Why Am I Getting a \'Access Denied for User\' JDBC Error in My Java MySQL Connection?

JDBC Access Denied Error: Resolving "Access Denied for User" in Java

When attempting to establish a connection to a MySQL database through a Java application, you may encounter the "Access denied for user" error. This puzzling issue can leave developers scratching their heads.

Problem Statement

A Java application attempting to connect to a MySQL database encounters the following error message:

java.sql.SQLException: Access denied for user 'vincent'@'x.x.x.x' (using password: YES)

Despite checking in phpMyAdmin that the user 'vincent' is permitted to connect from any host and having a Python script successfully connect with the same credentials, the Java application continues to be denied access.

Solution

The solution lies in granting necessary privileges to the user in MySQL. Execute the following SQL statement:

grant all on db_name.* to ‘vincent’@'%';

Replace "db_name" with the actual database name. This command grants all privileges to the user 'vincent' on that database, allowing them to connect from any machine.

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