Spring Webflow - 動作執行異常

Calling a function from Spring Webflow to store in Database(MySQL)

我編輯的removeAllCartItemsCart方法本

public void removeAllCartItemsCart(Cart cart) { 
     List<CartItem> cartItems = cart.getCartItems(); 

     Session session = sessionFactory.getCurrentSession(); 
     int cusid=cart.getCustomer().getCustomerId(); 

     for (CartItem item : cartItems) { 
      int pid=item.getProduct().getProductId(); 
      Query query=session.createQuery("from ProcessOrder where customerid= ? and productid= ? and status1=? and status=?"); 
      query.setInteger(0, cusid); 
      query.setInteger(1, pid); 
      query.setInteger(2, 0); 
      query.setInteger(3, 1); 
      ProcessOrder pOrder1 =(ProcessOrder) query.uniqueResult(); 
      if(pOrder1!=null){ 
       pOrder1.setStatus1(4); 
       session.saveOrUpdate(pOrder1); 
      } 
      Query query1=session.createQuery("from Product where productid= ?"); 
      query1.setInteger(0, pid); 
      Product prod =(Product) query1.uniqueResult(); 
      if(prod!=null){ 
       int quant=item.getQuantity(); 

       int quant1=item.getProduct().getUnitInStock(); 
       prod.setUnitInStock(quant1-quant); 
       session.saveOrUpdate(prod); 
      } 
      //query.executeUpdate(); 
      removeCartItem(item); 
     } 
    }

我得到以下堆棧跟蹤異常。

堆棧跟蹤由於允許的字符數增加而被刪除。

我在做什麼錯？

UPDATE 1

這是建議的更改後的堆棧跟蹤。

SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/emusicstore] threw exception [Request processing failed; nested exception is org.springframework.webflow.execution.ActionExecutionException: Exception thrown executing [[email protected] targetAction = [[email protected] expression = cartItemDaoImpl.removeAllCartItemsCart(order.cart), resultExpression = [null]], attributes = map[[empty]]] in state 'processOrder' of flow 'checkout' -- action execution attributes were 'map[[empty]]'] with root cause 
org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.emusicstore.model.CartItem#3] 
    at org.hibernate.engine.internal.StatefulPersistenceContext.checkUniqueness(StatefulPersistenceContext.java:650) 
    at org.hibernate.event.internal.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:119) 
    at org.hibernate.event.internal.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:74) 
    at org.hibernate.internal.SessionImpl.fireDelete(SessionImpl.java:822) 
    at org.hibernate.internal.SessionImpl.delete(SessionImpl.java:801) 
    at com.emusicstore.dao.impl.CartItemDaoImpl.removeCartItem(CartItemDaoImpl.java:35) 
    at com.emusicstore.dao.impl.CartItemDaoImpl.removeAllCartItemsCart(CartItemDaoImpl.java:73) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) 
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
    at com.sun.proxy.$Proxy61.removeAllCartItemsCart(Unknown Source) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:112) 
    at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:129) 
    at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:49) 
    at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:342) 
    at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:88) 
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:131) 
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:299) 
    at org.springframework.binding.expression.spel.SpringELExpression.getValue(SpringELExpression.java:84) 
    at org.springframework.webflow.action.EvaluateAction.doExecute(EvaluateAction.java:75) 
    at org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:188) 
    at org.springframework.webflow.execution.AnnotatedAction.execute(AnnotatedAction.java:145) 
    at org.springframework.webflow.execution.ActionExecutor.execute(ActionExecutor.java:51) 
    at org.springframework.webflow.engine.ActionState.doEnter(ActionState.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:393) 
    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:388) 
    at org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210) 
    at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:232) 
    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:258) 
    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:943) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) 
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344) 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261) 
    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:222) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) 
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745)

此外，行號33處的removeCartItem如下。在行號的一些錯誤的堆棧跟蹤會談35

public void removeCartItem (CartItem cartItem) { 
     Session session = sessionFactory.getCurrentSession(); 
     session.delete(cartItem); 
     session.flush(); 
    }

更新2

SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/emusicstore] threw exception [Request processing failed; nested exception is org.springframework.webflow.execution.ActionExecutionException: Exception thrown executing [[email protected] targetAction = [[email protected] expression = cartItemDaoImpl.removeAllCartItemsCart(order.cart), resultExpression = [null]], attributes = map[[empty]]] in state 'processOrder' of flow 'checkout' -- action execution attributes were 'map[[empty]]'] with root cause 
org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.emusicstore.model.Cart#1] 
    at org.hibernate.engine.internal.StatefulPersistenceContext.checkUniqueness(StatefulPersistenceContext.java:650) 
    at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:293) 
    at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:239) 
    at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:109) 
    at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90) 
    at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:615) 
    at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:608) 
    at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:604) 
    at com.emusicstore.dao.impl.CartItemDaoImpl.removeAllCartItemsCart(CartItemDaoImpl.java:73) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) 
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
    at com.sun.proxy.$Proxy61.removeAllCartItemsCart(Unknown Source) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:112) 
    at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:129) 
    at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:49) 
    at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:342) 
    at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:88) 
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:131) 
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:299) 
    at org.springframework.binding.expression.spel.SpringELExpression.getValue(SpringELExpression.java:84) 
    at org.springframework.webflow.action.EvaluateAction.doExecute(EvaluateAction.java:75) 
    at org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:188) 
    at org.springframework.webflow.execution.AnnotatedAction.execute(AnnotatedAction.java:145) 
    at org.springframework.webflow.execution.ActionExecutor.execute(ActionExecutor.java:51) 
    at org.springframework.webflow.engine.ActionState.doEnter(ActionState.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:393) 
    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:388) 
    at org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210) 
    at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:232) 
    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:258) 
    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:943) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) 
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344) 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261) 
    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:222) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) 
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745)

來源

2017-05-22 user3508140

我覺得你的問題是，你需要從收集您的購物車中刪除cartItem以及之前，你可以將其刪除：

Iterator<CartItem> cartIterator = cart.getCartItems().iterator(); 
while (cartIterator.hasNext()) { 
    CartItem item = cartIterator.next(); 
    int pid=item.getProduct().getProductId(); 
    Query query=session.createQuery("from ProcessOrder where customerid= ? and productid= ? and status1=? and status=?"); 
    query.setInteger(0, cusid); 
    query.setInteger(1, pid); 
    query.setInteger(2, 0); 
    query.setInteger(3, 1); 
    ProcessOrder pOrder1 =(ProcessOrder) query.uniqueResult(); 
    if(pOrder1!=null){ 
     pOrder1.setStatus1(4); 
     session.saveOrUpdate(pOrder1); 
    } 
    Query query1=session.createQuery("from Product where productid= ?"); 
    query1.setInteger(0, pid); 
    Product prod =(Product) query1.uniqueResult(); 
    if(prod!=null){ 
     int quant=item.getQuantity(); 
     int quant1=item.getProduct().getUnitInStock(); 
     prod.setUnitInStock(quant1-quant); 
     session.saveOrUpdate(prod); 
    } 
    //query.executeUpdate(); 
    cartIterator.remove(); 
    session.saveOrUpdate(cart); 
    removeCartItem(item); 
}

看起來從你的設計，CartItem不能單獨存在，所以我也建議增加orphanRemoval = true關於Cart和CartItem之間的關係。

@OneToMany(mappedBy = "cart", cascade = CascadeType.ALL, fetch = FetchType.EAGER, orphanRemoval = true)

來源

2017-05-22 11:47:31 rptmat57

我不認爲這是問題所在。因爲只有在向方法添加第二個查詢時發生此異常。我很確定它與此有關。 – user3508140

你試過了嗎？從堆棧跟蹤看起來它來自刪除 – rptmat57

如何創建迭代器？ – user3508140

Spring Webflow - 動作執行異常

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