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Java Connection getClientInfo() method with example
The getClientInfo() method of the Connection interface returns the name and values of the client info properties of the current connection. This method returns a properties object.
To retrieve the values of the client info properties file.
Register the driver using the registerDriver() method of the DriverManager class as −
//Registering the Driver DriverManager.registerDriver(new com.mysql.jdbc.Driver());
Get the connection using the getConnection() method of the DriverManager class as −
//Getting the connection String url = "jdbc:mysql://localhost/mydatabase"; Connection con = DriverManager.getConnection(url, "root", "password");
Create a properties object as −
Properties properties = new Properties();
Add the required key-value pairs to the above created Properties object as −
properties.put("user_name", "new_user");
properties.put("password", "password");Set the above created properties to the client-info using the setClientInfo() method as −
//Setting the Client Info con.setClientInfo(properties);
Retrieve the Properties file (object) using the getClientInfo() method and get properties from it by invoking the getProperty() method as −
Properties prop = con.getClientInfo();
prop.getProperty("user_name");
prop.getProperty("password");
You can also directly get the properties as:
con.getClientInfo("user_name");
con.getClientInfo("password");Following JDBC program establishes connection with the MYSQL database and sets the credentials of a new user to the client info properties file.
Example
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class Connection_getClientInfo {
public static void main(String args[]) throws SQLException {
//Registering the Driver
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
//Getting the connection
String url = "jdbc:mysql://localhost/mydatabase";
Connection con = DriverManager.getConnection(url, "root", "password");
System.out.println("Connection established......");
//Adding the credentials of another user to the properties file
Properties properties = new Properties();
properties.put("user_name", "new_user");
properties.put("password", "my_password");
//Setting the ClientInfo
con.setClientInfo(properties);
//Retrieving the values in the ClientInfo properties file
Properties prop = con.getClientInfo();
System.out.println("user name: "+prop.getProperty("user_name"));
System.out.println("password: "+prop.getProperty("password"));
}
}Output
Connection established...... user name: new_user password: my_password
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