OpenSessionInViewFilter失效有关问题解决(SSH2)

OpenSessionInViewFilter失效问题解决(SSH2)

今天在用Hibernate延迟加载时,显示到界面出现如下问题:
org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed

原因: 在界面加载数据时, session已经关闭,故报此错. 此前的对象只是代理对象(只有ID值)

故使用Spring 里的 OpenSessionInViewFilter 来解决此问题

在web.xml里配置

<!--Hibernate Open Session in View Filter-->?? <filter>?? ????<filter-name>hibernateFilter</filter-name>?? ????<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>?? </filter>?? <filter-mapping>?? ????<filter-name>hibernateFilter</filter-name>?? ????<url-pattern>/*</url-pattern>?? </filter-mapping>??

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再测试, 问题依然存在,,, 纳闷....... 后来分析,再google... 终于发现问题出在Struts2上....

现在的web.xml里,我是把OpenSessionInViewFilter的配置放在Struts2后面的.

我更改下前后顺序, 神奇的解决了:)?? 正确的配置顺序如下:

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<!--Hibernate Open Session in View Filter 注意要放在Struts2配置前面-->?? <filter>?? ????<filter-name>hibernateFilter</filter-name>?? ????<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>?? </filter>?? <filter-mapping>?? ????<filter-name>hibernateFilter</filter-name>?? ????<url-pattern>/*</url-pattern>?? </filter-mapping>?? ?? <filter>?? ?? ????<filter-name>Struts2</filter-name>?? ?? ????<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>?? ?? </filter>?? ?? <filter-mapping>?? ?? ????<filter-name>Struts2</filter-name>?? ?? ????<url-pattern>/*</url-pattern>?? ?? </filter-mapping>???