java:jdbc連接mysql數據庫

package com.mysql;

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

public class mySqlJdbc {
	public static void main(String[] args) {
			ResultSet rs=null;
			Statement st=null;
			Connection cn=null;
			try {
				//加載mysql驅動
				Class.forName("com.mysql.jdbc.Driver");
				//獲得連接
				String url = "jdbc:mysql://localhost:3306/employee";
				String user = "root";
				String password = "admin";
				cn = DriverManager.getConnection(url, user, password);
				//準備執行語句
				st = cn.createStatement();
				String sql="select * from employee";
				//執行sql語句返回給resultset結果集
				rs = st.executeQuery(sql);
				//讀取resultset結果集中的數據
				while(rs.next()){
				System.out.println(rs.getString(1));
				}
			} catch (ClassNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
				//各種關閉，註釋：後用先關
			}finally{
				try {
					if(rs!=null){
						rs.close();
					}
					if(st!=null){
						st.close();
					}
					if(cn!=null){
						cn.close();
					}
				} catch (SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
	}
}

切記：jar要導入eclipse中，下面提供mysqljar下載地址:

http://dev.mysql.com/downloads/connector/j/