重新整理的工程

Chapter3-1-1/src/main/java/com/didispace/Application.java

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+package com.didispace;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ *
+ * @author 程序猿DD
+ * @version 1.0.0
+ * @blog http://blog.didispace.com
+ *
+ */
+@SpringBootApplication
+public class Application {
+
+	public static void main(String[] args) {
+
+		SpringApplication.run(Application.class, args);
+
+	}
+
+}

Chapter3-1-1/src/main/java/com/didispace/domain/User.java

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+package com.didispace.domain;
+
+
+
+/**
+ *
+ * @author 程序猿DD
+ * @version 1.0.0
+ * @blog http://blog.didispace.com
+ *
+ */
+public class User {
+
+    private Long id;
+    private String name;
+    private Integer age;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+}

Chapter3-1-1/src/main/java/com/didispace/web/HelloController.java

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+package com.didispace.web;
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ *
+ * @author 程序猿DD
+ * @version 1.0.0
+ * @blog http://blog.didispace.com
+ *
+ */
+@RestController
+public class HelloController {
+
+    @RequestMapping("/hello")
+    public String index() {
+        return "Hello World";
+    }
+
+}

Chapter3-1-1/src/main/java/com/didispace/web/UserController.java

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+package com.didispace.web;
+
+import com.didispace.domain.User;
+
+import java.util.*;
+
+import org.springframework.web.bind.annotation.*;
+
+/**
+ *
+ * @author 程序猿DD
+ * @version 1.0.0
+ * @blog http://blog.didispace.com
+ *
+ */
+@RestController
+@RequestMapping(value="/users")     // 通过这里配置使下面的映射都在/users下，可去除
+public class UserController {
+
+    static Map<Long, User> users = Collections.synchronizedMap(new HashMap<Long, User>());
+
+    @RequestMapping(value="/", method=RequestMethod.GET)
+    public List<User> getUserList() {
+        // 处理"/users/"的GET请求，用来获取用户列表
+        // 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
+        List<User> r = new ArrayList<User>(users.values());
+        return r;
+    }
+
+    @RequestMapping(value="/", method=RequestMethod.POST)
+    public String postUser(@ModelAttribute User user) {
+        // 处理"/users/"的POST请求，用来创建User
+        // 除了@ModelAttribute绑定参数之外，还可以通过@RequestParam从页面中传递参数
+        users.put(user.getId(), user);
+        return "success";
+    }
+
+    @RequestMapping(value="/{id}", method=RequestMethod.GET)
+    public User getUser(@PathVariable Long id) {
+        // 处理"/users/{id}"的GET请求，用来获取url中id值的User信息
+        // url中的id可通过@PathVariable绑定到函数的参数中
+        return users.get(id);
+    }
+
+    @RequestMapping(value="/{id}", method=RequestMethod.PUT)
+    public String putUser(@PathVariable Long id, @ModelAttribute User user) {
+        // 处理"/users/{id}"的PUT请求，用来更新User信息
+        User u = users.get(id);
+        u.setName(user.getName());
+        u.setAge(user.getAge());
+        users.put(id, u);
+        return "success";
+    }
+
+    @RequestMapping(value="/{id}", method=RequestMethod.DELETE)
+    public String deleteUser(@PathVariable Long id) {
+        // 处理"/users/{id}"的DELETE请求，用来删除User
+        users.remove(id);
+        return "success";
+    }
+
+}