javaEEday05-请求响应-响应-@ResponseBody&统一响应结果

springboot-web-req-resp/src/main/java/com/inmind/controller/ResponseController.java

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+package com.inmind.controller;
+
+import com.inmind.pojo.Address;
+import com.inmind.pojo.Result;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+public class ResponseController {
+
+    //响应字符串
+    @RequestMapping("/hello")
+    public Result hello(){
+        System.out.println("hello world");
+        return Result.success("hello world");
+    }
+
+    //响应对象
+    @RequestMapping("/getAddress")
+    public Result getAddress(){
+        Address address = new Address("北京", "北京");
+        return Result.success(address);
+    }
+    //响应集合
+    @RequestMapping("/listAddress")
+    public Result listAddress(){
+        Address address1 = new Address("北京", "北京");
+        Address address2 = new Address("江苏", "常州");
+        return Result.success(List.of(address1,address2));
+    }
+}

springboot-web-req-resp/src/main/java/com/inmind/pojo/Result.java

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+package com.inmind.pojo;
+
+/**
+ * 统一响应结果封装类
+ */
+public class Result {
+    private Integer code ;//1 成功 , 0 失败
+    private String msg; //提示信息
+    private Object data; //数据 date
+
+    public Result() {
+    }
+    public Result(Integer code, String msg, Object data) {
+        this.code = code;
+        this.msg = msg;
+        this.data = data;
+    }
+    public Integer getCode() {
+        return code;
+    }
+    public void setCode(Integer code) {
+        this.code = code;
+    }
+    public String getMsg() {
+        return msg;
+    }
+    public void setMsg(String msg) {
+        this.msg = msg;
+    }
+    public Object getData() {
+        return data;
+    }
+    public void setData(Object data) {
+        this.data = data;
+    }
+
+    public static Result success(Object data){
+        return new Result(1, "success", data);
+    }
+    public static Result success(){
+        return new Result(1, "success", null);
+    }
+    public static Result error(String msg){
+        return new Result(0, msg, null);
+    }
+
+    @Override
+    public String toString() {
+        return "Result{" +
+                "code=" + code +
+                ", msg='" + msg + '\'' +
+                ", data=" + data +
+                '}';
+    }
+}