名人名言:生活的理想,就是爲了理想的生活。——張聞天
之前我寫過篇關於C# HttpWebRequest 特技的文章 疏忽證書的辦法請在篇文章裏面查找感謝,以下不做疏忽證書的辦法
無論是Get還是Post 帶Cookie,編碼題目解決 ,這裏完全做到了疏忽編碼的題目
比來把上方的辦法收拾了一下,這個類相當於一個SqlHelper類一下,我把它叫做HttpHelper類,今後還會慢慢更新,慾望大師多我支撐,
給大師分享一下吧,不好的處所感激大師留言斧正,不久不多說了上代碼吧!
/// <summary>
/// 類申明:HttpHelps類,用來實現Http接見,Post或者Get體式格式的,直接接見,帶Cookie的,帶證書的等體式格式
/// 編碼日期:2011-08-20
/// 編 碼 人: 蘇飛
/// 接洽體式格式:361983679 Email:sufei.1013@163.com Blogs:http://sufei.cnblogs.com
/// </summary>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
using System.Text.RegularExpressions;
using System.IO.Compression;
using _7c.BaseFunction;
public class HttpHelps
{
#region 預定義辦法或者變革
//默認的編碼
private Encoding encoding = Encoding.Default;
//HttpWebRequest對象用來創議懇求
private HttpWebRequest request = null;
//獲取影響流的數據對象
private HttpWebResponse response = null;
//讀取流的對象
private StreamReader reader = null;
//須要返回的數據對象
private string returnData = "String Error";
/// <summary>
/// 按拍照傳入的數據,獲得響應頁面數據
/// </summary>
/// <param name="strPostdata">傳入的數據Post體式格式,get體式格式傳NUll或者空字符串都可以</param>
/// <returns>string類型的響應數據</returns>
private string GetHttpRequestData(string strPostdata)
{
try
{
//支撐跳轉頁面,查詢成果將是跳轉後的頁面
request.AllowAutoRedirect = true;
//驗證在獲得成果時是否有傳入數據
if (!string.IsNullOrEmpty(strPostdata) && request.Method.Trim().ToLower().Contains("post"))
{
byte[] buffer = encoding.GetBytes(strPostdata);
request.ContentLength = buffer.Length;
request.GetRequestStream().Write(buffer, 0, buffer.Length);
}
#region 獲得懇求的response
using (response = (HttpWebResponse)request.GetResponse())
{
//從這裏開端我們要疏忽編碼了
if (encoding == null)
{
MemoryStream _stream = new MemoryStream();
response.GetResponseStream().CopyTo(_stream, 10240);
byte[] RawResponse = _stream.ToArray();
string temp = Encoding.Default.GetString(RawResponse, 0, RawResponse.Length);
//<meta(.*?)charset([\s]?)=[^>](.*?)>
Match meta = Regex.Match(temp, "<meta([^<]*)charset=([^<]*)[\"""]", RegexOptions.IgnoreCase | RegexOptions.Multiline);
string charter = (meta.Groups.Count > 2) ? meta.Groups[2].Value : string.Empty;
charter = charter.Replace("\"", string.Empty).Replace("""", string.Empty).Replace(";", string.Empty);
if (charter.Length > 0)
{
encoding = Encoding.GetEncoding(charter);
}
else
{
if (string.IsNullOrEmpty(response.CharacterSet))
{
encoding = Encoding.UTF8;
}
else
{
encoding = Encoding.GetEncoding(response.CharacterSet);
}
}
returnData = encoding.GetString(RawResponse);
}
else
{
//開端讀取流並設置編碼體式格式
using (reader = new StreamReader(response.GetResponseStream(), encoding))
{
returnData = reader.ReadToEnd();
}
}
}
#endregion
}
catch (Exception)
{
//這裏是在產生異常時返回的錯誤信息
returnData = "String Error";
}
return returnData.ToLower();
}
/// <summary>
/// 爲懇求籌辦參數
/// </summary>
/// <param name="_URL">懇求的URL地址</param>
/// <param name="_Method">懇求體式格式Get或者Post</param>
/// <param name="_Accept">Accept</param>
/// <param name="_ContentType">ContentType返回類型</param>
/// <param name="_UserAgent">UserAgent客戶端的接見類型,包含瀏覽器版本和操縱體系信息</param>
/// <param name="_Encoding">讀取數據時的編碼體式格式</param>
private void SetRequest(string _URL, string _Method, string _Accept, string _ContentType, string _UserAgent, Encoding _Encoding)
{
//初始化對像,並設置懇求的URL地址
request = (HttpWebRequest)WebRequest.Create(FunctionServices.GetUrl(_URL));
//懇求體式格式Get或者Post
request.Method = _Method;
//Accept
request.Accept = _Accept;
//ContentType返回類型
request.ContentType = _ContentType;
//UserAgent客戶端的接見類型,包含瀏覽器版本和操縱體系信息
request.UserAgent = _UserAgent;
//讀取數據時的編碼體式格式
encoding = _Encoding;
}
#endregion
#region 通俗類型
/// <summary>
/// 採取https和談GET|POST體式格式接見收集,按照傳入的URl地址,獲得響應的數據字符串。
/// </summary>
/// <param name="_URL"></param>
/// <param name="_Method">懇求體式格式Get或者Post</param>
/// <param name="_Accept">Accept</param>
/// <param name="_ContentType">ContentType返回類型</param>
/// <param name="_UserAgent">UserAgent客戶端的接見類型,包含瀏覽器版本和操縱體系信息</param>
/// <param name="_Encoding">讀取數據時的編碼體式格式</param>
/// <param name="_Postdata">只有_Method爲Post體式格式時才須要傳入值</param>
/// <returns>返回Html源代碼</returns>
public string GetHttpRequestString(string _URL, string _Method, string _Accept, string _ContentType, string _UserAgent, Encoding _Encoding, string _Postdata)
{
//籌辦參數
SetRequest(_URL, _Method, _Accept, _ContentType, _UserAgent, _Encoding);
//調用專門讀取數據的類
return GetHttpRequestData(_Postdata);
}
///<summary>
///採取https和談GET體式格式接見收集,按照傳入的URl地址,獲得響應的數據字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="objencoding">編碼體式格式例如:System.Text.Encoding.UTF8;</param>
///<returns>String類型的數據</returns>
public string GetHttpRequestStringByNUll_Get(string URL, Encoding objencoding)
{
//籌辦參數
SetRequest(URL, "GET", "text/html, application/xhtml+xml, */*", "text/html", "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)", objencoding);
//調用專門讀取數據的類
return GetHttpRequestData("");
}
///<summary>
///採取https和談GET體式格式接見收集,按照傳入的URl地址,獲得響應的數據字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="objencoding">編碼體式格式例如:System.Text.Encoding.UTF8;</param>
///<param name="stgrcookie">Cookie字符串</param>
///<returns>String類型的數據</returns>
public string GetHttpRequestStringByNUll_GetBycookie(string URL, Encoding objencoding, string stgrcookie)
{
//籌辦參數
SetRequest(URL, "GET", "text/html, application/xhtml+xml, */*", "text/html", "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)", objencoding);
request.Headers[HttpRequestHeader.Cookie] = stgrcookie;
//調用專門讀取數據的類
return GetHttpRequestData("");
}
///<summary>
///採取https和談GET體式格式接見收集,按照傳入的URl地址,獲得響應的數據字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="objencoding">編碼體式格式例如:System.Text.Encoding.UTF8;</param>
///<returns>String類型的數據</returns>
public string GetHttpRequestStringByNUll_Get(string URL, Encoding objencoding, string _Accept, string useragent)
{
//籌辦參數
SetRequest(URL, "GET", _Accept, "text/html", useragent, objencoding);
//調用專門讀取數據的類
return GetHttpRequestData("");
}
///<summary>
///採取https和談Post體式格式接見收集,按照傳入的URl地址,獲得響應的數據字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="strPostdata">Post發送的數據</param>
///<param name="objencoding">編碼體式格式例如:System.Text.Encoding.UTF8;</param>
///<returns>String類型的數據</returns>
public string GetHttpRequestStringByNUll_Post(string URL, string strPostdata, Encoding objencoding)
{
//籌辦參數
SetRequest(URL, "post", "text/html, application/xhtml+xml, */*", "text/html", "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)", objencoding);
//調用專門讀取數據的類
return GetHttpRequestData(strPostdata);
}
#endregion
}
在很多景象下我們會應用間過程的webBrowser去實現一些網頁的懇乞降抓去,這個時辰有項目組網頁是取不到Cookie的,那怎麼辦呢?下面我供給一個辦法,應當99%的都能取到,
//取當前webBrowser登錄後的Cookie值
[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref int pcchCookieData, int dwFlags, object lpReserved);
//取出Cookie,當登錄後才幹取
private static string GetCookieString(string url)
{
// Determine the size of the cookie
int datasize = 256;
StringBuilder cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0 x00002000, null))
{
if (datasize < 0)
return null;
// Allocate stringbuilder large enough to hold the cookie
cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0 x00002000, null))
return null;
}
return cookieData.ToString();
}
迎接大師轉載,如有轉載請註明文章來自: http://sufei.cnblogs.com/
一個很好的HttpHelper類 C# ASP.NET
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