Spring-data-jpa 集成Hibernate时延迟加载问题

    @GetMapping("/teachers/{id}")    @Timed    public ResponseEntity<Teacher> getTeacher(@PathVariable Long id) {        log.debug("REST request to get Teacher : {}", id);        Teacher teacher = teacherRepository.findOne(SecurityUtils.getCurrentUserId());        teacher.getAddresses().size();    --------此处代码        return ResponseUtil.wrapOrNotFound(Optional.ofNullable(teacher));    }

当在OneToMany关系中手动触发延迟加载对象时出以下错误

2017-09-13 23:33:51.859 ERROR 5392 --- [  XNIO-3 task-1] com.zhile.aop.logging.LoggingAspect      : Exception in com.zhile.web.rest.TeacherResource.getTeacher() with cause = 'NULL' and exception = 'failed to lazily initialize a collection of role: com.zhile.domain.Teacher.addresses, could not initialize proxy - no Session'org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.zhile.domain.Teacher.addresses, could not initialize proxy - no Session    at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:582)    at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:201)    at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:145)    at org.hibernate.collection.internal.PersistentSet.size(PersistentSet.java:143)    at com.zhile.web.rest.TeacherResource.getTeacher(TeacherResource.java:111)    at com.zhile.web.rest.TeacherResource$$FastClassBySpringCGLIB$$1bff0b37.invoke(<generated>)    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)    at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)    at com.zhile.aop.logging.LoggingAspect.logAround(LoggingAspect.java:85)    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.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618)    at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at com.ryantenney.metrics.spring.TimedMethodInterceptor.invoke(TimedMethodInterceptor.java:48)    at com.ryantenney.metrics.spring.TimedMethodInterceptor.invoke(TimedMethodInterceptor.java:34)

这是由于没有配置在视图打开延迟加载特性所置，在SpringBoot的项目中通过以下配置设置：

jpa:    open-in-view: true    --------此处配置    database-platform: org.hibernate.dialect.MySQL5InnoDBDialect    database: MYSQL    show-sql: true    properties:        hibernate.id.new_generator_mappings: true        hibernate.cache.use_second_level_cache: true        hibernate.cache.use_query_cache: false        hibernate.generate_statistics: true