原文:java報錯nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2

java報錯nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result or null to be returned by selectOne , but found: 是因為sql語句中返回了多條,但是實際上需要的值只有一條 ...

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