How to Connect Your Android App to a MySQL Database Using the JDBC Driver?

Establishing Android-MySQL Connectivity with MySQL JDBC Driver

Connecting Android devices to MySQL databases using the MySQL JDBC driver has been a common challenge for developers. In this article, we'll guide you through the necessary steps to resolve any issues you may encounter.

Steps for Establishing Connectivity

1. Acquire the Driver:
   Download the mysql-connector-java-3.0.17-ga-bin.jar driver and place it in the libs folder of your Android project.
2. Configure Project Build Path:
   Click "ConfigureBuildPath" and choose "Add Jar" to ensure the driver is incorporated into your project.
3. Grant INTERNET Permissions:
   Edit your AndroidManifest.xml file to grant INTERNET permissions to your application.
4. Establish Connection:
   Implement the following code to connect to your MySQL database:

try{
    Class.forName("com.mysql.jdbc.Driver").newInstance();
}catch(Exception e){
    System.err.println("Cannot create connection");
}
try{
    connection = DriverManager.getConnection("jdbc:mysql://192.168.xx.xx:3306/dbname","root","password");
    Statement statement = connection.createStatement();

    String query = "SELECT column1, column2 FROM table1 WHERE column3 = ";
    query = query +"'" +variable+"'";           
    ResultSet result = statement.executeQuery(query);
}catch(Exception e){
    System.err.println("Error");
}

Troubleshooting Tip

If you encounter connection errors despite following these steps, consider removing the Target SDK version from your manifest. Certain Android versions experience connectivity issues when this setting is specified.

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