vitech:Label' element="span" labelOverride="Choose Criteria"/>
</td>
<td>
<select jwcid="criteriaSelect@Select">
<foreach jwcid="@Foreach" source="ognl: criterias" value="ognl:currentCriteria" index="ognl:currentCriteriaIndex">
<option jwcid="@Option" selected="ognl:selection[currentCriteriaIndex]" label="ognl:currentCriteria"/>
</foreach>
</select>
</td>
</tr>
<tr>
<td>
<label jwcid='@vitech:Label' element="span" labelOverride="Criteria Value"/>
</td>
<td>
<input jwcid="@TextField" value='ognl: criteriaValue' />
</td>
</tr>
<tr>
<td>
<label jwcid='@vitech:Label' element="span" labelOverride="Username"/>
</td>
<td>
<input jwcid="@TextField" value='ognl: username' />
</td>
</tr>
<tr>
<td>
<input type="submit" jwcid="getcontract@Submit" label="ognl: 'Get Contracts'" />
</td>
</tr>
</table>
</form>
</body>
java类中的事件监听器filterContracts：
public void filterContracts(IRequestCycle cycle) {
if(cycle.isRewinding()) {
try {
errorMessage = "";
String selectedCriteriaString = cycle.getRequestContext().getRequest().getParameter("criteriaSelect");
MetlinkVisit metlinkVisit = (MetlinkVisit)getEmployerVisit();
int selectedCriteria = Integer.parseInt(selectedCriteriaString);
List<MemberContract> allMemberContractsWithEmployer = loadEmployerBySecurityUser(username);
if(allMemberContractsWithEmployer != null && allMemberContractsWithEmployer.size() > 0) {
FilterMembersContractsByCriteria filter;
List<MemberContract> filteredMembersContractsWithEmployer;
switch(selectedCriteria) {
case 0:
filter = new FilterMembersContractsBySSN();
break;
case 1:
filter = new FilterMembersContractsByLastName();
break;
case 2:
filter = new FilterMembersContractsByGAB();
break;
case 3:
filter = new FilterMembersContractsByCertificate();
break;
default:
filter = new FilterMembersContractsBySSN();
break;
}
filteredMembersContractsWithEmployer = filter.filterAllMembersContractsWithEmployerUsingCriteria(allMemberContractsWithEmployer, criteriaValue);
if(filteredMembersContractsWithEmployer != null && filteredMembersContractsWithEmployer.size() > 0) {
metlinkVisit.setFilteredContracts(filteredMembersContractsWithEmployer);
HttpServletRequest request = cycle.getRequestContext().getRequest();
HttpServletResponse response = cycle.getRequestContext().getResponse();
String uri = request.getRequestURI();
String url = uri + "?un=" + username + "&service=external/Metlink:SummaryPage";
request.getRequestDispatcher(url).forward(request, response);
} else {
errorMessage = "Criteria doesn't match any record, try different criteria";
}
}
}catch (Exception e) {
errorMessage = e.getMessage();
}
}
}
但是当我转到Metlink Summary页面时，我收到此异常，并且此页面正常加载：
Exceptions:
java.io.IOException：已关闭org.eclipse.jetty.server.HttpOutput.write（HttpOutput.java:140）org.eclipse.jetty.server.HttpOutput.write（HttpOutput.java:86）org.apache.tapestry.request .ResponseOutputStream.innerWrite（ResponseOutputStream.java:246）org.apache.tapestry.request.ResponseOutputStream.open（ResponseOutputStream.java:186）org.apache.tapestry.request.ResponseOutputStream.forceFlush（ResponseOutputStream.java:144)org.apache .tapestry.engine.AbstractEngine.service（AbstractEngine.java:928)org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:197)com.vitechinc.core.VitechApplicationServlet.doService(VitechApplicationServlet.java:310)org.apache .tapestry.ApplicationServlet.doPost（ApplicationServlet.java:326)javax.servlet.http.HttpServlet.service(httpServlet.java:727)javax.servlet.http.HttpServlet.service(httpServlet.java:820)org.eclipse.jetty .servlet.ServletHolder.handle（ServletHolder.java:527）org.eclipse.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletH andler.java:1216)org.springframework.web.filter.RequestContextFilter.doFilterInternal（RequestContextFilter.java:83）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:76）org.eclipse.jetty.servlet . ServletHandler $ CachedChain.doFilter（ServletHandler.java:1187）org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal（OpenSessionInViewFilter.java:198）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:76） org.eclipse.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1187）com.vitechinc.v3.core.connectionmanagement.ConnectionSettingsFilter.doFilter（ConnectionSettingsFilter.java:79）org.springframework.web.filter.DelegatingFilterProxy . invokeDelegate（DelegatingFilterProxy.java:236）org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:167）org.eclipse.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1187)org.eclipse . JE tty.servlet.ServletHandler.doHandle（ServletHandler.java:421）org.eclipse.jetty.server.handler.ScopedHandler.handle（ScopedHandler.java:119）org.eclipse.jetty.security.SecurityHandler.handle（SecurityHandler.java： 493）org.eclipse.jetty.server.session.SessionHandler.doHandle（SessionHandler.java:225）org.eclipse.jetty.server.handler.ContextHandler.doHandle（ContextHandler.java:930）org.eclipse.jetty.servlet . ServletHandler.doScope（ServletHandler.java:358）org.eclipse.jetty.server.session.SessionHandler.doScope（SessionHandler.java:183）org.eclipse.jetty.server.handler.ContextHandler.doScope（ContextHandler.java:866） org.eclipse.jetty.server.handler.ScopedHandler.handle（ScopedHandler.java:117）org.eclipse.jetty.server.handler.HandlerWrapper.handle（HandlerWrapper.java:113）org.eclipse.jetty.server.Server . handle（Server.java:351）org.eclipse.jetty.server.HttpConnection.handleRequest（HttpConnection.java:594）org.eclipse.jetty.server.HttpConnection $ RequestHandler.content（HttpConnection.java:1058）org .eclipse.jetty.http.HttpParser.parseNext（HttpParser.java:764）org.eclipse.jetty.http.HttpParser.parseAvailable（HttpParser.java:217）org.eclipse.jetty.server.HttpConnection.handle（HttpConnection.java） ：424）org.eclipse.jetty.io.nio.SelectChannelEndPoint.run（SelectChannelEndPoint.java:489）org.eclipse.jetty.util.thread.QueuedThreadPool $ 2.run（QueuedThreadPool.java:436)java.lang.Thread . 运行（Thread.java:662）
我想在倒带周期中有些问题