准备工作：安装XAMPP,登陆apache,mysql，并通过phpadmin来创建数据库，新建一个表，插入一些数据：

http://localhost/phpmyadmin，最好设置密码，不然后面连接数据库的时候可能会无法访问。

设置密码方式：

修改密码--->一定要使用生成的密码来登陆，包括后面的数据库url也是。

我自己的数据如下：包括8个字段，其中主键ID要勾选 auto increament,其余的数据你自己随意设置。

这时候就可以在eclipse中编程开发了，注意的是我们需要导入mysql数据库的驱动，就是一个jar文件：

代码如下：

package jdbc01;

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

public class javajdbctest {

	static Connection conn;
	static Statement st;
	private static String driver = "com.mysql.jdbc.Driver";
	private static String url = "jdbc:mysql://127.0.0.1:3306/test_01_xampp";
	private static String usr = "root";
	
	//password for mysql 
	private static String psw = "Ctx3azAvHKDVmSrM"; 
	public static void main(String[] args) throws SQLException {
		
		insert();
		update();
		delete();
		query();

	}
	public static void insert() throws SQLException
	{
		conn = getcon();
		
		String sql = "INSERT INTO staff(name, age, sex, address, depart, worklen, wage)" +
				" VALUES ('Tom1', 32, 'male', 'beijingchina', 'personnel', '3', '3000')";
		st = conn.createStatement();
		
		//执行插入操作的sql语句，并返回插入数据的个数
		int cnt = st.executeUpdate(sql);
		
		//输出插入操作的处理结果
		System.out.println("向staff表中插入 " + cnt + " 条数据");
		conn.close();   //关闭数据库连接 
		
		
	}
	public static void update() throws SQLException
	{
		
		conn = getcon();
		
		String sql = "update staff set wage = '2200' where name = 'Tom1'";
		
		try {
			st = conn.createStatement();
		} catch (SQLException e) {
			
			e.printStackTrace();
		}
		int cnt = st.executeUpdate(sql);
		System.out.println("staff表 更新： " + cnt + "条数据");
		conn.close();
		
	}
	
	public static void delete() throws SQLException
	{
		conn = getcon();
		
		String sql = "delete from staff  where name = 'Tom1'";
		st = conn.createStatement();
		int cnt = st.executeUpdate(sql);
		System.out.println("staff表中删除 " + cnt + " 条数据"); 
		conn.close();
	}
	
	public static void query() throws SQLException
	{
		conn = getcon();
		
		String sql = "select * from staff";
		st = conn.createStatement();
		ResultSet rt = st.executeQuery(sql);
		System.out.println("query results belows: ");
		while(rt.next())
		{
			String name = rt.getString("name");
			String sex = rt.getString("sex");
			int age = rt.getInt("age");
			String address = rt.getString("address");  
            String depart = rt.getString("depart");  
            String worklen = rt.getString("worklen");  
            String wage = rt.getString("wage");  
            System.out.println(name + " " + age + " " + sex + " " + address  
                    + " " + depart + " " + worklen + " " + wage); 
		}
		conn.close();
	}
	public static Connection getcon()
	{
		try {
			Class.forName(driver);
		} catch (ClassNotFoundException e1) {
			System.out.println("加载驱动失败.");
			e1.printStackTrace();
		}
		System.out.println("MySQL JDBC Driver R