SpringMVC resultful架构风格

 1 package com.cn.restful;
 2 
 3 import org.springframework.stereotype.Controller;
 4 import org.springframework.ui.ModelMap;
 5 import org.springframework.web.bind.annotation.*;
 6 
 7 import java.util.ArrayList;
 8 import java.util.Arrays;
 9 import java.util.Iterator;
10 import java.util.List;
11 
12 /**
13  * @Author hxy
14  * @Description Restful 页面控制器
15  * @Date 2023/9/15 15:19
16  * @Version 1.0
17  */
18 @Controller
19 public class RestfulController {
20     private List<UserDto> userlist=new ArrayList<>(Arrays.asList(
21             new UserDto(1,"张三"),
22             new UserDto(2,"李四")
23     ));
24 
25 //    @RequestMapping(value = "/user/list",method = RequestMethod.GET)
26     @GetMapping("/user/list")
27     public String listUser(ModelMap modelMap){
28         modelMap.addAttribute("msg",userlist);
29         return "result";
30     }
31 
32     @GetMapping("/user/{id}")//url地址动态绑定
33     public String getUser(@PathVariable("id") Integer id, ModelMap modelMap){
34         for (UserDto user:userlist){
35             modelMap.addAttribute("msg",user);
36             break;
37         }
38         return "result";
39     }
40 
41     @PostMapping("/user")
42     public String addUser(@ModelAttribute("msg") UserDto userDto){
43         userlist.add(userDto);
44         return "result";
45     }
46 
47     @PutMapping("/user")
48     public String updateUser(@ModelAttribute("msg") UserDto user){
49         for (UserDto userDto: userlist){
50             if (userDto.getId().equals(user.getId())){
51                 userDto.setName(user.getName());
52                 break;
53             }
54         }
55         return "redirect:/toResult";//重定向
56     }
57 
58     @DeleteMapping("/user/{id}")
59     public String delUser(@PathVariable("id") Integer id){
60         //迭代器
61         Iterator<UserDto> iterator = userlist.iterator();
62         while(iterator.hasNext())  {
63             UserDto user= iterator.next();
64             if (user.getId().equals(id)){
65                 iterator.remove();
66             }
67         }
68         return "redirect:/toResult";
69     }
70 
71     @GetMapping("/toResult")
72     public String result(ModelMap modelMap){
73         modelMap.addAttribute("msg",userlist);
74         return "result";
75     }
76 }