ssh中多对多问题

     在做多对多时，报错

    org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.model.Admin.moduleList, no session or session was closed
 at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
 at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
 at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343)
 at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
 at org.hibernate.collection.PersistentList.iterator(PersistentList.java:115)
 at org.apache.taglibs.standard.tag.common.core.ForEachSupport.toForEachIterator(ForEachSupport.java:348)
 at org.apache.taglibs.standard.tag.common.core.ForEachSupport.supportedTypeForEachIterator(ForEachSupport.java:224)
 at org.apache.taglibs.standard.tag.common.core.ForEachSupport.prepare(ForEachSupport.java:155)
 at javax.servlet.jsp.jstl.core.LoopTagSupport.doStartTag(LoopTagSupport.java:256)
 at org.apache.jsp.admin.admin_005fmodify_jsp._jspx_meth_c_005fforEach_005f1(admin_005fmodify_jsp.java:266)
 at org.apache.jsp.admin.admin_005fmodify_jsp._jspx_meth_c_005fforEach_005f0(admin_005fmodify_jsp.java:223)
 at org.apache.jsp.admin.admin_005fmodify_jsp._jspService(admin_005fmodify_jsp.java:162)
 at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
 at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
 at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
 at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
 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.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
 at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
 at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
 at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
 at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
 at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263)
 at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
 at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:318)
 at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
 at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
 at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
 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.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
 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:233)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
 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:286)
 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:447)
 at java.lang.Thread.run(Thread.java:619)

 

 

 

 

对配置加了OpenSessionInViewFilter这个，但是很没有起作用。

在多对多的时候我使用了FetchType.LAZY。延迟加载但没有起作用

配置如下：

web.xml

<filter>
  <filter-name>hibernateFilter</filter-name>
              <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter </filter-class>
      <init-param>
          <param-name>singleSession</param-name>
          <param-value>true</param-value>
      </init-param>
     </filter>
    
     <filter-mapping>
      <filter-name>hibernateFilter</filter-name>
      <url-pattern>/*</url-pattern>
      </filter-mapping>
 
 <listener> 
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
   </listener>
 
 <context-param>
       <param-name> contextConfigLocation </param-name>
       <param-value>
          /WEB-INF/classes/core-config.xml
       </param-value>
    </context-param>
     <servlet>
        <servlet-name> context </servlet-name>
        <servlet-class>
          org.springframework.web.context.ContextLoaderServlet
        </servlet-class>
        <load-on-startup> 1 </load-on-startup>
     </servlet>

 

struts-config.xml中的配置：

 <plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">  
        <set-property property="contextConfigLocation"   
                  value="/WEB-INF/classes/core-config.xml" />  
    </plug-in>

 

请帮我解决一下，是什么原因使得OpenSessionInViewFilter不起作用

 

当要获取莫个延迟加载对象是，可以在获取对象时对延迟加载的那个属性进行初始化就可以了