mybatis -----attempted to return null from a method with a primitive return type (int)
2017-06-05 17:16
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MyBatis 报这个错误是因为查出的值 null报的异常 ；解决办法如果查出的值为NULL就将其设置0
在select 后加 IFNULL()函数即可
在select 后加 IFNULL()函数即可
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