Write operations are not allowed in read-only mode错误解决

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1. 问题。
   开启OpenSessionInViewFilter来阻止延迟加载的错误的时候抛出了这个异常：org.springframework.dao.InvalidDataAccessApiUsageException错误
   但是在我们开启OpenSessionInViewFilter这个过滤器的时候FlushMode就已经被默认设置为了MANUAL！
   如果FlushMode是MANUAL或NEVEL,在操作过程中 hibernate会将事务设置为readonly，所以在增加、删除或修改操作过程中会出现如下错误：
   org.springframework.dao.InvalidDataAccessApiUsageException:
   Write operations are not allowed in read-only mode (FlushMode.NEVER) turn your Session into FlushMode.AUTO or remove ‘readOnly’ marker from transaction definition；

   1. 我谷歌还有百度很多的地方都是通过修改OpenSessionInViewFilter 来解决的
      解决的办法
      解决2
      但是 org.springframework.orm.hibernate4.support.OpenSessionInViewFilter; 中没有这个set的参数，我们需要去重写这个方法

然后配置在我们的web.xml 中放置这个拦截群

package com.hdu.cms.common.HibernateUtilExtentions;import org.hibernate.FlushMode;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.dao.DataAccessResourceFailureException;
import org.springframework.orm.hibernate4.support.OpenSessionInViewFilter;/*** Created by JetWang on 2016/10/16.*/
public class OpensessionInViewFliterOver extends OpenSessionInViewFilter {@Overrideprotected Session openSession(SessionFactory sessionFactory) throws DataAccessResourceFailureException {try {Session session = sessionFactory.openSession();session.setFlushMode(FlushMode.AUTO);return session;} catch (HibernateException ex) {throw new DataAccessResourceFailureException("Could not open Hibernate Session", ex);}}
}

http://www.cnblogs.com/wql025/p/4822791.html

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