MySQLNonTransientConnectionException: Client does not support authentication protocol requested by server; consider upgrading MySQL client [duplicate]

Answer 1

I've done what the message suggests. I had in pom.xml:

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.18</version>
</dependency>

and changed to the latest version:

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.12</version>
</dependency>

Answer 2

The issue is with mysql-connector-java version 5.1.6. Try upgrading to version 5.1.44. Worked for me. I used the following dependency version:

compile group: 'mysql', name: 'mysql-connector-java', version: '5.1.44'

Answer 3

this issue can be rectified using below steps:-

step 1 :- run below query in mysql and restart it (for version >8.0 ,username is root here)

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'yourpassword';

step 2:- check the version of your mysql by running select version(); in mysql

 the version of mysql in pom.xml should be same as the version of mysql installed (mine is 8.0.14)
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.14</version>

step 3:-if the mysql-connector jar file is not there in maven repository you can download the 8.0.14 version jar and can paste it in repository

$\.m2\repository\mysql\mysql-connector-java\8.0.14

step 4:- update your maven project

step 5:- check for driverClassName in config.xml, it should be "com.mysql.cj.jdbc.Driver".

Answer 4

check your mysql-connector-java-version.jar(ex: mysql-connector-java-8.0.11.jar) in the lib folder of your project and upgrade accordingly.

Answer 5

Step 1: Check the version of your current Mysql using: SELECT version(); query.

step 2: Check the version of Mysql jdbc driver or Mysql dependency in your maven.

step 3: Upgrade the jar version or the maven dependency version for Mysql.

Answer 6

You have to update the database user’s password using the OLD_PASSWORD function of MySQL. SOLUTION

For example:

[rajesh-tpl-01@home ~]$ mysql -u root -p mysql
Enter password:

mysql> update user set password=OLD_PASSWORD('password') WHERE 
user='username';
Query OK, 0 rows affected (0.02 sec)
Rows matched: 0  Changed: 0  Warnings: 0

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)