Connection Java-MySql : Public Key Retrieval is not allowed

java mysql exception connector
danny picture danny · May 16, 2018 · Viewed 151.4k times · Source

I try to connect MySql database with Java using connector 8.0.11. Everything seems to be ok but I have this exception:

Exception in thread "main" java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed

Answer

jtomaszk picture jtomaszk · May 20, 2018

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

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