数据库能查出来值,但是返回是为null - CSDN社区
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使用逆向工程后数据库有数据但查询出来的值为Null原因解决方案方案1方案2总结 原因 在使用逆向工程后会为我们自动生成实体类和映射文件，但是生成的实体类中某些属性名和数据库表中的属性名会发生改变如下图： 但是逆向工程通过使用resultMap 把数据库的 ...
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