在ASP.NET网站中实现带列表的视频播放
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>
