MySQL :: MySQL Connector/J 8.0 Developer Guide :: 7.1 Connecting to MySQL Using the JDBC DriverManager Interface
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MySQL :: MySQL Connector/J 8.0 Developer Guide :: 7.1 Connecting to MySQL Using the JDBC DriverManager Interface

When you use jdbc outside of an application server, the drivermanager class handles connection establishment.

specify to the driver manager which jdbc drivers to try to make connections with. the easiest way to do this is to use class.forname() on the class that implements the java.sql.driver interface. with mysql/j connector, the name of this class is com.mysql.cj.jdbc.driver. With this method, you can use an external configuration file to provide the driver class name and driver parameters to use when connecting to a database.

Reading: How to connect java to mysql

The following section of java code shows how you can register mysql connector/j from your application’s main() method. if you are testing this code, first read the installation section in chapter 4, plugin/j installation, to make sure you have the plug-in installed correctly and the classpath configured. also, make sure mysql is configured to accept external tcp/ip connections.

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After the driver has registered with the driver manager, you can get a connection instance that is connected to a particular database by calling drivermanager.getconnection():

for connector/j 8.0.24 and later: When the connection user is not specified, connector/j authentication plugin implementations default to the name of the operating system user running the application for authentication with the mysql server (except when using the kerberos authentication plugin; see section 6.12.2, “connecting via kerberos” for more information).

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