本文实例为大家分享了vue实现图片上传预览的具体代码，供大家参考，具体内容如下

效果图

html结构

<ul class="gallery-window-map" style="flex-wrap:wrap;"> <!--点击上传按钮--> <li class="house-pic-item" v-if="!(!item.isNew&&editBtnType[index])" @click="houseUpload(index)"> <div class="pic-box"> <span class="iconfont icon-zengjia"></span> <h5 class="btn-tit">点击上传</h5> </div> </li> <!--展示区域--> <viewer :images="item.imgUrl"> <li class="house-pic-item" v-for="(picItem, picIndex) in item.imgUrl" :key="picIndex"> <img :src="picItem" alt="" :key="picItem" width="120" height="90" :ref="'showImg_'+index"> <div class="mask"> <div class="ico-box"> <span class="font-btn" @click="clickWatchImg('showImg_'+index,picIndex)"> <i class="iconfont icon-fangda"></i> </span> <span class="font-btn" v-if="!(!item.isNew&&editBtnType[index])" @click="delHouseImage(index,picIndex)"> <i class="iconfont icon-shanchu"></i> <i class="line"></i> </span> </div> </div> </li> </viewer></ul>

css样式

.gallery-window-map{ display: -webkit-box; display: -ms-flexbox; display: flex; margin-top: 10px;}.house-pic-item { position: relative; display: inline-block; margin-right: 13px; width: 120px; height: 90px; background-color: #e3e3e3;}.pic-box { width: 100%; text-align: center;}.icon-zengjia { position: relative; top: 12px; font-size: 26px; color: #b2b2b2;}.btn-tit { height: 38px; line-height: 38px; font-size: 12px; color: #999;}.mask { display: none; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(34, 34, 34, 0.6);}.font-btn { display: inline-block; height: 40px; width: 50%; padding: 0 20px; -webkit-box-sizing: border-box; box-sizing: border-box;}.font-btn:last-child { position: relative;}.icon-fangda,.icon-shanchu { font-size: 22px; color: #fff;}.line { content: ''; display: inline-block; position: absolute; left: 0; top: 10px; width: 1px; height: 20px; background: #fff;}/** * 模拟点击上传图片按钮* @index 当前操作的户型box的索引*/houseUpload(index) { this.$refs.houseTypeLoad[index].click()},/** * 上传图片到服务器* @index 当前操作的户型box的索引*/upLoadHouse(e, index) { let _that = this const file = e.target.files[0] if (!file) { return } new ImageCompressor(file, { quality: 0.9, maxWidth: 2000, maxHeight: 2000, success(result) { // debugger const formData = new FormData() formData.append('file', result, result.name) formData.append('watermark', false) // Send the compressed image file to server with XMLHttpRequest. if (result.size > 1 * 1024 * 1024 || result.size < 3 * 1024) { _that.$message('图片大小要在3K~1M之间') return } else { _that.$ajax.post('/img/upload', formData).then(res => { res = res.data if (res.images && res.images.length > 0) { if (res.images[0].src !== 'file size is too small') { let item = res.images[0].src console.log(item) _that.houseTypeForm[index].imgUrl.unshift(item) } } }) } }, error(e) { console.log(e.message) } }) },/** * 打开图片查看器 */clickWatchImg(str, picIndex) {console.log('=================')console.log(picIndex)console.log(this.$refs[str][picIndex])this.$refs[str][picIndex].click()}, /** * 删除指定图片，操作表单数据* @index 当前操作的户型box的索引* @picIndex 当前操作的图片索引*/delHouseImage(index, picIndex) { this.houseTypeForm[index].imgUrl.splice(picIndex, 1)},

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