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
>

 

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:

 

<!--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
>