Web application on the browser 網頁內容攔截程式

AlfaChiu

有朋友問我關於網頁攔截程式，這邊貼上函式用法給大家參考。

1. 
   
2. using System;
   
3. using System.Collections;
   
4. using System.Net;
   
5. using System.IO;
   
6. using System.Text;
   
7. namespace webpick
   
8. {
   
9. /// <summary>
   
10. /// com 公用函式
    
11. /// author: AlfaChiu
    
12. /// date: 2009/05/17
    
13. /// </summary>
    
14. public static class com
    
15. {
    
16.   /// <summary>
    
17.   /// 暫存陣列大小
    
18.   /// </summary>
    
19.   const int buffsize = 40960;
    
20.   /// <summary>
    
21.   /// 攔截網頁內容程式 - 分段網址
    
22.   /// </summary>
    
23.   /// <param name="addr_prifix">網址前導字串</param>
    
24.   /// <param name="addr_middle">網址中間字串</param>
    
25.   /// <param name="addr_subfix">網址末尾字串</param>
    
26.   /// <returns>網頁內容字串</returns>
    
27.   /// 範例：
    
28.   /// string address_pri = "http://wowbox.yatta.com.tw/item-";
    
29.   /// string address_mid = "39238";
    
30.   /// string address_sub = ".html";
    
31.   /// string page_cont = com.browsing(address_pri, address_mid, address_sub);
    
32.   public static string browsing(string addr_prifix, string addr_middle, string addr_subfix)
    
33.   {
    
34.    HttpWebRequest  myReq = (HttpWebRequest)WebRequest.Create(addr_prifix+addr_middle+addr_subfix);
    
35.    HttpWebResponse myRes = (HttpWebResponse)myReq.GetResponse();
    
36.    Stream myStr = myRes.GetResponseStream();
    
37.    StreamReader streamRead = new StreamReader( myStr );
    
38.    string myResponse = "";
    
39.    char[] readBuff = new char[com.buffsize];
    
40.    int count = streamRead.Read(readBuff, 0, com.buffsize);
    
41.    while (count > 0)
    
42.    {
    
43.     string outputData = new string(readBuff, 0, count);
    
44.     myResponse += outputData;
    
45.     count = streamRead.Read(readBuff, 0, com.buffsize);
    
46.    }
    
47.    return myResponse;
    
48.   }
    
49.   /// <summary>
    
50.   /// 攔截網頁內容程式 - 單一網址
    
51.   /// </summary>
    
52.   /// <param name="addr">網頁網址</param>
    
53.   /// <returns>網頁內容字串</returns>
    
54.   /// 範例：
    
55.   /// string address = "http://wowbox.yatta.com.tw/item-39238.html";
    
56.   /// string page_cont = com.browsing(address);
    
57.   public static string browsing(string address)
    
58.   {
    
59.    return browsing(address, "", "");
    
60.   }
    
61. }
    

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