我需要一次使用axios上传许多文件，因为FormData API，我挣扎了一段时间:

// const instance = axios.create(config);

let fd = new FormData();
for (const img of images) { // images is an array of File Object
  fd.append('images', img, img.name); // multiple upload
}

const response = await instance({
  method: 'post',
  url: '/upload/',
  data: fd
})

我没有指定content-type: multipart/form-data头!

你可以通过使用FormData()来发布axios数据，比如:

var bodyFormData = new FormData();

然后将字段添加到您想要发送的表单:

bodyFormData.append('userName', 'Fred');

如果你正在上传图片，你可能想要使用.append

bodyFormData.append('image', imageFile); 

然后你可以使用axios post方法(你可以相应地修改它)

axios({
  method: "post",
  url: "myurl",
  data: bodyFormData,
  headers: { "Content-Type": "multipart/form-data" },
})
  .then(function (response) {
    //handle success
    console.log(response);
  })
  .catch(function (response) {
    //handle error
    console.log(response);
  });

相关GitHub问题:

不能得到一个。post与'Content-Type': 'multipart/form-data'工作@ axios/axios

import axios from "axios";
import qs from "qs";   

const url = "https://yourapplicationbaseurl/api/user/authenticate";
    let data = {
      Email: "testuser@gmail.com",
      Password: "Admin@123"
    };
    let options = {
      method: "POST",
      headers: { "content-type": "application/x-www-form-urlencoded" },
      data: qs.stringify(data),
      url
    };
    axios(options)
      .then(res => {
        console.log("yeh we have", res.data);
      })
      .catch(er => {
        console.log("no data sorry ", er);
      });
  };

当需要从NodeJS环境中使用axios POST x-www-form- urlenencoded数据时，这应该工作得很好。您可能需要向配置中添加一个授权标头。如果端点需要身份验证，则返回头对象。

const config = {
  headers: {
    accept: 'application/json',
    'cache-control': 'no-cache',
    'content-type': 'application/x-www-form-urlencoded'
  }

const params = new URLSearchParams({key1: value1, key2: value2});

return axios
  .post(url, params.toString(), config)
  .then((response) => {
    return response.data;
  })
  .catch((error) => console.error(error));

https://www.npmjs.com/package/axios

它的工作

// "content-type": "application/x-www-form-urlencoded"， //提交

import axios from 'axios';

let requestData = {
      username : "abc@gmail.cm",
      password: "123456"
    };
   
    const url = "Your Url Paste Here";

    let options = {
      method: "POST",
      headers: { 
        'Content-type': 'application/json; charset=UTF-8',

        Authorization: 'Bearer ' + "your token Paste Here",
      },
      data: JSON.stringify(requestData),
      url
    };
    axios(options)
      .then(response => {
        console.log("K_____ res :- ", response);
        console.log("K_____ res status:- ", response.status);
      })
      .catch(error => {
        console.log("K_____ error :- ", error);
      });

获取请求

fetch(url, {
    method: 'POST',
    body: JSON.stringify(requestPayload),           
    headers: {
        'Content-type': 'application/json; charset=UTF-8',
        Authorization: 'Bearer ' + token,
    },
})
    // .then((response) => response.json()) .  // commit out this part if response body is empty
    .then((json) => {
        console.log("response :- ", json);
    }).catch((error)=>{
        console.log("Api call error ", error.message);
        alert(error.message);
});

 transformRequest: [
  function(data, headers) {
    headers["Content-Type"] = "application/json";
    return JSON.stringify(data);
  }
]

试试这个，很管用