ClassNotFoundException with com.mysql.cj.jdbc.Driver, MySQL Connector and IntelliJ IDEA [duplicate]

Question

I'm building up a Maven Java 1.8 project in which I've included the MySQL Connector as a dependency:

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.39</version>
    </dependency>

In my application I've a singleton that holds the MySQL connection so when the application starts, the MySQL connector is triggered but I got a ClassNotFoundException for the driver that I'm using: com.mysql.cj.jdbc.Driver.

The JDBC URL that I'm using is:

jdbc:mysql://localhost:3306/mydb?autoReconnect=true&useSSL=false

I'm using IntelliJ IDEA (2017.2) IDE.

I've checked in File -> Project Structure -> Libraries -> I see "Maven: mysql:mysql-connector-java:5.1.392" as a Library.

I've also checked under File -> Project Structure -> Artifacts -> and under myapp.war exploded -> WEB-INF -> lib -> Maven: mysql:mysql-connector-java:5.1.39 is present.

From View -> Tool Windows -> Database, I've succesfully made a MySQL connection dowloading the suggested driver (MySQL Connector 5.1.35).

How can I tell the application that it has to load the MySQL driver at runtime?

Thanks in advance

Answer 1

Try upgrading your driver. Coz Mysql community has updated class name from com.mysql.jdbc.Driver to com.mysql.cj.jdbc.Driver Check out more on MySql Community

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.11</version>

Or Download jar file direct from here :

mysql-connector-java-8.0.11.jar

List of MySql jar file

Answer 2

If you're facing this problem with Eclipse, I've been following many different solutions but the one that worked for me is this:

1. Right click your project folder and open up Properties.

2. From the right panel, select Java Build Path then go to Libraries tab.

3. Select Add External JARs to import the mysql driver.

4. From the right panel, select Deployment Assembly.

5. Select Add..., then select Java Build Path Entries and click Next.

6. You should see the sql driver on the list. Select it and click first.

And that's it! Try to run it again!