hibernate异常：解决Hibernate的Write operations are not allowed in read-only mode (FlushMode.NEVER/MANUAL):

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hibernate异常：解决Hibernate的Write operations are not allowed in read-only mode (FlushMode.NEVER/MANUAL): Turn your Session into FlushMode.COMMIT/AUTO or remove ‘readOnly’ marker from transaction definition.

方法1：在出现异常的方法中加入

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getHibernateTemplate().setFlushMode(HibernateTemplate.FLUSH_EAGER);

方法2：重写OpenSessionInViewFilter

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packagecn.com.farben.framework.util;
 
importorg.hibernate.FlushMode;
importorg.hibernate.Session;
importorg.hibernate.SessionFactory;
importorg.springframework.dao.DataAccessResourceFailureException;
importorg.springframework.orm.hibernate3.SessionFactoryUtils;
 
publicclass OpenSessionInViewFilter extends
        org.springframework.orm.hibernate3.support.OpenSessionInViewFilter {
    protectedSession getSession(SessionFactory sessionFactory)
            throwsDataAccessResourceFailureException {
        Session session = SessionFactoryUtils.getSession(sessionFactory, true);
        session.setFlushMode(FlushMode.COMMIT);
        returnsession;
    }
 
    protectedvoid closeSession(Session session, SessionFactory factory) {
        session.flush();
        super.closeSession(session, factory);
    }
}

配置web.xml：

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<filter>
    <filter-name>hibernateFilter</filter-name>
    <filter-class>cn.com.farben.framework.util.OpenSessionInViewFilter</filter-class>
    <init-param>
        <param-name>singleSession</param-name>
        <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping> 
    <filter-name>hibernateFilter</filter-name>  
    <url-pattern>/*</url-pattern> 
</filter-mapping>

总结：

Write operations are not allowed in read-only mode (FlushMode.NEVER/MANUAL): Turn your Session into FlushMode.COMMIT/AUTO or remove ‘readOnly’ marker from transaction definition.

很明显，从上面的异常信息可以清晰地知道在事务切入的方法中（数据库写入操作）必须将session设置为FlushMode.COMMIT或者FlushMode.AUTO。

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