Exception 07 : org.hibernate.LazyInitializationException: could not initialize proxy

异常名称：

org.hibernate.LazyInitializationException: could not initialize proxy - no Session

异常截图：

异常详情：

org.hibernate.LazyInitializationException: could not initialize proxy - no Session

       at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:165)

       at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:286)

       at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185)

       at cn.itsource.hibernate.day01.User_$$_jvst925_0.getUsername(User_$$_jvst925_0.java)

       at cn.itsource.hibernate.day01.CRUDTest.testUpdate1(CRUDTest.java:128)

       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

       at java.lang.reflect.Method.invoke(Method.java:601)

       at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)

       at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)

       at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)

       at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)

       at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)

       at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)

       at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)

       at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)

       at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)

       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)

       at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)

       at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)

       at org.junit.runners.ParentRunner.run(ParentRunner.java:236)

       at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

       at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)

       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)

       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)

       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

 异常原因：延迟加载中Session被提前关闭