java.sql.SQLException: Unable to connect to foreign data source: Access denied for user 'root'@'localhost' (using password: YES)

这个错误是由于无法连接到外部数据源引起的。错误信息显示访问被拒绝，可能是因为使用的用户名和密码不正确或者权限不足。

首先，确认使用的用户名和密码是否正确。确保用户名是正确的，并且密码与数据库中设置的一致。

其次，检查该用户是否具有足够的权限来连接到外部数据源。在某些情况下，需要为该用户授予特定的权限才能连接到远程数据库。请检查数据库服务器上的用户权限设置，并确保该用户具有连接到外部数据源的权限。

另外，还要确保数据库服务器的网络设置允许远程连接。有时候，数据库服务器会限制只允许本地连接，需要修改配置文件或者相关设置来允许远程连接。

如果以上步骤都没有解决问题，可能是由于其他原因导致无法连接到外部数据源。此时，建议检查数据库服务器的错误日志或者联系数据库管理员以获取更多帮助。

相关问题

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 database server at "localhost" because the provided password is incorrect.

There are a few possible reasons why this might be happening:

1. The password for the "root" user has been changed or forgotten.
2. The "root" user has not been granted proper privileges to access the database server.
3. There is a typo or error in the connection string that is being used to connect to the database server.

To resolve this issue, you should verify the following:

1. Make sure that the password being used to connect to the database server is correct. If you have forgotten the password, you may need to reset it.
2. Check that the "root" user has the necessary privileges to access the database server. You can do this by logging into the database server with another user account that has administrative privileges and granting the necessary permissions to the "root" user.
3. Verify that the connection string being used to connect to the database server is correct, and that there are no typos or errors.

java.lang.RuntimeException: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

java.lang.RuntimeException: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) 这个错误是由于在连接数据库时使用的用户名和密码不导致的。用户名应为'root'，密码应正确输入。请确保用户名和密码正确并重新连接数据库。