Java Connection Oracle Code

Source: Internet
Author: User


Package Util;
Import java.sql.*;

Public class DBUtil {
    
    
    Public static Connection getConnection() {
    Connection conn = null;
    Try {
    Class.forName("oracle.jdbc.driver.OracleDriver"); //Load database driver
    System.out.println ("database driver loaded successfully!"); / / output information
    String url = "jdbc:oracle:thin:@localhost:1521:orcl"; //Get the connection URL
    String user = "TEACHER"; //Connect username
    String password = "***"; //Connection password
    Connection con = DriverManager.getConnection(url, user, password); //Get the database connection
    If (con != null) {
    System.out.println("Successful connection to Oracle database!!");
    }
    } catch (Exception e) {
    e.printStackTrace();
    }
    Return conn; / / return Connection instance
    }
    / / Close the resource method
        Public static void close(Connection connection ) {
            Try {
                If (connection != null) {
                    Connection.close();
                    }
                } catch (SQLException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        Public static void close(PreparedStatement preparedStatement ) {
            Try {
                If (preparedStatement != null) {
                    preparedStatement.close();
                    }
                } catch (SQLException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        Public static void close(ResultSet resultSet ) {
            Try {
                If (resultSet != null) {
                    resultSet.close();
                    }
                } catch (SQLException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }

} 





Java Connection Oracle Code


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