Question

JDBC链接mysql总是报错是怎么回事呢？求大神如何解决。。。急啊

这是报错的内容：
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2975)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:798)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3700)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1203)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2572)
at com.mysql.jdbc.Connection.<init>(Connection.java:1485)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at SQLtest.main(SQLtest.java:12)

Answer 1

mysql用户名或密码错误 或者root账号不允许从localhost登录。先检查密码和用户名，如果局域网登录正常，就修改下roo账号允许t登录的区域就行了。

Answer 2

意思是权限不够，有可能是你的密码不对，或者是你写的连接语句不对！