Hibernate延迟加载错误：ERROR org.hibernate.LazyInitializationException

最新推荐文章于 2025-06-06 15:09:28 发布

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本文详细介绍了在使用SSH框架进行数据查询时遇到的LazyInitializationException异常的解决方案，通过在web.xml中添加OpenSessionInViewFilter来解决异常问题。

框架SSH，前台查询数据时碰到如下异常：

ERROR org.hibernate.LazyInitializationException - failed to lazily initialize a collection, no session or session was closed

实体类关系映射：

解决办法：

web.xml中添加OpenSessionInViewFilter

<filter>
  <filter-name>gsm_OpenSessionInViewFilter</filter-name>
  <filter-class>
   org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
  <init-param>
   <param-name>sessionFactoryBeanName</param-name>
   <param-value>gsmSessionFactory</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>gsm_OpenSessionInViewFilter</filter-name>
  <url-pattern>*.do</url-pattern>
  <url-pattern>*.jsp</url-pattern>
  <url-pattern>*.action</url-pattern>
</filter-mapping>