SpringBoot 传递 List 参数

方法1：前端传 JSON 字符串，后端再解析 JSON。

前端

let ids = [1, 2, 3]

post('/api/test/', {
    category: 1,
    ids: JSON.stringify(ids)	// 使用 JSON
})
...

import axios from 'axios'
import qs from 'qs'

axios.defaults.timeout = 10000

var header = {
  'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8'
}

export function post (url, params, headers = header) {
  return new Promise((resolve, reject) => {
    axios.post(url, qs.stringify(params), {
      headers: headers
    }).then(res => {
      resolve(res.data)
    }).catch(err => {
      reject(err.data)
    })
  })
}

后端

@PostMapping("/test")
public String test(@RequestParam("category") int category,
                    @RequestParam("ids") String idsStr) {
    System.out.println(category);
    List<Integer> ids = JSON.parseArray(idsStr, Integer.class);
    System.out.println(ids);

    return "ok";
}

1
[1, 2, 3]

方法2：使用 @RequestBody
前端

post2('/api/test/', [{
        account: '11111111111',
        password: '000000'
      }, {
        account: '11111111111',
        password: '000000'
      }], {
    'Content-Type': 'application/json'
})

export function post2 (url, params, headers = header) {
  return new Promise((resolve, reject) => {
    axios.post(url, params, {
      headers: headers
    }).then(res => {
      resolve(res.data)
    }).catch(err => {
      reject(err.data)
    })
  })
}

后端

@PostMapping("/test")
public String test(@RequestBody List<User> users) {
    System.out.println(users);
    return "ok";
}

public class User {
    private int id;
    private String account;
    private String password;
   ...
}

来源：CSDN

作者：W.T.F.

链接：https://blog.csdn.net/fcku_88/article/details/103850399

标签

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