日期:2009-12-23 浏览次数:21012 次
在播放视频时,直接查看页面源文件可看到视频文件地址,MediaPlayer控件播放器将在页面上加上如下初始化语句:
MediaPlayer控件初始化可查看到源文件地址
Sys.Application.add_init(function()
{
$create(Sys.UI.Silverlight.MediaPlayer,
{
"autoPlay":true,"mediaSource":"http://211.142.31.235/Nas1/VOD/CP0001/490Kbps/D/DI/DIA/DiaoZhongYuan1/DiaoZhongYuan1.wmv",
"scaleMode":2,"source":"UserControl/playerTheme/player.xaml","volume":1},
null, null,
$get("myUserMediaPlayer_player_parent"));
});
解决方案是先建立一个字符串加密解密服务
加密、解密工具类
1/**//// <summary>
2 /// 对字符串进行、加解密的工具类
3 /// </summary>
4 public class DESEncryptor
5 {
6 静态公共方法#region 静态公共方法
7 /**//// <summary>
8 /// 对字符串进行加密
9 /// </summary>
10 /// <param name="strSource">源字符串</param>
11 /// <returns>加密后的字符串</returns>
12 public static string ExecEncrypt(string strSource)
13 {
14 DESEncryptor desEncryptor = new DESEncryptor() ;
15 desEncryptor.InputString = strSource ;
16 desEncryptor.DesEncrypt() ;
17 return desEncryptor.OutString ;
18 }
19 /**//// <summary>
20 /// 对已经加密的字符串进行解密
21 /// </summary>
22 /// <param name="strSource">已经加密的字符串</param>
23 /// <returns>还原后的字符串</returns>
24 public static string ExecDeEncrypt(string strSource)
25 {
26 DESEncryptor desEncryptor = new DESEncryptor() ;
27 desEncryptor.InputString = strSource ;
28 desEncryptor.DesDecrypt() ;
29 return desEncryptor.OutString ;
30 }
31 #endregion
32
33 私有成员#region 私有成员
34 /**//// <summary>
35 /// 输入字符串
36 /// </summary>
37 private string inputString=null;
38 /**//// <summary>
39 /// 输出字符串
40 /// </summary>
41 private string outString=null;
42 /**//// <summary>
43 /// 输入文件路径
44 &nbs