TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 25

TooManyResultsException:期望selectOne()返回一个结果(或null)，但发现:25TooManyResultsException:期望selectOne()返回一个结果(或null)，但发现:25 Introduction:org . mybatis . spring . mybatissystem exception:nested exception is org . Apache . ibatis . exceptions . toomanir