Folowing是我的location.hbm.xml文件
<hibernate-mapping package="ca.ups.tundra.model">
<class name="Location" table="LOCATION">
<id name="id" access="field" type="long">
<generator class="native"/>
</id>
<version name="version" access="field" column="VERSION" type="long"/>
<property name="slic" type="string" column="SLIC" length="5" not-null="true"/>
<property name="pkgSlic" type="string" column="PKGSLIC" length="5" not-null="true"/>
<property name="name" type="string" column="NAME" length="30" not-null="true"/>
<set name="groups" table="LOCATIONGROUPS" cascade="save-update" access="field">
<key column="LOCATION_ID"/>
<many-to-many class="LocationGroup" column="GROUP_ID"/>
</set>
<set name="fEvents" table="FTP_SCAN_EVENTS" inverse="true" lazy="true" fetch="select" cascade="save-update, delete">
<key column ="LOCATION_ID" not-null="true" />
<one-to-many class="FtpScanEvents" />
</set>
</class>
</hibernate-mapping>
以下是我的ftpscanevents.hbm.xml
<hibernate-mapping package="ca.ups.tundra.model">
<class name="FtpScanEvents" table="FTP_SCAN_EVENTS">
<id name="id" type="long">
<generator class="native"/>
</id>
<many-to-one name="location" class="Location" fetch="select" cascade="save-update, delete">
<column name="LOCATION_ID" not-null="true" />
</many-to-one>
<property name="hostName" type="string" length="200" column="HOSTNAME"/>
<property name="directory" type="string" length="200" column="DIRECTORY"/>
<property name="userName" type="string" length="20" column="USERNAME"/>
<property name="password" type="string" length="20" column="PASSWORD"/>
</class>
</hibernate-mapping>
我的location.java
public class Location extends Persistent implements Serializable {
private String slic;
private String pkgSlic;
private String name;
Set<LocationGroup> groups = new HashSet<LocationGroup>();
private Set<FtpScanEvents> fEvents = new HashSet<FtpScanEvents>();
//getters and setters
}
FtpScanEvents.java
public class FtpScanEvents extends Persistent implements Serializable{
private String hostName;
private String directory;
private String userName;
private String password;
private Location location;
//getters and setters
}
我的Jsp，我想在这两个表中显示值;
<form:form name="f" action="${flowExecutionUrl}" modelAttribute="location">
<table>
<tr>
<th colspan="3">Location Add/Edit</th>
</tr>
<tr>
<td>Location Name</td>
<td><form:input path="name" size="30" maxlength="30" onkeypress="return lowerUpperLetterNumberDashPeriodSpaceEnterOnly();"/></td>
<td class="error"><form:errors path="name"/></td>
</tr>
<tr>
<td>Port Code</td>
<td><form:input path="slic" size="30" maxlength="5" onkeypress="return toUpperLetterNumberOnly();"/></td>
<td class="error">
<form:errors path="slic"/>
<c:if test="${not empty duplicateLocationMessageKey}">
<p><fmt:message key="${duplicateLocationMessageKey}"/></p>
</c:if>
</td> </tr> <tr>
<td>Pkg. SLIC</td>
<td><form:input path="pkgSlic" size="30" maxlength="5" onkeypress="return toUpperLetterNumberOnly();"/></td>
<td class="error">
<form:errors path="pkgSlic"/>
<c:if test="${not empty duplicateLocationMessageKey}">
<p><fmt:message key="${duplicateLocationMessageKey}"/></p>
</c:if>
</td> </tr>
<tr><td colspan="4">
<table>
<tr><td>Host Name</td><td>Directory</td><td>User Name</td><td>Password</td></tr>
<tr><td><form:input path="fEvents.hostName" id="hostName" size="30" maxlength="200"/></td>
<td><form:input path="fEvents.directory" id="directory" value="" size="30" maxlength="200"/></td>
<td><form:input path="fEvents.userName" id="userName" value="" size="20" maxlength="20"/></td>
<td><form:input path="fEvents.password" id="password" value="" size="20" maxlength="20"/></td>
<td><input type="button" id="delete" onclick="if(confirm( 'Do you want to delete')) deleteRow(this);" value="-" /></td></tr>
</table>
</td></tr>
</table>
</form:form>
当我运行我的应用程序并导航到location.jsp时。我收到了以下错误：
SEVERE: Servlet.service() for servlet jsp threw exception
ognl.NoSuchPropertyException: org.hibernate.collection.PersistentSet.hostName
at ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:122)
at ognl.SetPropertyAccessor.getProperty(SetPropertyAccessor.java:60)
at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1657)
at ognl.ASTProperty.getValueBody(ASTProperty.java:92)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTChain.getValueBody(ASTChain.java:109)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.Ognl.getValue(Ognl.java:333)
at org.springframework.binding.expression.ognl.OgnlExpression.getValue(OgnlExpression.java:85)
at org.springframework.webflow.mvc.view.BindingModel.getFormattedValue(BindingModel.java:240)
at org.springframework.webflow.mvc.view.BindingModel.getFieldValue(BindingModel.java:141)
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:172)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:192)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:158)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:121)
at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:379)
at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:139)
at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:90)
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:77)
at org.apache.jsp.WEB_002dINF.jsp.Location_jsp._jspx_meth_form_005finput_005f10(Location_jsp.java:2398)
at org.apache.jsp.WEB_002dINF.jsp.Location_jsp._jspService(Location_jsp.java:653)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:236)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:257)
at org.springframework.webflow.mvc.servlet.ServletMvcView.doRender(ServletMvcView.java:50)
at org.springframework.webflow.mvc.view.AbstractMvcView.render(AbstractMvcView.java:180)
at org.springframework.webflow.engine.ViewState.render(ViewState.java:282)
at org.springframework.webflow.engine.ViewState.doEnter(ViewState.java:186)
at org.springframework.webflow.engine.State.enter(State.java:194)
at org.springframework.webflow.engine.Flow.start(Flow.java:535)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.start(FlowExecutionImpl.java:364)
at org.springframework.webflow.engine.impl.RequestControlContextImpl.start(RequestControlContextImpl.java:234)
at org.springframework.webflow.engine.SubflowState.doEnter(SubflowState.java:101)
at org.springframework.webflow.engine.State.enter(State.java:194)
at org.springframework.webflow.engine.Transition.execute(Transition.java:227)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.execute(FlowExecutionImpl.java:391)
at org.springframework.webflow.engine.impl.RequestControlContextImpl.execute(RequestControlContextImpl.java:214)
at org.springframework.webflow.engine.TransitionableState.handleEvent(TransitionableState.java:119)
at org.springframework.webflow.engine.Flow.handleEvent(Flow.java:555)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.handleEvent(FlowExecutionImpl.java:386)
at org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210)
at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:230)
at org.springframework.webflow.engine.ViewState.resume(ViewState.java:196)
at org.springframework.webflow.engine.Flow.resume(Flow.java:545)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.resume(FlowExecutionImpl.java:259)
at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:169)
at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:174)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
如何摆脱这种情况并使其发挥作用...我的控制器应该如何......
答案 0 :(得分：0)
fEvents是Set<FtpScanEvents>，根据您的要求，它肯定没有属性hostName：
<form:input path="fEvents.hostName" ... />
如果要将集合绑定到Spring MVC表单，则需要迭代它并绑定每个项目，如下所示：
<c:forEach items="${fEvents}" var="event" varStatus="status" >
... <form:input path="fEvents[${status.index}].hostName" ... /> ...
</c:forEach>
但请注意you cannot use this approach with Set。您应该将fEvents的类型更改为List<FtpScanEvents>，或将表单绑定到对该属性使用List的DTO。