Exception in thread "main" java.sql.SQLException: Access denied for user 'root'@'hadoop01' (using password: YES)

这个错误提示是因为用户访问被拒绝，原因是密码不正确。可能是你在连接MySQL时输入的密码不正确，或者是MySQL数据库中的密码与你在yml文件中配置的密码不一致。你可以尝试重新输入密码或者修改yml文件中的密码，然后再次连接MySQL。如果问题仍然存在，你可以检查MySQL数据库中的用户权限是否正确，或者检查网络连接是否正常。

相关问题

Caused by: java.sql.SQLException: Access denied for user root @ Hadoop (using password: YES)

这个错误提示表明你正在尝试使用用户名为root，在Hadoop主机上连接数据库时，密码验证未成功。可能是因为你输入的密码不正确，或者是因为MySQL数据库没有为root用户授予在Hadoop主机上的访问权限。

你可以尝试以下解决方法：

1. 确认你输入的密码是正确的，检查是否有输入错误。

2. 检查MySQL数据库的用户授权情况。可以使用以下命令查看当前用户的授权情况：

   SHOW GRANTS FOR 'root'@'Hadoop';

如果没有授权，可以使用以下命令为root用户授予在Hadoop主机上的访问权限：

   GRANT ALL PRIVILEGES ON *.* TO 'root'@'Hadoop' IDENTIFIED BY 'password' WITH GRANT OPTION;

其中，`password`为root用户的密码。

3. 确认Hadoop主机是否已经开启了MySQL服务，并且MySQL服务已经正常运行。

4. 确认Hadoop主机的防火墙是否已经开放了MySQL服务的端口。

希望这些解决方法能够帮助你解决问题。

Exception in thread "main" java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

This error message indicates that the user 'root' is being denied access to the MySQL database on the local machine. This could be due to one of several reasons:

1. Incorrect username or password: Make sure that the username and password for the 'root' user are correct and that they match the information used to set up the MySQL server.

2. Insufficient privileges: Check if the 'root' user has sufficient privileges to access the database. The user may require additional privileges to perform certain operations.

3. Firewall or network issues: Ensure that there are no network or firewall issues preventing the 'root' user from accessing the database.

To resolve this issue, try the following:

1. Verify the username and password for the 'root' user.

2. Grant additional privileges to the 'root' user if necessary.

3. Check for any network or firewall issues that may be preventing access to the database.

4. Ensure that the MySQL server is running and configured correctly.

5. If all else fails, try resetting the password for the 'root' user.