resultMap使用不当导致出现There is no WRITEABLE property named 'student_id' in class 'com
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resultMap使用不当导致出现There is no WRITEABLE property named 'student_id' in class 'com
by admin on 2014-04-25 14:34:37 in , 2650次
BUG的原因：
1. resultMap是结果集的关系映射，property是实体属性（也就是Student.java里面指定的成员变量），column是数据表中与之对应的属性
2. 当指定了resultMap后，必须保证property在class中能找到，并且名字一致，并且有对应的get（property名）、set（propety名）方法，因为映射的时候是用property名字在class中找到get、set方法的
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