java.sql.SQLException: Access denied for user 'pc'@'localhost' (using passw

idea中原先是这样配置的：

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driver=com.mysql.jdbc.Driver url=jdbc:mysql: //localhost :3306 /ssm ?useUnicode= true &characterEncoding=utf8 username=root password=root

修改后：

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jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql: //localhost :3306 /ssm ?useUnicode= true &characterEncoding=utf8 jdbc.username=root jdbc.password=root

或者如下 同样可以：

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driver=com.mysql.jdbc.Driver url=jdbc:mysql: //localhost :3306 /ssm ?useUnicode= true &characterEncoding=utf8 user=root password=root

总结：只要不直接写成username就可以