VueElement UI 实现视频上传 - 技术经验

Vue+Element UI 实现视频上传

来源：cnblogs　　作者：Crazy Struggle　　时间：2019/7/25 8:45:20　　对本文有异议

一、前言

项目中需要提供一个视频介绍，使用户能够快速、方便的了解如何使用产品以及注意事项。

前台使用Vue+Element UI中的el-upload组件实现视频上传及进度条展示，后台提供视频上传API并返回URL。

二、具体实现

1、效果图展示

2、HTML代码

<div class="album albumvideo">
    <div>
        <p class="type_title">
            <span>视频介绍</span>
        </p>
        <div class="pic_img">
            <div class="pic_img_box">
                <el-upload class="avatar-uploader"
                           action="上传地址"
                           v-bind:data="{FoldPath:'上传目录',SecretKey:'安全验证'}"
                           v-bind:on-progress="uploadVideoProcess"
                           v-bind:on-success="handleVideoSuccess"
                           v-bind:before-upload="beforeUploadVideo"
                           v-bind:show-file-list="false">
                    <video v-if="videoForm.showVideoPath !='' && !videoFlag"
                           v-bind:src="videoForm.showVideoPath"
                           class="avatar video-avatar"
                           controls="controls">
                        您的浏览器不支持视频播放
                    </video>
                    <i v-else-if="videoForm.showVideoPath =='' && !videoFlag"
                       class="el-icon-plus avatar-uploader-icon"></i>
                    <el-progress v-if="videoFlag == true"
                                 type="circle"
                                 v-bind:percentage="videoUploadPercent"
                                 style="margin-top:7px;"></el-progress>
                </el-upload>
            </div>
        </div>
    </div>
    <p class="Upload_pictures">
        <span></span>
        <span>最多可以上传1个视频，建议大小50M，推荐格式mp4</span>
    </p>
</div>

3、JS代码

<script>
    var vm = new Vue({
        el: '#app',
        data: {
            videoFlag: false,
            //是否显示进度条
            videoUploadPercent: "",
            //进度条的进度，
            isShowUploadVideo: false,
            //显示上传按钮
            videoForm: {
                showVideoPath: ''
            }
        },
        methods: {
            //上传前回调
            beforeUploadVideo(file) {
                var fileSize = file.size / 1024 / 1024 < 50;
                if (['video/mp4', 'video/ogg', 'video/flv', 'video/avi', 'video/wmv', 'video/rmvb', 'video/mov'].indexOf(file.type) == -1) {
                    layer.msg("请上传正确的视频格式");
                    return false;
                }
                if (!fileSize) {
                    layer.msg("视频大小不能超过50MB");
                    return false;
                }
                this.isShowUploadVideo = false;
            },
            //进度条
            uploadVideoProcess(event, file, fileList) {
                this.videoFlag = true;
                this.videoUploadPercent = file.percentage.toFixed(0) * 1;
            },
            //上传成功回调
            handleVideoSuccess(res, file) {
                this.isShowUploadVideo = true;
                this.videoFlag = false;
                this.videoUploadPercent = 0;
                
                //前台上传地址
                //if (file.status == 'success' ) {
                //    this.videoForm.showVideoPath = file.url;
                //} else {
                //     layer.msg("上传失败，请重新上传");
                //}
 
                //后台上传地址
                if (res.Code == 0) {
                    this.videoForm.showVideoPath = res.Data;
                } else {
                    layer.msg(res.Message);
                }
            }
        }
    })
</script>

4、后台代码

/// <summary>
/// 上传视频
/// </summary>
/// <returns></returns>
[HttpPost]
public IHttpActionResult UploadVideo()
{
    try
    {
        var secretKey = HttpContext.Current.Request["SecretKey"];
        if (secretKey == null || !_secretKey.Equals(secretKey))
            return Ok(new Result(-1, "验证身份失败"));
        var files = HttpContext.Current.Request.Files;
        if (files == null || files.Count == 0)
            return Ok(new Result(-1, "请选择视频"));
        var file = files[0];
        if (file == null)
            return Ok(new Result(-1, "请选择上传的视频"));
        //存储的路径             
        var foldPath = HttpContext.Current.Request["FoldPath"];
        if (foldPath == null)
            foldPath = "/Upload";
        foldPath = "/UploadFile" + "/" + foldPath;
        if (foldPath.Contains("../"))
            foldPath = foldPath.Replace("../", "");
        //校验是否有该文件夹 
        var mapPath = AppDomain.CurrentDomain.BaseDirectory + foldPath;
        if (!Directory.Exists(mapPath))
            Directory.CreateDirectory(mapPath);
        //获取文件名和文件扩展名
        var extension = Path.GetExtension(file.FileName);
        if (extension == null || !".ogg|.flv|.avi|.wmv|.rmvb|.mov|.mp4".Contains(extension.ToLower()))
            return Ok(new Result(-1, "格式错误"));
        string newFileName = Guid.NewGuid() + extension;
        string absolutePath = string.Format("{0}/{1}", foldPath, newFileName);
        file.SaveAs(AppDomain.CurrentDomain.BaseDirectory + absolutePath);
       
        string fileUrl = string.Format("{0}://{1}{2}", HttpContext.Current.Request.Url.Scheme, HttpContext.Current.Request.Url.Authority, absolutePath);
        return Json(new ResultData(0, "success",fileUrl));
    }
    catch (Exception e)
    {
        Logger.Error("UploadVideo is error", GetType(), e);
        return Json(new Result(-1, "上传失败"));
    }
}