在測試hibernate時出現了如下異常：
[Duplicate key or integrity constraint violation message from server: "Duplicate entry 'rick0@foobar.com' for key 2"]; SQL was [] for task [Hibernate operation]
org.springframework.dao.DataIntegrityViolationException: Hibernate operation: Duplicate key or integrity constraint violation message from server: "Duplicate entry 'rick0@foobar.com' for key 2"; nested exception is java.sql.SQLException: Duplicate key or integrity constraint violation message from server: "Duplicate entry 'rick0@foobar.com' for key 2"
java.sql.SQLException: Duplicate key or integrity constraint violation message from server: "Duplicate entry 'rick0@foobar.com' for key 2"
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1997)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1167)
這個問題找了很久，暈了很久，終于找到了問題的所在。因我在定義數據表字段時加了not null unique,而我一次添加N條記錄時的內容一樣，主鍵是自動生成的，所以出問題了。
posted on 2005-09-06 10:03
Harryson 閱讀(2305)
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