vue中用H5实现文件上传的方法实例代码

整理文档，搜刮出一个vue中用H5实现文件上传的方法实例代码，稍微整理精简一下做下分享

整理文档，搜刮出一个vue中用H5实现文件上传的方法实例代码，稍微整理精简一下做下分享。

1.图片上传

 <img v-if="personInfo.photoUrl" :src="headPreFix + personInfo.photoUrl" style="height:126px;max-width:133px;margin: 25px 0;">
 <img v-else src="../../assets/default.png" style="height:126px;max-width:133px;margin: 25px 0;">

<form id="form1" enctype="multipart/form-data" method="post" action="">
 <div style="height:0px; overflow:hidden; position:absolute;">
 <input type="file" tabIndex="-1" accept="image/jpeg,image/x-png,image/gif" name="file" style="padding-left:10px" id="fileToUpload" @change="fileSelected()"/>
 </div>
 <button type="button" class="btn btn-default btn-xs" onclick="document.getElementById('fileToUpload').click()">上传</button>
 <button type="button" class="btn btn-default btn-xs" @click="deleteImg">删除</button>
 </form>

// 上传图片
 'fileSelected': function () {
 var that = this
 let files = document.getElementById('fileToUpload').files
 if (files && files.length) {
 var fd = new FormData()
 fd.append('file', files[0])
 var reader = new window.FileReader()
 // 图片大小 100KB
 var fileSize = 100 * 1024
 reader.readAsDataURL(files[0])
 reader.onload = function (e) {
 if (e.target.result.length > fileSize) {
 that.$dispatch('show-alert', 'msg_1016')
 document.getElementById('fileToUpload').value = ''
 } else {
 var xhr = new XMLHttpRequest()
 xhr.addEventListener('load', that.uploadComplete, false)
 xhr.open('POST', that.$root.appBaseUrl + 'fileUpload/singleFileUpload')
 xhr.send(fd)
 }
 }
 }
 },
 // 上传成功
 'uploadComplete': function (evt) {
 this.personInfo.photoUrl = (evt.target.responseText).replace('\\', '/')
 document.getElementById('fileToUpload').value = ''
 },
 // 删除图片
 'deleteImg': function () {
 this.personInfo.photoUrl = ''
 },

computed: {
 headPreFix: function () {
 let params = window.localdicts.dicts.ph_params.systemParam
 if (params.storageType === 1) {
 return params.storageUrl
 }
 return this.$root.appBaseUrl
 }
}

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脚本之家。