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+<template>
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+ <el-form>
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+ <el-upload ref="fileList"
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+ :disabled="disabled"
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+ :action="uploadImgUrl"
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+ list-type="picture-card"
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+ :on-success="handleUploadSuccess"
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+ :before-upload="handleBeforeUpload"
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+ :limit="limit"
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+ :on-error="handleUploadError"
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+ :on-exceed="handleExceed"
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+ name="file"
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+ :on-remove="handleRemove"
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+ :show-file-list="true"
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+ :headers="headers"
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+ :file-list="fileList"
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+ :on-preview="handlePictureCardPreview"
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+ :class="{hide: this.fileList.length >= this.limit}"
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+ >
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+
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+ <div slot="file" slot-scope="{file}" >
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+ <img
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+ style="width: 100%;
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+ height: 147px;"
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+ src="@/assets/images/noimage.png"
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+ @click="handlePictureCardPreview(file)"
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+ > <i class="el-icon-plus abs"></i>
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+ </div>
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+ <i class="el-icon-plus abs">
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+ </i>
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+ </el-upload>
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+
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+ <!-- 上传提示 -->
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+ <div class="el-upload__tip" slot="tip" v-if="showTip">
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+ 请上传
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+ <template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template>
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+ <template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
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+ 的文件
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+ </div>
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+<!-- <video v-if="dialogVisible"-->
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+<!-- :src="dialogImageUrl"-->
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+<!-- style="display: block; max-width: 100%; margin: 0 auto" controls="controls"/>-->
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+<!-- <el-image-viewer-->
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+<!-- v-if="dialogVisible"-->
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+<!-- zIndex="9999"-->
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+<!-- :on-close="closeImgViewer"-->
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+<!-- :url-list="fileList.map(t => t.url)"-->
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+<!-- :initial-index="imgIndex"-->
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+<!-- />-->
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+ <el-dialog
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+ :visible.sync="dialogVisible"
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+ title="预览"
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+ width="800px"
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+ append-to-body
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+ >
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+ <video
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+ :src="dialogImageUrl"
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+ id="video"
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+ autoplay
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+ loop
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+ muted
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+ controls
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+ style="display: block; max-width: 800px; max-height: 600px; margin: 0 auto" controls="controls"/>
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+<!-- <video v-else-->
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+<!-- :src="dialogImageUrl"-->
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+<!-- :preview-src-list="[dialogImageUrl]"-->
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+<!-- style="display: block; max-width: 70%; margin: 0 auto"-->
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+<!-- />-->
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+
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+ </el-dialog>
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+ </el-form>
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+</template>
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+
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+<script>
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+import { getToken } from "@/utils/auth";
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+import ElImageViewer from "element-ui/packages/image/src/image-viewer";
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+export default {
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+ components: {
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+ ElImageViewer,
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+ },
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+ props: {
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+ value: [String, Object, Array],
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+ // 图片数量限制
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+ limit: {
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+ type: Number,
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+ default: 5,
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+ },
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+ // 大小限制(MB)
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+ fileSize: {
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+ type: Number,
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+ default: 5,
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+ },
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+ disabled:{
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+ type:Boolean,
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+ default: false
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+ },
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+ // 文件类型, 例如['png', 'jpg', 'jpeg']
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+ fileType: {
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+ type: Array,
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+ default: () => ["png", "jpg", "jpeg","mp4"],
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+ },
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+ // 是否显示提示
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+ isShowTip: {
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+ type: Boolean,
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+ default: true
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+ }
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+ },
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+ data() {
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+ return {
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+ dialogImageUrl: "",
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+ dialogVisible: false,
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+ hideUpload: false,
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+ type:"",
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+ baseUrl: process.env.VUE_APP_BASE_API,
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+ uploadImgUrl: process.env.VUE_APP_BASE_API + "/obs", // 上传的图片服务器地址
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+ headers: {
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+ Authorization: "Bearer " + getToken(),
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+ },
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+ imgIndex:0,
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+ fileList: []
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+ };
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+ },
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+ watch: {
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+ value: {
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+ handler(val) {
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+ if (val) {
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+ // 首先将值转为数组
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+ const list = Array.isArray(val) ? val : this.value.split(',');
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+ // 然后将数组转为对象数组
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+ this.fileList = list.map(item => {
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+ if (typeof item === "string") {
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+ item =this.getVideoCover({ name: item, url: item ,suffix:item.substring(item.lastIndexOf('.')+1)})
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+ }
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+ return item;
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+ });
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+ } else {
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+ this.fileList = [];
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+ return [];
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+ }
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+ },
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+ deep: true,
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+ immediate: true
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+ }
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+ },
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+ computed: {
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+ // 是否显示提示
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+ showTip() {
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+ return this.isShowTip && (this.fileType || this.fileSize);
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+ },
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+ },
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+ methods: {
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+ /**
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+ * @description 关闭图片查看器
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+ */
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+ closeImgViewer() {
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+ this.dialogVisible = false;
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+ },
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+ getVideoCover(file) {
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+ const canvas = document.createElement('canvas');
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+ const video = document.createElement('video');
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+ document.body.appendChild(video);
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+ video.setAttribute('crossOrigin', 'anonymous');
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+ canvas.width = video.clientWidth ? video.clientWidth : 320;
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+ canvas.height = video.clientHeight ? video.clientHeight : 320;
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+ //video.style.height = '0';
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+ video.addEventListener('loadeddata', () => {
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+ canvas.getContext('2d').drawImage(video, 0, 0, canvas.width, canvas.height);
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+ let b64 = canvas.toDataURL('image/png');
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+ let videoUrl = file.url;
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+ file.url = b64; // file的url储存封面图片
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+ file.videoUrl = videoUrl; // file的videoUrl储存视频
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+ document.body.removeChild(video);
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+ });
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+ video.setAttribute('src', file.url);
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+ // video.oncanplay =function getVideoCover() {
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+ // canvas.width = video.clientWidth ? video.clientWidth : 320; // 获取视频宽度
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+ // canvas.height = video.clientHeight ? video.clientHeight : 320; //获取视频高度
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+ // // 利用canvas对象方法绘图
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+ // ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
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+ // // 转换成base64形式
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+ // let videoFirstimgsrc = canvas.toDataURL("image/png"); // 截取后的视频封面
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+ // let videoUrl = file.url;
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+ // file.url = videoFirstimgsrc; // file的url储存封面图片
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+ // file.videoUrl = videoUrl; // file的videoUrl储存视频
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+ //
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+ // video.remove();
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+ // canvas.remove();
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+ // };
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+ console.log(video)
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+ return file;
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+ },
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+ /**
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+ * 查看详情时附件回显
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+ **/
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+ setFileList(_fileList) {
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+ let _self = this;
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+ if (_self.$utils.isNotEmpty(_fileList)) {
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+ for (let obj of _fileList) {
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+ //视频附件，获取第一帧画面作为 封面展示
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+ let _fileName = obj.name;
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+ //视频附件，获取第一帧画面作为 封面展示
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+ this.getVideoCover(obj);
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+
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+ }
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+ }
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+ _self.fileList = _fileList; //fileList 为 Element file-list 参数值
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+ },
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+ // 删除图片
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+ handleRemove(file, fileList) {
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+ const findex = this.fileList.map(f => f.url).indexOf(file.url);
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+ if(findex > -1) {
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+ if (file.url!=null){
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+ // picDel({picUrl:file.url}).then(res=>{})
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+ this.fileList.splice(findex, 1);
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+ }
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+ }
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+ this.$emit("input", this.fileList);
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+ },
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+ // 上传成功回调
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+ handleUploadSuccess(res) {
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+ if (res.code == 200) {
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+ this.fileList.push({ name: res.data.fileName, url: res.data.url });
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+ //视频附件，获取第一帧画面作为 封面展示
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+ // this.getVideoCover(file);
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+ this.$emit("input", this.fileList);
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+ this.loading.close();
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+ } else {
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+ this.$message.error(res.msg);
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+ this.loading.close();
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+ }
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+ },
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+ // 上传前loading加载
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+ handleBeforeUpload(file) {
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+ let isImg = false;
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+ if (this.fileType.length) {
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+ let fileExtension = "";
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+ if (file.name.lastIndexOf(".") > -1) {
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+ fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
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+ }
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+ isImg = this.fileType.some((type) => {
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+ if (file.type.indexOf(type) > -1) return true;
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+ if (fileExtension && fileExtension.indexOf(type) > -1) return true;
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+ return false;
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+ });
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+ } else {
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+ isImg = file.type.indexOf("image") > -1;
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+ }
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+
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+ if (!isImg) {
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+ this.$message.warning(
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+ `文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`
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+ );
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+ return false;
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+ }
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+ if (this.fileSize) {
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+ const isLt = file.size / 1024 / 1024 < this.fileSize;
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+ if (!isLt) {
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+ this.$message.warning(`上传头像图片大小不能超过 ${this.fileSize} MB!`);
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+ return false;
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+ }
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+ }
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+ this.loading = this.$loading({
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+ lock: true,
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+ text: "上传中",
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+ background: "rgba(0, 0, 0, 0.7)",
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+ });
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+ },
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+ // 文件个数超出
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+ handleExceed() {
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+ this.$message.warning(`上传文件数量不能超过 ${this.limit} 个!`);
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+ },
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+ // 上传失败
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+ handleUploadError(res) {
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+ this.$message({
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+ type: "error",
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+ message: "上传失败",
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+ });
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+ this.loading.close();
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+ },
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+ // 预览
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+ handlePictureCardPreview(file) {
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+ this.dialogImageUrl = file.url;
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+ this.dialogVisible = true;
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+ this.type=file.name.slice(file.name.lastIndexOf(".")+1);
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+ this.getVideoCover(file);
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+ console.log(this.type)
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+ },
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+ // 对象转成指定字符串分隔
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+ listToString(list, separator) {
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+ let strs = "";
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+ separator = separator || ",";
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+ for (let i in list) {
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+ strs += list[i].url + separator;
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+ }
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+ return strs != '' ? strs.substr(0, strs.length - 1) : '';
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+ }
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+ }
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+};
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+</script>
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+<style scoped lang="scss">
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+// .el-upload--picture-card 控制加号部分
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+::v-deep.hide .el-upload--picture-card {
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+ display: none;
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+}
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+// 去掉动画效果
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+::v-deep .el-list-enter-active,
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+::v-deep .el-list-leave-active {
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+ transition: all 0s;
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+}
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+
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+::v-deep .el-list-enter, .el-list-leave-active {
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+ opacity: 0;
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+ transform: translateY(0);
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+}
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+</style>
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+
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wangtong
