Vue的移动端多图上传插件vue-easy-uploader的示例代码

index.js # 主入口文件store.js # 状态管理uploader.vue # 上传组件

import uploader from './uploader'import store from './store'let plugin = {}plugin.install = function (_Vue, _store) { _Vue.component('uploader', uploader) _store.registerModule('imgstore', store)}export default plugin

import Vue from 'vue'import Vuex from 'vuex'import uploader from 'vue-easy-uploader' let store = new Vuex.Store({})Vue.use(uploader, store)

img_upload_cache # 上传文件缓存img_paths # 上传状态，包括 ready selected uploading finishedimg_status # 上传后的路径反馈数组(数据结构为Set集合)

ready # 上传开始前的准备状态 selected # 已选择上传文件 uploading # 开始上传 finished # 上传完毕 

methods: { upload () {  this.$store.commit('set_img_status', 'uploading') }, submit () {  // some code }}computed: { ...mapState({  imgStatus: state => state.imgstore.img_status })},watch: { imgStatus () {  if (this.imgStatus === 'finished') {   this.submit()  } }}

// Created by quanzaiyu on 2017/10/25 0025.var state = { img_upload_cache: [], img_paths: [], img_status: 'ready' // 上传状态 ready selected uploading finished}const actions = {}const getters = {}const mutations = { set_img_upload_cache (state, arg) {  state.img_upload_cache = arg }, set_img_paths (state, arg) {  state.img_paths = arg }, set_img_status (state, arg) {  state.img_status = arg }}export default { state, mutations, actions, getters}

<template> <div class="imgUploader">  <div class="file-list">   <section    v-for="(file, index) in imgStore" :key="index"    class="file-item draggable-item"   >    <img :src="file.src" alt="" ondragstart="return false;">    <span class="file-remove" @click="remove(index)">+</span>   </section>   <section class="file-item" v-if="imgStatus !== 'finished'">    <div class="add">     <span>+</span>     <input type="file" pictype='30010003' multiple      data-role="none" accept="image/*"      @change="selectImgs"      ref="file"     >    </div>   </section>  </div>  <div class="uploadBtn">   <section>    <span v-if="imgStore.length > 0" class="empty"     @click="empty">      {{imgStatus === 'finished' ? '重新上传' : '清空'}}    </span>   </section>  </div> </div></template><script>import { mapState } from 'vuex'export default { props: ['url'], data () {  return {   files: [], // 文件缓存   index: 0 // 序列号  } }, computed: {  ...mapState({   imgStore: state => state.imgstore.img_upload_cache,   imgPaths: state => state.imgstore.img_paths,   imgStatus: state => state.imgstore.img_status  }) }, methods: {  // 选择图片  selectImgs () { # ①   let fileList = this.$refs.file.files   for (let i = 0; i < fileList.length; i++) {    // 文件过滤    if (fileList[i].name.match(/.jpg|.gif|.png|.bmp/i)) {      let item = {      key: this.index++,      name: fileList[i].name,      size: fileList[i].size,      file: fileList[i]     }     // 将图片文件转成BASE64格式     let reader = new FileReader() # ②     reader.onload = (e) => {      this.$set(item, 'src', e.target.result)     }     reader.readAsDataURL(fileList[i])     this.files.push(item)     this.$store.commit('set_img_upload_cache', this.files) // 存储文件缓存     this.$store.commit('set_img_status', 'selected') // 更新文件上传状态    }   }  },  // 上传图片  submit () {   let formData = new FormData() # ③   this.imgStore.forEach((item, index) => {    item.name = 'imgFiles[' + index + ']' # ④    formData.append(item.name, item.file)   })   formData.forEach((v, k) => console.log(k, ' => ', v))   // 新建请求   const xhr = new XMLHttpRequest() # ⑤   xhr.open('POST', this.url, true)   xhr.send(formData)   xhr.onload = () => {    if (xhr.status === 200 || xhr.status === 304) {     let datas = JSON.parse(xhr.responseText)     console.log('response: ', datas)     // 存储返回的地址     let imgUrlPaths = new Set()  # ⑥     datas.forEach(e => { // error === 0为成功状态      e.error === 0 && imgUrlPaths.add(e.url)     })     this.$store.commit('set_img_paths', imgUrlPaths) // 存储返回的地址     this.files = [] // 清空文件缓存     this.index = 0 // 初始化序列号     this.$store.commit('set_img_status', 'finished') // 更新文件上传状态    } else {     alert(`${xhr.status} 请求错误!`)    }   }  },  // 移除图片  remove (index) {   this.files.splice(index, 1)   this.$store.commit('set_img_upload_cache', this.files) // 更新存储文件缓存  },  // 清空图片  empty () {   this.files.splice(0, this.files.length)   this.$store.commit('set_img_upload_cache', this.files) // 更新存储文件缓存   this.$store.commit('set_img_paths', [])  } }, beforeCreate () {  this.$store.commit('set_img_status', 'ready') // 更新文件上传状态 }, destroyed () {  this.$store.commit('set_img_upload_cache', [])  this.$store.commit('set_img_paths', []) }, watch: {  imgStatus () {   if (this.imgStatus === 'uploading') {    this.submit()  # ⑦   }  },  imgStore () {   if (this.imgStore.length <= 0) {    this.$store.commit('set_img_status', 'ready') // 更新文件上传状态   }  } }}</script><style lang="less" scoped>...</style>