example

examples/chapter05/spring-boot-web-demo/src/main/java/com/lk/demo/HelloController.java

@@ -1,26 +0,0 @@
-package com.lk.demo;
-
-import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.HashMap;
-import java.util.Map;
-
-@RestController
-@RequestMapping("/hello")
-public class HelloController {
-    @GetMapping
-    public String hello() {
-        return "Hello World";
-    }
-
-    @GetMapping("/json")
-    public Map<String,String> json() {
-        Map<String,String> data = new HashMap<>();
-        data.put("message","Hello World");
-        return data;
-    }
-
-}

examples/chapter05/spring-boot-web-demo/src/main/java/com/lk/demo/MyWebApplication.java

@@ -1,6 +1,8 @@
 package com.lk.demo;
 
 import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 

examples/chapter05/spring-boot-web-demo/src/main/java/com/lk/demo/User.java

@@ -1,15 +1,12 @@
 package com.lk.demo;
 
 public class User {
+    private Long id;
     private String name;
+    private String password;
     private String email;
     private String phone;
-
-    public User(String name, String email, String phone) {
-        this.name = name;
-        this.email = email;
-        this.phone = phone;
-    }
+    private Integer age;
 
     public String getName() {
         return name;
@@ -34,4 +31,28 @@ public class User {
     public void setPhone(String phone) {
         this.phone = phone;
     }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
 }

examples/chapter05/spring-boot-web-demo/src/main/java/com/lk/demo/UserController.java

@@ -1,10 +1,9 @@
 package com.lk.demo;
 
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
+import java.util.ArrayList;
 import java.util.List;
 
 @RestController
@@ -12,10 +11,82 @@ import java.util.List;
 public class UserController {
 
     @Autowired
-    private UserService userService;
+    UserService userService;
+    /**
+     * 获取指定ID的用户信息
+     * Method: GET
+     * URL: /users/{id}
+     * 输入参数:
+     *   - @PathVariable Long id: 用户ID
+     * 返回数据结构:
+     *   - User对象，包含id, name, age
+     */
+    @GetMapping("/{id}")
+    public User getUser(@PathVariable Long id){
+        System.out.println("Got id from http request: " + id);
+        return userService.getUser(id);
+    }
 
+    /**
+     * 根据名称分页查询用户列表
+     * Method: GET
+     * URL: /users?name={name}&page={page}&pageSize={pageSize}
+     * 输入参数:
+     *   - @RequestParam String name: 用户名称
+     *   - @RequestParam int page: 当前页码
+     *   - @RequestParam int pageSize: 每页大小
+     * 返回数据结构:
+     *   - List<User> 用户列表，每个User对象包含id, name, age
+     */
     @GetMapping("")
-    public List<User> index() {
-        return userService.getUsers();
+    public List<User> findUsers(@RequestParam("name") String name, @RequestParam int page, @RequestParam int pageSize){
+        System.out.println("Got name: " + name+ " page: " + page+ " pageSize: " + pageSize);
+        return userService.queryUsers();
+    }
+
+    /**
+     * 创建新用户
+     * Method: POST
+     * URL: /users
+     * 输入参数:
+     *   - @RequestBody User user: 用户对象，包含name, age, password,email
+     * 返回数据结构:
+     *   - User对象，包含id, name, age, password,email
+     */
+    @PostMapping
+    public User createUser(@RequestBody User user){
+        System.out.println("Got name: "+user.getName()+ "pass:" +user.getPassword());
+        return userService.createUser(user);
+    }
+
+    /**
+     * 更新指定ID的用户信息
+     * Method: PUT
+     * URL: /users/{id}
+     * 输入参数:
+     *   - @PathVariable Long id: 用户ID
+     *   - @RequestBody User user: 用户对象，包含name, age, password
+     * 返回数据结构:
+     *   - User对象，包含id, name, age, password
+     */
+    @PutMapping("/{id}")
+    public User updateUser(@PathVariable Long id, @RequestBody User user){
+        System.out.println("Got id: "+id+ "name: "+user.getName()+  " pass:" +user.getPassword()+" age: "+user.getAge());
+        return userService.updateUser(id, user);
+    }
+
+    /**
+     * 删除指定ID的用户
+     * Method: DELETE
+     * URL: /users/{id}
+     * 输入参数:
+     *   - @PathVariable Long id: 用户ID
+     * 返回数据结构:
+     *   - String "ok" 表示删除成功
+     */
+    @DeleteMapping("/{id}")
+    public String deleteUser(@PathVariable Long id){
+        System.out.println("delete id: "+id);
+        return "ok";
     }
 }

examples/chapter05/spring-boot-web-demo/src/main/java/com/lk/demo/UserService.java

@@ -1,17 +1,48 @@
 package com.lk.demo;
 
 import org.springframework.stereotype.Service;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
 
 import java.util.ArrayList;
 import java.util.List;
 
 @Service
 public class UserService {
-    public List<User> getUsers(){
+
+    public User getUser(Long id){
+        User user = new User();
+        user.setId(id);
+        user.setName("lk");
+        user.setAge(18);
+        return user;
+    }
+
+
+    public List<User> queryUsers(){
        List<User> users = new ArrayList<>();
-       users.add(new User("mike","mike@mail.com", "188111111"));
-       users.add(new User("john","john@mail.com", "133222222"));
-       users.add(new User("tom","tom@mail.com", "199222222"));
+       User u1 = new User();
+       u1.setName("John");
+       u1.setEmail("john@gmail.com");
+       u1.setPhone("123456789");
+       users.add(u1);
+       User u2 = new User();
+       u2.setName("Mike");
+       u2.setEmail("mike@gmail.com");
+       u2.setPhone("123456789");
+       users.add(u2);
        return users;
     }
+
+
+    public User createUser(User user){
+        user.setId(22L);
+        return user;
+    }
+
+    public User updateUser(Long id, User user){
+        user.setId(id);
+        return user;
+    }
+
 }