在ASP.NET网站中实现带列表(其由xml文件控制生成)的视频播放

在ASP.NET网站中实现带列表的视频播放

方法：
用c#将视频文件上传到磁盘上时同时生产对应的xml文件，播放页面使用js读取对应的xml文件生成播放列表。
xml文件：
文件名：huojian.xml

<?xml version= " 1.0 " encoding= " utf-8 " ?> 
<media>
<pp url= " http://s-sps:801/UploadedImages/badnewfish反坦克导弹.mpeg " name= " badnewfish反坦克导弹 " /> 
<pp url= " http://s-sps:801/UploadedImages/badnewfish反坦克导弹.mpeg " name= " badnewfish反坦克导弹 " /> 
</media>

视频上传代码：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using System.Xml;
public  partial  class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (User.Identity.Name != @"banewfish\banewfish")
        {
            Label1.Text = "您当前不具有当前网页的使用权限！<br/>如需上传文件请于管理员联系！";
            try
            {
                FileUpload1.Enabled = false;
                Button1.Enabled = false;
            }
            catch (Exception exDisenabledContorls)
            {
                FileUpload1.Enabled = false;
                Button1.Enabled = false;
               
            }
            finally
            {
                FileUpload1.Enabled = false;
                Button1.Enabled = false;
            }
           
        } 

    }
    private string path;
    protected void Button1_Click(object sender, EventArgs e)
    {
        string xmlDocName = dl.SelectedValue;
        if (Page.IsPostBack)
        {
            Label1.Text = "";
            Boolean fileOK = false;
            if (FileUpload1.HasFile)
            {
                String fileExtension =
                    System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
                String[] allowedExtensions = { ".wmv", ".mpg", ".mpeg" };
                for (int i = 0; i < allowedExtensions.Length; i++)
                {
                    if (fileExtension == allowedExtensions[i])
                    {
                        fileOK = true;
                    }
                }
            }
            else Label1.Text = "文件名不能为空";
            if (fileOK)
            {

                path = Server.MapPath("~/UploadedImages/");
                try
                {
                    FileUpload1.PostedFile.SaveAs(path + FileUpload1.FileName);
                }
                catch (Exception exSaveFile)
                {
                    fileOK = false;
                    Label1.Text = "文件存储到服务器时出错，可能是文件已损坏或文件为空+" + exSaveFile.ToString();
                }
                //object[] pa = new object[] { FileUpload1.FileName.ToLower(),12, Page.User.Identity.Name.ToString() };
                //Label1.Text += InsertToDataBase(@"Data Source=s-sql;Initial Catalog=sps;Integrated Security=True", pa);
                if (fileOK)
                {
                    Label1.Text += InsertToXML(xmlDocName);
                }
            }
            else
            {
                Label1.Text = "文件类型错误，允许的文件类型为: wmv、mpg、mpeg";
            }
        }

        //Page.Response.Write(file1.value);
    }
    private string InsertToXML(string xmlDocName)
    {
        XmlDocument xmlDoc = new XmlDocument();
        string fileName = xmlDocName + ".xml";
        try
        {

            xmlDoc.Load(Page.MapPath(fileName));
        }
        catch (Exception exLoadxml)
        {
            return xmlDocName;
        }

        XmlNode root = xmlDoc.SelectSingleNode("media");//查找<media>
        XmlElement xe1 = xmlDoc.CreateElement("pp");//创建一个<pp>节点
        xe1.SetAttribute("url","http://s-sps:801/UploadedImages/"+FileUpload1.FileName.ToLower());//设置该节点url属性
        xe1.SetAttribute("name", FileUpload1.FileName.ToLower().Remove(FileUpload1.FileName.ToLower().LastIndexOf(".")));//设置该节点name属性
        root.AppendChild(xe1);//添加到<bookstore>节点中
        xmlDoc.PreserveWhitespace = true;
        xmlDoc.Save(Page.MapPath(fileName));
        return "上传成功";
    }
}

视频播放模块代码：

<table cellspacing= " 0 " cellpadding= " 4 " width= " 100% " border= " 0 ">
        <tbody>
            <tr>
                <td style= " vertical-align: top; width: 70% ">
                    < object id= " pl " style= " width: 100%; height: 519px " classid= " clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6 "
                        viewastext= "">
                        <param value= "" name= " URL " />
                        <param value= " 1 " name= " rate " />
                        <param value= " 0 " name= " balance " />
                        <param value= " 0 " name= " currentPosition " />
                        <param value= "" name= " defaultFrame " />
                        <param value= " 1 " name= " playCount " />
                        <param value= " -1 " name= " autoStart " />
                        <param value= " 0 " name= " currentMarker " />
                        <param value= " -1 " name= " invokeURLs " />
                        <param value= "" name= " baseURL " />
                        <param value= " 50 " name= " volume " />
                        <param value= " 0 " name= " mute " />
                        <param value= " full " name= " uiMode " />
                        <param value= " 0 " name= " stretchToFit " />
                        <param value= " 0 " name= " windowlessVideo " />
                        <param value= " -1 " name= " enabled " />
                        <param value= " -1 " name= " enableContextMenu " />
                        <param value= " 0 " name= " fullScreen " />
                        <param value= "" name= " SAMIStyle " />
                        <param value= "" name= " SAMILang " />
                        <param value= "" name= " SAMIFilename " />
                        <param value= "" name= " captioningID " />
                        <param value= " 0 " name= " enableErrorDialogs " />
                        <param value= " 6482 " name= " _cx " />
                        <param value= " 6350 " name= " _cy " />
                    </ object>
                </td>
                <td style= " vertical-align: top; width: 30% ">
                    播放列表<br />

                    <script language= " javascript " type= " text/javascript ">                     
                      //  JScript 文件                
                     function loadXML(xmlFile)                    
                      {                        
                         var xmlDoc;                        
                         if(window.ActiveXObject)                        
                         {                            
                             xmlDoc    = new ActiveXObject('Microsoft.XMLDOM');                            
                             xmlDoc.async    = false;                            
                             xmlDoc.load(xmlFile);                        
                         }                        
                         else if (document.implementation&&document.implementation.createDocument)
                         {                            
                             xmlDoc    = document.implementation.createDocument('', '', null);                            
                             xmlDoc.load(xmlFile);                        
                         }                        
                         else                        
                         {                            
                            return null;                        
                         }                                                
                     return xmlDoc;                    
                     }                   
                       // 一个检查xml文件的函数                    
                      checkXMLDocObj = function(xmlFile)                    
                       {                        
                          var xmlDoc    = loadXML(xmlFile);                        
                          if(xmlDoc==null)                        
                          {                            
                              alert('您的浏览器不支持xml文件读取,于是本页面禁止您的操作,推荐使用IE5.0以上可以解决此问题!');
                              window.location.href='/Index.aspx';                        
                          }                        
                          return xmlDoc;                    
                      }                
                      function doo()                 
                       {                     
                          // 定义一个读取xml文件的对象                     
                          var xmlDoc    = checkXMLDocObj('http://s-sps:801/huojian.xml');                     
                          var name = new Array();                     
                          var url = new Array();                     
                          var sum=xmlDoc.getElementsByTagName("pp").length;                     
                          for(var i=0; i<sum; i++)                     
                          {                          
                              url[i]=xmlDoc.getElementsByTagName('media/pp')[i].getAttribute('url');                          
                              name[i]=xmlDoc.getElementsByTagName('media/pp')[i].getAttribute('name');
                          }                     
                          var str = new Array();                     
                          for(var i=0; i<sum; i++)                     
                          {                        
                              str[i]="return play('"+url[i]+"')";                     
                          }                     
                          document.write('<table border="0" cellpadding="0" cellspacing="0">');                     
                          for(var i=0; i<sum; i++)                     
                          {                         
                              var x = i+1;                         
                              document.write('<tr><td style="background-image: url(playbj.GIF);background-position:center;background-repeat:no-repeat; width:20px;height:24px; text-align:center;vertical-align:middle;" >'+x+'</td><td>');                        
                              document.write('<input id=Button1 type=button value='+name[i].toString()+' onclick="'+str[i]+'" style="padding:2 0 0 2; border:0px;vertical-align:middle; background-color:#fff;text-align:left;">');                         
                              document.write('</td></tr>');                         
                              document.write('<tr><td style="height:1px;"><td><tr>');                     
                          }                     
                          document.write('</table>');                                 
                     }                 
                     function play(urlx)                        
                      {                                                     
                          document.all.item("pl").url=urlx;                           
                          document.all.item("pl").controls.play();                                                   
                     }                                    
                      doo();                  
                      </script>


                    
                </td>
            </tr>
            <tr>
                <td id= " _invisibleIfEmpty " style= " display: none " valign= " top " width= " 100% " colspan= " 2 "
                    name= " _invisibleIfEmpty ">
                </td>
            </tr>

            <script language= " javascript ">  if( typeof(MSOLayout_MakeInvisibleIfEmpty) ==  " function ")  {MSOLayout_MakeInvisibleIfEmpty();}</script>

        </tbody>
    </table>