Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException

1.错误日志 Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'merchant_id' in where clause is ambiguous     at sun.reflect.NativeConstructorAccessorImpl.newInst

>>阅读原文<<