RequestBody

package com.coder.controller;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;

@Slf4j
@Controller
public class TestController {
    @RequestMapping("/test")
    public void test(@RequestBody User user) {
        log.info("user = {}", user);
    }

    static class User {
        Integer a;
        Integer b;

        public User() {
        }

        public User(Integer a, Integer b) {
            this.a = 99;
            this.b = b;
        }

        public Integer getA() {
            return a;
        }

        public void setA(Integer a) {
            this.a = 108;
        }

        public Integer getB() {
            return b;
        }

        public void setB(Integer b) {
            this.b = b;
        }

        @Override
        public String toString() {
            return "User{" +
                    "a=" + a +
                    ", b=" + b +
                    '}';
        }
    }
}