java DriverManager获取数据连接的方法

    public static Connection getConnection() throws Exception
  {
 Connection conn=null;
    try
    {  

Class.forName(“oracle.jdbc.driver.OracleDriver”);

        conn = DriverManager.getConnection(“jdbc:oracle:thin:@192.168.1.3:1521:qbdb”, username, password);

return conn;
    } catch (Exception e) {
    e.printStackTrace();
    }

return null;
  }