Created
October 6, 2012 04:16
-
-
Save jasoet/3843797 to your computer and use it in GitHub Desktop.
Database Connection Singleton
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
* To change this template, choose Tools | Templates | |
* and open the template in the editor. | |
*/ | |
package org.secondstack.db; | |
import java.sql.Connection; | |
import java.sql.DriverManager; | |
import java.sql.SQLException; | |
/** | |
* | |
* @author Deny Prasetyo | |
*/ | |
public class DatabaseConnection { | |
private static DatabaseConnection instance; | |
private Connection connection; | |
private String url = "jdbc:postgresql://localhost:5432/jdbc"; | |
private String username = "root"; | |
private String password = "localhost"; | |
private DatabaseConnection() throws SQLException { | |
try { | |
Class.forName("org.postgresql.Driver"); | |
this.connection = DriverManager.getConnection(url, username, password); | |
} catch (ClassNotFoundException ex) { | |
System.out.println("Database Connection Creation Failed : " + ex.getMessage()); | |
} | |
} | |
public Connection getConnection() { | |
return connection; | |
} | |
public static DatabaseConnection getInstance() throws SQLException { | |
if (instance == null) { | |
instance = new DatabaseConnection(); | |
} else if (instance.getConnection().isClosed()) { | |
instance = new DatabaseConnection(); | |
} | |
return instance; | |
} | |
} |
Thanks , It really helped me.
you can create an other method public DatabaseConnection createCon(String url, uName, pswrd){}
is there any way not to hardcode URL, username, and password?
So now which method should I call to get the data base connection ?
DBConnection db = DBConnection.getInstance();
Connection conn = db.getConnection();
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
is there any way not to hardcode URL, username, and password?