代碼如下：

package?com.imooc.db;

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

import?java.sql.Statement;



public?class?DBUtil?{
	
	
	
	private?static?final?String?URL="jdbc:mysql://127.0.0.1:3306/imooc";
	private?static?final?String?USER="root";
	private?static?final?String?PASSWORD="root";
	
	public?static?void?main(String[]?args)?throws?Exception{
		try{
		//1.加載驅動程序
		Class.forName("com.mysql.jdbc.Driver");
		//2.獲得數據庫的連接
		Connection?conn=DriverManager.getConnection(URL,?USER,?PASSWORD);
		//3.通過數據庫的連接操作數據庫，實現增刪改查
	????Statement?stmt=conn.createStatement();
	????ResultSet?rs=stmt.executeQuery("select?user_name,age?from?imooc_goddness");
	????
	????while(rs.next()){
	????	System.out.println(rs.getString("user_name")+","+rs.getInt("age"));
	????}
	}
		catch(ClassNotFoundException?e){
			e.printStackTrace();
			}catch(SQLException?e){
			e.printStackTrace();
			}
		}

}