本文实例为大家分享了Vue formData实现图片上传的具体代码，供大家参考，具体内容如下

import Vue from 'vue' /** * 图片上传 * 已注入所有Vue实例， * template模板里调用 $uploadFile(id) * 组件方法里调用 this.$uploadFile(id) */const uploadFile = (id) => { let promise = new Promise((resolve, reject) => { let file = null let el = null let i = 0 let formData = new FormData() document.getElementById(id).click() el = document.getElementById(id) el.addEventListener('change', function (e) { i++ if (i !== 1) { return false } else { file = this.files[0] formData.append('file', file) formData.append('fileType', 'IMAGE') // 数据请求 Vue.axiosfrom(Vue.api.upload, formData).then(res => { // 返回图片url resolve(res) }).catch(err => { reject(err) }) } }) }) return promise} Vue.prototype.$uploadFile = uploadFile

axios请求头设置

import Vue from 'vue'import { baseURL } from '@/config/env'import axios from 'axios' // formdata 请求const axiosT = axios.create({ baseURL: baseURL, headers: { 'Content-Type': 'multipart/form-data' }}) const XHR = ({method = 'post', qs = true, loading = false, loginRequire = true, reqComplex = false, reqContentType = 'urlencoded'}) => { // 带请求进度条成功方法 const sucFunX = res => { return res.data } // 成功执行方法 const sucFunC = res => { return res.data } // 带请求进度条失败方法 const errFunX = err => { console.log(err, NProgress.done()) } // 失败执行访求 const errFunC = err => { console.log(err) } // 判断是否需要Longing const sucFun = loading ? sucFunX : sucFunC // 判断是否需要Longing const errFun = loading ? errFunX : errFunC return {user, sucFun, errFun}} // 表单请求 图片上传const axiosfrom = function (url = '', data = {}) { let {sucFun, errFun} = XHR({loading: false}) return axiosT.post(url, data).then(sucFun).catch(errFun)}// 表单请求Vue.prototype.$axiosfrom = axiosfromVue.axiosfrom = axiosfrom

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。