spring data jpa OpenEntityManagerInViewFilter不起作用

silence～ 2017-05-06 02:14:05

org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.emall.entity.Category.childList, could not initialize proxy - no Session

	at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:566)

	at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:186)

	at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:545)

	at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:124)

	at org.hibernate.collection.internal.PersistentSet.toArray(PersistentSet.java:188)

	at com.emall.controller.CategoryController.save(CategoryController.java:34)

	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.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:180)

	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)

	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)

	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)

	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)

	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)

	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)

	at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:178)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)

	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)

	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)

	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)

	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)

	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)

	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)

	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)

	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)

	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)

	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)

	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

	at java.lang.Thread.run(Thread.java:745)