package com.example.demo.entity;
 
import lombok.Data;
import java.util.List;
 
@Data
public class User {
    private String name;
    private Integer age;
    private String[] password;
    private List<Integer> scoreArray;
}

package com.example.demo.entity;
 
import lombok.Data;
import java.io.Serializable;
 
@Data
public class Account implements Serializable {
    private String phoneNum;
    private String[] emails;
}

package com.example.demo.controller;
 
import com.example.demo.entity.User;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
 
import java.util.Arrays;
import java.util.List;
 
@RequestMapping("/json")
@RestController
public class JsonController {
    @PostMapping("/1")
    public User setUserNoAnnotation(User user, List<String> password, Integer[] scoreArray) {
        printUser(user);
        return user;
    }
 
    @RequestMapping("/2")
    public User setUserAnnotation(@RequestBody User user) {
        printUser(user);
        return user;
    }
 
    @RequestMapping("/3")
    public User setUserAnnotation1(@RequestBody User user, @RequestParam List<String> password, Integer[] scoreArray) {
        System.out.println(password);
        if (scoreArray != null) {
            System.out.println(Arrays.asList(scoreArray));
        } else {
            System.out.println("scoreArray = null");
        }
        System.out.println();
        printUser(user);
 
        return user;
    }
 
    @RequestMapping("/4")
    public User setUserAnnotation2(@RequestBody User user, @RequestBody List<String> password, @RequestBody Integer[] scoreArray) {
        if (password != null) {
            System.out.println(password);
        } else {
            System.out.println("password = null");
        }
 
        if (scoreArray != null) {
            System.out.println(Arrays.asList(scoreArray));
        } else {
            System.out.println("scoreArray = null");
        }
        System.out.println();
        printUser(user);
        return user;
    }
 
    private void printUser(User user){
        System.out.println("name            : " + user.getName());
        System.out.println("password        : " + Arrays.asList(user.getPassword()));
        System.out.println("scoreArray      : " + user.getScoreArray());
        System.out.println("acount.phoneNum : " + user.getAccount().getPhoneNum());
        System.out.println("account.emails  : " + Arrays.asList(user.getAccount().getEmails()));
    }
}

{
    "name": "Jarvis",
    "password": [
        "ab",
        "cd"
    ],
    "scoreArray": [
        99,
        98
    ],
    "account": {
        "phoneNum": "123",
        "emails": [
            "123@qq.com",
            "456@163.com"
        ]
    }
}