Song.Site/VideoUrl.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using WeiSha.Common;
using Song.ServiceInterfaces;
using Song.Entities;

namespace Song.Site
{
    /// <summary>
    /// 视频播放地址，由此转码
    /// </summary>
    public partial class VideoUrl : System.Web.UI.Page
    {
        //附件的as_uid，如果用参数传递了，就不再取文件名了
        string uid = WeiSha.Common.Request.QueryString["uid"].String;
        protected void Page_Load(object sender, EventArgs e)
        {
            if (string.IsNullOrWhiteSpace(uid)) uid = WeiSha.Common.Request.Page.Name;
            //提示消息
            string msg = string.Empty;
            //是否要播放
            bool isPlay = judge(uid, out msg);
            if (!isPlay)
            {
                Response.Write(msg);
                Response.End();
            }
            else
            {
                //***************如果可以播放
                Song.Entities.Accessory acc = Business.Do<IAccessory>().GetSingle(uid);
                if (acc == null)
                {
                    Response.Write("视频不存在！");
                    Response.End();
                }
                else
                {
                    //视频文件
                    string video = Upload.Get[acc.As_Type].Physics + acc.As_FileName;
                    //如果不是手机端
                    if (!WeiSha.Common.Browser.IsMobile)
                    {
                        //如果不存在，则后缀名改成mp4的试试
                        if (!System.IO.File.Exists(video))
                            video = reExstname(video, "mp4");
                    }
                    else
                    {
                        video = reExstname(video, "mp4");
                    }
                    HttpContext context = System.Web.HttpContext.Current;
                    context.Response.Clear();
                    context.Response.ClearContent();
                    context.Response.ClearHeaders();
                    context.Response.AddHeader("Content-Disposition", "attachment;filename=" + acc.As_FileName);