名人名言:生活的理想,就是为了理想的生活。——张闻天
之前我写过篇关于C# HttpWebRequest 特技的文章 疏忽证书的办法请在篇文章里面查找感谢,以下不做疏忽证书的办法
无论是Get还是Post 带Cookie,编码题目解决 ,这里完全做到了疏忽编码的题目
比来把上方的办法收拾了一下,这个类相当于一个SqlHelper类一下,我把它叫做HttpHelper类,今后还会慢慢更新,欲望大师多我支撑,
给大师分享一下吧,不好的处所感激大师留言斧正,不久不多说了上代码吧!
/// <summary>
/// 类申明:HttpHelps类,用来实现Http接见,Post或者Get体式格式的,直接接见,带Cookie的,带证书的等体式格式
/// 编码日期:2011-08-20
/// 编 码 人: 苏飞
/// 接洽体式格式: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 预定义办法或者变革
//默认的编码
private Encoding encoding = Encoding.Default;
//HttpWebRequest对象用来创议恳求
private HttpWebRequest request = null;
//获取影响流的数据对象
private HttpWebResponse response = null;
//读取流的对象
private StreamReader reader = null;
//须要返回的数据对象
private string returnData = "String Error";
/// <summary>
/// 按拍照传入的数据,获得响应页面数据
/// </summary>
/// <param name="strPostdata">传入的数据Post体式格式,get体式格式传NUll或者空字符串都可以</param>
/// <returns>string类型的响应数据</returns>
private string GetHttpRequestData(string strPostdata)
{
try
{
//支撑跳转页面,查询成果将是跳转后的页面
request.AllowAutoRedirect = true;
//验证在获得成果时是否有传入数据
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 获得恳求的response
using (response = (HttpWebResponse)request.GetResponse())
{
//从这里开端我们要疏忽编码了
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
{
//开端读取流并设置编码体式格式
using (reader = new StreamReader(response.GetResponseStream(), encoding))
{
returnData = reader.ReadToEnd();
}
}
}
#endregion
}
catch (Exception)
{
//这里是在产生异常时返回的错误信息
returnData = "String Error";
}
return returnData.ToLower();
}
/// <summary>
/// 为恳求筹办参数
/// </summary>
/// <param name="_URL">恳求的URL地址</param>
/// <param name="_Method">恳求体式格式Get或者Post</param>
/// <param name="_Accept">Accept</param>
/// <param name="_ContentType">ContentType返回类型</param>
/// <param name="_UserAgent">UserAgent客户端的接见类型,包含浏览器版本和操纵体系信息</param>
/// <param name="_Encoding">读取数据时的编码体式格式</param>
private void SetRequest(string _URL, string _Method, string _Accept, string _ContentType, string _UserAgent, Encoding _Encoding)
{
//初始化对像,并设置恳求的URL地址
request = (HttpWebRequest)WebRequest.Create(FunctionServices.GetUrl(_URL));
//恳求体式格式Get或者Post
request.Method = _Method;
//Accept
request.Accept = _Accept;
//ContentType返回类型
request.ContentType = _ContentType;
//UserAgent客户端的接见类型,包含浏览器版本和操纵体系信息
request.UserAgent = _UserAgent;
//读取数据时的编码体式格式
encoding = _Encoding;
}
#endregion
#region 通俗类型
/// <summary>
/// 采取https和谈GET|POST体式格式接见收集,按照传入的URl地址,获得响应的数据字符串。
/// </summary>
/// <param name="_URL"></param>
/// <param name="_Method">恳求体式格式Get或者Post</param>
/// <param name="_Accept">Accept</param>
/// <param name="_ContentType">ContentType返回类型</param>
/// <param name="_UserAgent">UserAgent客户端的接见类型,包含浏览器版本和操纵体系信息</param>
/// <param name="_Encoding">读取数据时的编码体式格式</param>
/// <param name="_Postdata">只有_Method为Post体式格式时才须要传入值</param>
/// <returns>返回Html源代码</returns>
public string GetHttpRequestString(string _URL, string _Method, string _Accept, string _ContentType, string _UserAgent, Encoding _Encoding, string _Postdata)
{
//筹办参数
SetRequest(_URL, _Method, _Accept, _ContentType, _UserAgent, _Encoding);
//调用专门读取数据的类
return GetHttpRequestData(_Postdata);
}
///<summary>
///采取https和谈GET体式格式接见收集,按照传入的URl地址,获得响应的数据字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="objencoding">编码体式格式例如:System.Text.Encoding.UTF8;</param>
///<returns>String类型的数据</returns>
public string GetHttpRequestStringByNUll_Get(string URL, Encoding objencoding)
{
//筹办参数
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);
//调用专门读取数据的类
return GetHttpRequestData("");
}
///<summary>
///采取https和谈GET体式格式接见收集,按照传入的URl地址,获得响应的数据字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="objencoding">编码体式格式例如:System.Text.Encoding.UTF8;</param>
///<param name="stgrcookie">Cookie字符串</param>
///<returns>String类型的数据</returns>
public string GetHttpRequestStringByNUll_GetBycookie(string URL, Encoding objencoding, string stgrcookie)
{
//筹办参数
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;
//调用专门读取数据的类
return GetHttpRequestData("");
}
///<summary>
///采取https和谈GET体式格式接见收集,按照传入的URl地址,获得响应的数据字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="objencoding">编码体式格式例如:System.Text.Encoding.UTF8;</param>
///<returns>String类型的数据</returns>
public string GetHttpRequestStringByNUll_Get(string URL, Encoding objencoding, string _Accept, string useragent)
{
//筹办参数
SetRequest(URL, "GET", _Accept, "text/html", useragent, objencoding);
//调用专门读取数据的类
return GetHttpRequestData("");
}
///<summary>
///采取https和谈Post体式格式接见收集,按照传入的URl地址,获得响应的数据字符串。
///</summary>
///<param name="URL">url地址</param>
///<param name="strPostdata">Post发送的数据</param>
///<param name="objencoding">编码体式格式例如:System.Text.Encoding.UTF8;</param>
///<returns>String类型的数据</returns>
public string GetHttpRequestStringByNUll_Post(string URL, string strPostdata, Encoding objencoding)
{
//筹办参数
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);
//调用专门读取数据的类
return GetHttpRequestData(strPostdata);
}
#endregion
}
在很多景象下我们会应用间过程的webBrowser去实现一些网页的恳乞降抓去,这个时辰有项目组网页是取不到Cookie的,那怎么办呢?下面我供给一个办法,应当99%的都能取到,
//取当前webBrowser登录后的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,当登录后才干取
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();
}
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