DB connection code archive

DBconn.java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/**
 * Created by fishLite on 2017/8/29.
 */
public class DBConn {
    private String url; // 存储SQLSever连接路径

    private String serverName; // 存储机器的名称

    private String portNumber; // 存储端口名称

    private String databaseName; // 存储数据库名称

    private String userName; // 存储用户名称

    private String password; // 存储密码

    /* 设置连接数据库相关参数 */
    public DBConn() {
        url = "jdbc:mysql://";
        serverName = "localhost";
        portNumber = "3306";
        databaseName = "shopping";
        userName = "root";
        password = "fishwolf027";
    }

    /*获取连接数据库路径并返回*/
    private String getConnectionUrl() {
        return url + serverName+ ":" + portNumber + "/" + databaseName;
    }
    
    /* 获取Conncetion对象并返回 */
    public Connection getConnection(){
        Connection con = null;
        try{
            Class.forName("com.mysql.jdbc.Driver");
            con =
                    DriverManager.getConnection(getConnectionUrl() + "?user="+ userName + "&password=" + password);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
            System.out.println("getConnection()内部跟踪错误:"+ e.getMessage());
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return con;
    }
}