在测试hibernate时出现了如下异常：
[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)
这个问题找了很久，晕了很久，终于找到了问题的所在。因我在定义数据表字段时加了not null unique,而我一次添加N条记录时的内容一样，主键是自动生成的，所以出问题了。
posted on 2005-09-06 10:03
Harryson 阅读(2295)
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