聲明：本人只在業余空閒時間寫寫《開心網輔助程序》，目的只是學習！
由於之前有寫過類似的程序，也寫過相關的文章介紹過（C#網站登錄學習筆記（一）：登錄簡單網站、C#網站登錄學習筆記（二）：訪問需登錄後才能訪問的頁面），這次寫起“開心網輔助程序”也可以算是得心應手了，直接從電腦中翻出塵封已久的HttpHelper（前面提到的兩篇文章就是居於這個操作類進行的），稍微分析了一下網頁結構（爭車位），就寫起程序來了！
在開始寫手記前，讓我們看看寫這樣的“外掛”程序需要准備什麼軟件？
1. 抓包工具：Http Analyzer V3。既然要實現的是Http模擬請求，抓包工具肯定少不了了
2. 網頁分析工具：Firefox 3.0 + Firebug 1.2.1。沒錯，可愛的火狐狸又來幫忙了
在這篇手記中，將簡單的介紹一下如何登錄開心網、獲取爭車位相關數據。
一、稍微修改了一下HttpHelper類的代碼：
Code
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;
namespace SNSHelper.Common
{
class HttpHelper
{
#region 私有變量
private CookieContainer cc;
private string contentType = "application/x-www-form-urlencoded";
private string accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-silverlight, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, application/x-silverlight-2-b1, */*";
private string userAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)";
private Encoding encoding = Encoding.GetEncoding("utf-8");
#endregion
#region 屬性
/// <summary>
/// Cookie容器
/// </summary>
public CookieContainer CookieContainer
{
get
{
return cc;
}
}
/// <summary>
/// 獲取網頁源碼時使用的編碼
/// </summary>
/// <value></value>
public Encoding Encoding
{
get
{
return encoding;
}
set
{
encoding = value;
}
}
#endregion
#region 構造函數
/// <summary>
/// Initializes a new instance of the <see cref="HttpHelper"/> class.
/// </summary>
public HttpHelper()
{
cc = new CookieContainer();
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpHelper"/> class.
/// </summary>
/// <param name="cc">The cc.</param>
public HttpHelper(CookieContainer cc)
{
this.cc = cc;
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpHelper"/> class.
/// </summary>
/// <param name="contentType">Type of the content.</param>
/// <param name="accept">The accept.</param>
/// <param name="userAgent">The user agent.</param>
public HttpHelper(string contentType, string accept, string userAgent)
{
this.contentType = contentType;
this.accept = accept;
this.userAgent = userAgent;
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpHelper"/> class.
/// </summary>
/// <param name="cc">The cc.</param>
/// <param name="contentType">Type of the content.</param>
/// <param name="accept">The accept.</param>
/// <param name="userAgent">The user agent.</param>
public HttpHelper(CookieContainer cc, string contentType, string accept, string userAgent)
{
this.cc = cc;
this.contentType = contentType;
this.accept = accept;
this.userAgent = userAgent;
}
#endregion
#region 公共方法
/// <summary>
/// 獲取指定頁面的HTML代碼
/// </summary>
/// <param name="url">指定頁面的路徑</param>
/// <param name="postData">回發的數據</param>
/// <param name="isPost">是否以post方式發送請求</param>
/// <param name="cookieCollection">Cookie集合</param>
/// <returns></returns>
public string GetHtml(string url, string postData, bool isPost, CookieContainer cookieContainer)
{
if (string.IsNullOrEmpty(postData))
{
return GetHtml(url, cookieContainer);
}
byte[] byteRequest = Encoding.Default.GetBytes(postData);
HttpWebRequest httpWebRequest;
httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
httpWebRequest.CookieContainer = cookieContainer;
httpWebRequest.ContentType = contentType;
httpWebRequest.Referer = url;
httpWebRequest.Accept = accept;
httpWebRequest.UserAgent = userAgent;
httpWebRequest.Method = isPost ? "POST" : "GET";
httpWebRequest.ContentLength = byteRequest.Length;
Stream stream = httpWebRequest.GetRequestStream();
stream.Write(byteRequest, 0, byteRequest.Length);
stream.Close();
HttpWebResponse httpWebResponse;
httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
Stream responseStream = httpWebResponse.GetResponseStream();
StreamReader streamReader = new StreamReader(responseStream, encoding);
string html = streamReader.ReadToEnd();
streamReader.Close();
responseStream.Close();
return html;
}
/// <summary>
/// 獲取指定頁面的HTML代碼
/// </summary>
/// <param name="url">指定頁面的路徑</param>
/// <param name="cookieCollection">Cookie集合</param>
/// <returns></returns>
public string GetHtml(string url, CookieContainer cookieContainer)
{
HttpWebRequest httpWebRequest;
httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
httpWebRequest.CookieContainer = cookieContainer;
httpWebRequest.ContentType = contentType;
httpWebRequest.Referer = url;
httpWebRequest.Accept = accept;
httpWebRequest.UserAgent = userAgent;
httpWebRequest.Method = "GET";
HttpWebResponse httpWebResponse;
httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
Stream responseStream = httpWebResponse.GetResponseStream();
StreamReader streamReader = new StreamReader(responseStream, encoding);
string html = streamReader.ReadToEnd();
streamReader.Close();
responseStream.Close();
return html;
}
/// <summary>
/// 獲取指定頁面的HTML代碼
/// </summary>
/// <param name="url">指定頁面的路徑</param>
/// <returns></returns>
public string GetHtml(string url)
{
return GetHtml(url, cc);
}
/// <summary>
/// 獲取指定頁面的HTML代碼
/// </summary>
/// <param name="url">指定頁面的路徑</param>
/// <param name="postData">回發的數據</param>
/// <param name="isPost">是否以post方式發送請求</param>
/// <returns></returns>
public string GetHtml(string url, string postData, bool isPost)
{
return GetHtml(url, postData, isPost, cc);
}
#endregion
}
}
