The example below will show the exception. If the MySQL JDBC driver jar is missing or not available in the java class path, the exception : will be thrown. Exception in thread 'main' : Īt (URLClassLoader.java:381)Īt (ClassLoader.java:424)Īt $AppClassLoader.loadClass(Launcher.java:331)Īt (ClassLoader.java:357)Īt 0(Native Method)Īt (Class.java:264)Īt (DBConnection.java:8) By far we are done with importing the JAR to our project. The driver class is not found in the java class path. So what is the role of class.forname () First we know that the class.forname method requires JVM to find and load the specified category to memory, at which time '' is incorporated in parameters, it is to tell JVM, go to '' Looking for a DRIVER class under this path to load it into memory. The stack trace of the exception : will be as below. If the MySQL JDBC driver is not available, the exception : will be thrown by the java application. With MySQL Connector/J, the name of this class is. When I try to create separate class for SQL maitenance it is throwing bunch of exceptions. When I input Class.forName('') file in directly in main everything works. The easiest way to do this is to use Class.forName() on the class that implements the interface. I have an issue with the Class.forName('') I'd like to create separate class for SQL maintenance and GUI to it. The MySQL JDBC driver gathers data from the MySQL database and sends it back to the Java application. Let’s follow above steps in code: 1) Load JDBC driver.

Additionally, MySQL Connector/J 8.0 supports the new X DevAPI for development with MySQL Server 8.0. MySQL Connector/J 8.0 is compatible with all MySQL versions starting with MySQL 5.6. The Mysql database executes the query and returns the data. MySQL Connector/J is the official JDBC driver for MySQL. The mysql driver sends the database query to the database from Java. The MySQL JDBC driver is used to connect a Java application to a MySQL database.

If the MySQL JDBC driver jar is not available, or if the jar is missing in the java class path, the exception : will be thrown. , application.properties .jdbc.Driver .cj.jdbc. The Class.forName() fails to loads the mysql driver class that is not available in the class path. The : exception occurs if the MySQL JDBC driver class can not found in the java class path.

Class forname com mysql jdbc driver