Error updating database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'username' cannot be null

今天程序中遇见这个错误一直找不到哪里错后来重写了一遍jsp页面才知道

username我写成了name 和po中的代码对应不上导致了这个错误

写代码一定要认真一点啊好坑啊

Error updating database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'username' cannot be null

时间： 2024-08-29 10:22:10

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