Connection Java - MySQL : Public Key Retrieval is not allowed
I try to connect MySQL database with Java using connector 8.0.11. Everything seems to be OK, but I get this exception:
Exception in thread "main" java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:108) at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95) at
com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) at
com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:862) at
com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:444) at
com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) at
com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) at
com.mysql.cj.jdbc.MysqlDataSource.getConnection(MysqlDataSource.java:438) at
com.mysql.cj.jdbc.MysqlDataSource.getConnection(MysqlDataSource.java:146) at
com.mysql.cj.jdbc.MysqlDataSource.getConnection(MysqlDataSource.java:119) at
ConnectionManager.getConnection(ConnectionManager.java:28) at
Main.main(Main.java:8)
Here is my Connection Manager class:
public class ConnectionManager {
public static final String serverTimeZone = "UTC";
public static final String serverName = "localhost";
public static final String databaseName ="biblioteka";
public static final int portNumber = 3306;
public static final String user = "anyroot";
public static final String password = "anyroot";
public static Connection getConnection() throws SQLException {
MysqlDataSource dataSource = new MysqlDataSource();
dataSource.setUseSSL( false );
dataSource.setServerTimezone( serverTimeZone );
dataSource.setServerName( serverName );
dataSource.setDatabaseName( databaseName );
dataSource.setPortNumber( portNumber );
dataSource.setUser( user );
dataSource.setPassword( password );
return dataSource.getConnection();
}
}
You should add client option to your mysql-connector allowPublicKeyRetrieval=true
to allow the client to automatically request the public key from the server. Note that allowPublicKeyRetrieval=True
could allow a malicious proxy to perform a MITM attack to get the plaintext password, so it is False by default and must be explicitly enabled.
https://mysql-net.github.io/MySqlConnector/connection-options/
you could also try adding useSSL=false
when you use it for testing/develop purposes
example:
jdbc:mysql://localhost:3306/db?allowPublicKeyRetrieval=true&useSSL=false
For DBeaver users:
Right click your connection, choose "Edit Connection"
On the "Connection settings" screen (main screen) click on "Edit Driver Settings"
Click on "Connection properties"
Right click the "user properties" area and choose "Add new property"
Add two properties: "useSSL" and "allowPublicKeyRetrieval"
Set their values to "false" and "true" by double clicking on the "value" column