spring 异常org.springframework.dao.IncorrectResultSizeDataAccessException: query did not return a unique result: 2

本文转载自查看原文 2018-08-20 13:06 6908 Exception

org.springframework.dao.IncorrectResultSizeDataAccessException: query did not return a unique result: 2; nested exception is javax.persistence.NonUniqueResultException: query did not return a unique result: 2

这个异常是说明数据库中的数据本应该是唯一的但是是重复了是数据的问题不是代码问题

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猜您在找 java.lang.NoSuchMethodError: org.springframework.dao.IncorrectResultSizeDataAccessException query did not return a unique result: 2错误的发生 org.springframework.dao.EmptyResultDataAccessException: Incorrect result size: expected 1, actual 0 org.springframework.dao.DataAccessResourceFailureException Io 异常: tConnection reset org.springframework.dao.DuplicateKeyException org.springframework.dao.InvalidDataAccessResourceUsageException org.springframework.dao.TransientDataAccessResourceException org.springframework.dao.EmptyResultDataAccessException org.springframework.dao.EmptyResultDataAccessException jpa语句报 org.springframework.dao.InvalidDataAccessApiUsageException: Parameter with that position [2] did not exist; nested exception is java.lang.IllegalArgumentException: Parameter with that position