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/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
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*/
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package com.example.web;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.springframework.web.bind.annotation.DeleteMapping;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.PutMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.Parameter;
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import io.swagger.v3.oas.annotations.tags.Tag;
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/**
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*
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* @author Archer
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*/
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@Tag(name = "用户管理", description = "用户管理API")
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@RestController
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@RequestMapping(value = "/users") // 通过这里配置使下面的映射都在/users下
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public class UserController {
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// 创建线程安全的Map，模拟users信息的存储
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static Map<Long, User> users = Collections.synchronizedMap(new HashMap<>());
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/**
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* 处理"/users/"的GET请求，用来获取用户列表
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*
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* @return
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*/
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@Operation(summary = "获取用户列表", description = "获取用户列表")
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@GetMapping("/")
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public List<User> getUserList() {
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// 还可以通过@RequestParam从页面中传递参数来进行查询条件或者翻页信息的传递
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List<User> r = new ArrayList<>(users.values());
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return r;
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}
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/**
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* 处理"/users/"的POST请求，用来创建User
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*
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* @param user
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* @return
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*/
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@Operation(summary = "创建用户", description = "根据user对象创建用户")
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@PostMapping("/")
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public String postUser(@RequestBody User user) {
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// @RequestBody注解用来绑定通过http请求中application/json类型上传的数据
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users.put(user.getId(), user);
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return "success";
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}
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/**
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* 处理"/users/{id}"的GET请求，用来获取url中id值的User信息
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*
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* @param id
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* @return
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*/
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@Operation(summary = "获取用户详细信息", description = "根据url的id来获取用户详细信息")
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@GetMapping("/{id}")
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public User getUser(@PathVariable Long id) {
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// url中的id可通过@PathVariable绑定到函数的参数中
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return users.get(id);
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}
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/**
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* 处理"/users/{id}"的PUT请求，用来更新User信息
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*
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* @param id
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* @param user
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* @return
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*/
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@Operation(summary = "更新用户详细信息",
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description = "根据url的id来指定更新对象，并根据传过来的user信息来更新用户详细信息",
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parameters = {
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@Parameter(name = "id", description = "用户ID", required = true),
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@Parameter(name = "user", description = "用户详细信息", required = true)
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})
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@PutMapping("/{id}")
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public String putUser(@PathVariable Long id, @RequestBody User user) {
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User u = users.get(id);
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u.setName(user.getName());
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u.setAge(user.getAge());
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users.put(id, u);
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return "success";
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}
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/**
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* 处理"/users/{id}"的DELETE请求，用来删除User
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*
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* @param id
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* @return
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*/
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@Operation(summary = "删除用户", description = "根据url的id来指定删除对象")
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@DeleteMapping("/{id}")
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public String deleteUser(@PathVariable Long id) {
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users.remove(id);
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return "success";
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}
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} |
