Exception in thread "main" java.sql.SQLException: null, ?message from server: "Host 'windows10.microdone.cn' is not allowed to connect to this MySQL server"

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946)

at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1070)

at com.mysql.jdbc.Connection.createNewIO(Connection.java:2775)

at com.mysql.jdbc.Connection.<init>(Connection.java:1555)

at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)

at java.sql.DriverManager.getConnection(DriverManager.java:664)

at java.sql.DriverManager.getConnection(DriverManager.java:247)

at com.imooc.jdbc.DBUtil.main(DBUtil.java:16)