org.hibernate.LazyInitializationException...no session or session was closed

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解决org.hibernate.LazyInitializationException: could not initialize proxy - no Session懒载入问题

问题描写叙述: Struts Problem Report Struts has detected an unhandled exception: Messages: could not initialize proxy - no Session Error reading 'name' on type future.oa.domain.Department_$$_jvstb8a_0 javax.el.ELException: Error reading 'name' on type futur…

org.hibernate.LazyInitializationException...no session or session was closed

org.hibernate.LazyInitializationException:failed to lazily initialize a collection of role:cn.its.oa.domain.Department.children,no session or session was closed (在ssh框架下的项目中出现了这个错误,被老鸟一眼就看出了问题所在,改正过来了,在这里记录一下)分析下导致这种异常的出现的原因:在设置两个实体之间多对一的关系的时候对象实例化失…

J2EE进阶(九)org.hibernate.LazyInitializationException: could not initialize proxy - no Session

org.hibernate.LazyInitializationException: could not initialize proxy - no Session 前言在<many-to-on>中这错误很常见,字面意义就是不能被初始化,因为session已经关闭了. 简单理解就是因为,你使用了lazy=true,这样hibernate在从数据库中调数据的时候是不会把关联的对象查出来的,而是保存一个获取值的方法,在你使用getXXX()调用的时候,hiberante会利用这个保存的方法去从数…

jpa 解决org.hibernate.lazyinitializationexception could not initialize proxy - no session

org.hibernate.LazyInitializationException: could not initialize proxy [org.alan.entity.SysUser#1] - no Session 五个解决方案 1.关闭LazyInitialization, 将fetch设成eager,可以在配置文件,也可注解 2.在spring boot的配置文件application.properties添加spring.jpa.open-in-view=true,yml同理 3.用…

hibernate延迟加载org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.javakc.hibernate.onetomany.entity.DeptEntity.emp, could not initialize proxy - no Session

public static void main(String[] args) { DeptEntity dept = getDept("402882e762ae888d0162ae888e420000"); //dept.getEmp()得到子表的记录集合 System.out.println(dept.getEmp()); } private static DeptEntity getDept(String did){ Session session = sessionFactor…

Exception 07 : org.hibernate.LazyInitializationException: could not initialize proxy - no Session

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(Abstract…

解决方案，org.hibernate.LazyInitializationException: could not initialize proxy - no Session

org.hibernate.LazyInitializationException: could not initialize proxy - no Session org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:132) org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInit…