package edu.cqu.interfaceTest;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Date;

import javax.swing.JOptionPane;

import javax.swing.Timer;

public class TimeTest  {

    public static void main(String args[]) {

        ActionListener listener = new TimePrinter();

        Timer t = new Timer(10000,listener);

        t.start();

        JOptionPane.showMessageDialog(null,"退出程序吗？");

        System.exit(0);

    }

}

class TimePrinter implements ActionListener{

    @Override

    public void actionPerformed(ActionEvent arg0) {

        // TODO Auto-generated method stub

        Date now = new Date();

        System.out.println("现在时间时:" + now);

        Toolkit.getDefaultToolkit().beep();

    }

}

// 告诉spring mvc这是一个控制器类

@Controller

@RequestMapping("")

public class CategoryController {

    @Autowired

    CategoryService categoryService;

    @RequestMapping("listCategory")

    public ModelAndView listCategory(){

        ModelAndView mav = new ModelAndView();

        List<Category> cs= categoryService.list();