attempt to create merge event with null entity;
2013-02-27 13:49
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jpa映射
attempt to create merge event with null entity;
可能是后台绑定的实体对象不对，
检查方式是将打印出的sql语句拿到数据库执行，看看行不行，
在做与数据库相关的最好的方式是将sql语句打印拿去运行
attempt to create merge event with null entity;
可能是后台绑定的实体对象不对，
检查方式是将打印出的sql语句拿到数据库执行，看看行不行，
在做与数据库相关的最好的方式是将sql语句打印拿去运行
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