MySQL Connector/J: The JDBC Driver for MySQL 8.0 and Beyond
How to Download and Use MySQL Connector/J
MySQL Connector/J is a Java library that allows you to connect to MySQL databases and perform various operations using the JDBC and X DevAPI interfaces. In this article, you will learn what MySQL Connector/J is, how to download and install it, how to use it with JDBC and X DevAPI, and what are the benefits of using it.
What is MySQL Connector/J?
MySQL Connector/J is the official JDBC driver for MySQL. It also supports the new X DevAPI, which is a modern, fluent, and intuitive way of working with both relational and document data in MySQL.
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A JDBC and X DevAPI driver for MySQL
JDBC stands for Java Database Connectivity, which is a standard API for accessing databases from Java applications. JDBC provides a set of classes and interfaces that allow you to execute SQL statements, retrieve results, handle errors, manage transactions, and more.
X DevAPI is a new interface that enables you to work with both relational and document data in MySQL using a common set of CRUD operations. CRUD stands for Create, Read, Update, and Delete, which are the basic operations for manipulating data. X DevAPI also supports advanced features such as schemaless collections, JSON documents, expressions, transactions, locking, indexes, etc.
A Type 4 driver that is platform independent
MySQL Connector/J is a JDBC Type 4 driver, which means that it is a pure Java implementation of the MySQL protocol and does not rely on any native libraries or client software. This makes it platform independent and compatible with any operating system that supports Java.
Compatible with MySQL 5.6 and above
MySQL Connector/J 8.0 is compatible with all MySQL versions starting with MySQL 5.6. Additionally, MySQL Connector/J 8.0 supports the new features and enhancements introduced in MySQL 8.0, such as roles, window functions, common table expressions, JSON functions, etc.
How to Download MySQL Connector/J?
There are two ways to download MySQL Connector/J:
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From the official website
You can download MySQL Connector/J from the official website at . You can choose from different formats such as zip, tar.gz, msi, dmg, etc. depending on your operating system. You can also select the operating system from the drop-down menu to get the recommended download option.
From the terminal using wget or curl
If you prefer to download MySQL Connector/J from the terminal using wget or curl commands, you can follow these steps:
Go to and find the download link for the format and operating system of your choice.
Copy the download link and paste it in the terminal after the wget or curl command. For example, if you want to download the zip file for Linux, you can use the following command:
Wait for the download to complete and verify that the file is downloaded successfully.
How to Install MySQL Connector/J?
Installing MySQL Connector/J is very easy and straightforward. You just need to follow these steps:
Copy the jar file to a suitable location
After downloading MySQL Connector/J, you need to extract the jar file from the downloaded archive. The jar file is named mysql-connector-java-version.jar, where version is the version number of MySQL Connector/J. For example, for MySQL Connector/J 8.0.26, the jar file is named mysql-connector-java-8.0.26.jar.
You can copy this jar file to any location on your system that is accessible by your Java application. For example, you can copy it to your home directory, your project directory, or a common library directory.
Add the jar file to the classpath
The next step is to add the jar file to the classpath of your Java application. The classpath is a list of directories and files that Java uses to find and load classes at runtime. You can set the classpath using different methods depending on how you run your Java application.
For example, if you run your Java application from the command line using the java command, you can use the -cp or -classpath option to specify the classpath. You need to include the path to the jar file in the classpath, separated by a colon (:) on Linux or a semicolon (;) on Windows. For example, if you copied the jar file to your home directory, you can use the following command:
java -cp .:/mysql-connector-java-8.0.26.jar YourApplication
If you use an IDE such as Eclipse or NetBeans to develop and run your Java application, you can add the jar file to the build path or library path of your project using the IDE settings.
How to Use MySQL Connector/J?
Once you have installed MySQL Connector/J, you can use it to connect to MySQL databases and perform various operations using either JDBC or X DevAPI.
With JDBC API
To use MySQL Connector/J with JDBC API, you need to follow these steps:
Load the driver class
The first step is to load the driver class of MySQL Connector/J using the Class.forName() method. The driver class is com.mysql.cj.jdbc.Driver. You need to pass this class name as a string argument to the Class.forName() method. For example:
This will register the driver with the DriverManager, which is a class that manages the available drivers and connections.
Obtain a connection from the DriverManager
The next step is to obtain a connection object from the DriverManager using the getConnection() method. The getConnection() method takes a connection URL as a string argument and returns a Connection object that represents a physical connection to a database. The connection URL has the following format:
where host is the hostname or IP address of the MySQL server, port is the port number of the MySQL server (default is 3306), database is the name of the database to connect to, and properties are optional parameters that specify various connection settings such as user name, password, character encoding, SSL mode, etc.
For example, if you want to connect to a database named test on a local MySQL server with user name root and password root123, you can use the following connection URL:
You can pass this connection URL as a string argument to the DriverManager.getConnection() method and assign the returned Connection object to a variable. For example:
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test?user=root&password=root123");
Execute queries and updates using Statement or PreparedStatement
After obtaining a connection object, you can use it to create Statement or PreparedStatement objects, which are used to execute SQL queries and updates on the database. A Statement object is used to execute a static SQL statement, while a PreparedStatement object is used to execute a parameterized SQL statement. A parameterized SQL statement is a statement that contains placeholders for values that are supplied at runtime.
To create a Statement object, you can use the createStatement() method of the Connection object. For example:
Statement stmt = conn.createStatement();
To create a PreparedStatement object, you can use the prepareStatement() method of the Connection object. You need to pass the parameterized SQL statement as a string argument to the prepareStatement() method. For example, if you want to create a PreparedState