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流程
/demo/view.do?id=xx-->Filter控制器-->ViewAction-->NoteDao.findById-->NOTE-->Result-->/WEB-INF/页面
web.xml配置
<!-- opensessioninviewfilter,放在struts2 filter之前 -->
<filter>
<filter-name>opensession</filter-name>
<filter-class>
org.springframework.orm.hibernate4.support.OpenSessionInViewFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>opensession</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
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注入的DAO实现类延迟加载
@Override
public Note selectById(int id) {
try{
Note note = hibernateTemplate.load(Note.class, id);
return note;
}catch(Exception e){
return null;
}
}\