java.sql.SQLException: Unknown initial character set index '255' received from server for connector 8.0.11

Question

While establishing the connection to a MySQL database, I\'m getting the following error

java.sql.SQLException: Unknown initial character set index \'255\' receiv         


        

Answer 1

Sounds like you need to download the latest connector j jar:

http://chillyfacts.com/java-sql-sqlexception-unknown-initial-character-set-index-224-received-server/

Answer 2

I am using springboot,liquibase, mysql

I got solution: This error occur just because of mysql connector in dependency and mysql server you install not match(in my case i am using lower version mysql connector and latest mysql server). So just change scope of mysql connector to runtime:

maven

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>

gradle

dependencies {
//... other dependencies
runtimeOnly group:'mysql', name:'mysql-connector-java'
}

Or if problem yet not solve then use same version or nearby version for both mysql server and mysql connector.

Answer 3

Adding the following to your connection string should work:

jdbc:mysql://localhost/yourDB?characterEncoding=latin1;

Answer 4

Use the same version of MySQL as well as mysql-connector. If you are using tomcat then keep the connector in the lib folder of tomcat.

Answer 5

Setting the CharacterEnconding, useUnicode options will work

jdbc:mysql://localhost:3306/dbname?characterEncoding=utf8&useSSL=false&useUnicode=true"

Answer 6

Add connector dependency jar file in the POM file after a cross-check with your MySql server version 8.0.x add this dependency it was working for me mysqlmysql-connector-java 8.0.11