//java連接MySQl數據庫實例代碼package com.abc.dao;/*dkplus專業搜集和編寫實用電腦軟件教程，*搜集各種軟件資源和計算機周邊，獨立制作視頻和ppt和音頻微信公眾號，*點擊進入 dkplus官方博客 （java網絡編程http://dkplus.iteye.com），*微信搜索dkplus關注公眾號可獲取海量計算機周邊資源。*/import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement; public class BaseDao { public Connection getConn() { Connection conn=null; try {  Class.forName("com.mysql.jdbc.Driver"); } catch (ClassNotFoundException e) {  // TODO Auto-generated catch block  e.printStackTrace(); } String url="jdbc:mysql://127.0.0.1:3306/user"; try {  conn=DriverManager.getConnection(url, "root", ""); } catch (SQLException e) {  // TODO Auto-generated catch block  e.printStackTrace(); }  return conn; } public void closeAll(ResultSet rs,Statement stat,Connection conn) { if(rs!=null)  try {  rs.close();  } catch (SQLException e) {  // TODO Auto-generated catch block  e.printStackTrace();  } if(stat!=null)  try {  stat.close();  } catch (SQLException e) {  // TODO Auto-generated catch block  e.printStackTrace();  } if(conn!=null)  try {  conn.close();  } catch (SQLException e) {  // TODO Auto-generated catch block  e.printStackTrace();  } }}