解决org.hibernate.LazyInitializationException: could not initialize proxy

原因： hibernate懒加载导致的。 当查询时，session已关闭。

解决方法：在web.xml 加入以下代码

hibernate

<filter><filter-name>Spring OpenEntityManagerInViewFilter</filter-name><filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class><init-param><param-name>entityManagerFactoryBeanName</param-name><param-value>entityManagerFactory</param-value></init-param><async-supported>true</async-supported></filter><filter-mapping><filter-name>Spring OpenEntityManagerInViewFilter</filter-name><url-pattern>*.do</url-pattern></filter-mapping>

添加jar包

<dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-orm</artifactId>    <version>${spring.ver}</version></dependency>