742 lines
27 KiB
C#
742 lines
27 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.IO.Compression;
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using System.Net;
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using System.Net.Security;
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using System.Security.Cryptography.X509Certificates;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace WaterCloud.Code
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{
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/// <summary>
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/// Http连接操作帮助类
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/// </summary>
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public class HttpHelper
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{
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#region 是否是网址
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public static bool IsUrl(string url)
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{
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url = url.ParseToString().ToLower();
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if (url.StartsWith("http://") || url.StartsWith("https://"))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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#endregion
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#region 模拟GET
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/// <summary>
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/// GET请求
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/// </summary>
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/// <param name="Url">The URL.</param>
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/// <param name="postDataStr">The post data string.</param>
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/// <returns>System.String.</returns>
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public static string HttpGet(string Url, int timeout = 10 * 1000)
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{
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
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request.Method = "GET";
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request.ContentType = "text/html;charset=UTF-8";
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request.Timeout = timeout;
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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Stream myResponseStream = response.GetResponseStream();
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StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
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string retString = myStreamReader.ReadToEnd();
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myStreamReader.Close();
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myResponseStream.Close();
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return retString;
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}
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#endregion
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#region 模拟POST
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/// <summary>
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/// POST请求
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/// </summary>
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/// <param name="posturl">The posturl.</param>
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/// <param name="postData">The post data.</param>
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/// <returns>System.String.</returns>
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public static string HttpPost(string posturl, string postData, string contentType = "application/x-www-form-urlencoded", int timeout = 10 * 1000)
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{
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Stream outstream = null;
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Stream instream = null;
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StreamReader sr = null;
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HttpWebResponse response = null;
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HttpWebRequest request = null;
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Encoding encoding = Encoding.GetEncoding("utf-8");
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byte[] data = encoding.GetBytes(postData);
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// 准备请求...
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try
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{
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// 设置参数
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request = WebRequest.Create(posturl) as HttpWebRequest;
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CookieContainer cookieContainer = new CookieContainer();
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request.CookieContainer = cookieContainer;
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request.AllowAutoRedirect = true;
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request.Method = "POST";
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request.ContentType = contentType;
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request.Timeout = timeout;
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request.ContentLength = data.Length;
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outstream = request.GetRequestStream();
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outstream.Write(data, 0, data.Length);
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outstream.Close();
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//发送请求并获取相应回应数据
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response = request.GetResponse() as HttpWebResponse;
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//直到request.GetResponse()程序才开始向目标网页发送Post请求
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instream = response.GetResponseStream();
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sr = new StreamReader(instream, encoding);
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//返回结果网页（html）代码
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string content = sr.ReadToEnd();
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string err = string.Empty;
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return content;
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}
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catch (Exception ex)
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{
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string err = ex.Message;
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return string.Empty;
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}
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}
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/// <summary>
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/// 模拟httpPost提交表单
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/// </summary>
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/// <param name="url">POS请求的网址</param>
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/// <param name="data">表单里的参数和值</param>
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/// <param name="encoder">页面编码</param>
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/// <returns></returns>
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public static string CreateAutoSubmitForm(string url, Dictionary<string, string> data, Encoding encoder)
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{
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StringBuilder html = new StringBuilder();
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html.AppendLine("<html>");
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html.AppendLine("<head>");
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html.AppendFormat("<meta http-equiv=\"Content-Type\" content=\"text/html; charset={0}\" />", encoder.BodyName);
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html.AppendLine("</head>");
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html.AppendLine("<body onload=\"OnLoadSubmit();\">");
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html.AppendFormat("<form id=\"pay_form\" action=\"{0}\" method=\"post\">", url);
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foreach (KeyValuePair<string, string> kvp in data)
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{
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html.AppendFormat("<input type=\"hidden\" name=\"{0}\" id=\"{0}\" value=\"{1}\" />", kvp.Key, kvp.Value);
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}
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html.AppendLine("</form>");
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html.AppendLine("<script type=\"text/javascript\">");
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html.AppendLine("<!--");
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html.AppendLine("function OnLoadSubmit()");
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html.AppendLine("{");
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html.AppendLine("document.getElementById(\"pay_form\").submit();");
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html.AppendLine("}");
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html.AppendLine("//-->");
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html.AppendLine("</script>");
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html.AppendLine("</body>");
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html.AppendLine("</html>");
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return html.ToString();
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}
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#endregion
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#region 预定义方法或者变更
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//默认的编码
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private Encoding encoding = Encoding.Default;
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//HttpWebRequest对象用来发起请求
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private HttpWebRequest request = null;
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//获取影响流的数据对象
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private HttpWebResponse response = null;
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/// <summary>
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/// 根据相传入的数据，得到相应页面数据
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/// </summary>
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/// <param name="strPostdata">传入的数据Post方式,get方式传NUll或者空字符串都可以</param>
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/// <returns>string类型的响应数据</returns>
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private HttpResult GetHttpRequestData(HttpItem objhttpitem)
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{
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//返回参数
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HttpResult result = new HttpResult();
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try
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{
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#region 得到请求的response
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using (response = (HttpWebResponse)request.GetResponse())
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{
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result.Header = response.Headers;
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if (response.Cookies != null)
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{
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result.CookieCollection = response.Cookies;
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}
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if (response.Headers["set-cookie"] != null)
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{
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result.Cookie = response.Headers["set-cookie"];
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}
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MemoryStream _stream = new MemoryStream();
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//GZIIP处理
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if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase))
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{
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//开始读取流并设置编码方式
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//new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240);
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//.net4.0以下写法
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_stream = GetMemoryStream(new GZipStream(response.GetResponseStream(), CompressionMode.Decompress));
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}
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else
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{
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//开始读取流并设置编码方式
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//response.GetResponseStream().CopyTo(_stream, 10240);
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//.net4.0以下写法
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_stream = GetMemoryStream(response.GetResponseStream());
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}
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//获取Byte
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byte[] RawResponse = _stream.ToArray();
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//是否返回Byte类型数据
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if (objhttpitem.ResultType == ResultTypes.Byte)
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{
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result.ResultByte = RawResponse;
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}
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//从这里开始我们要无视编码了
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if (encoding == null)
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{
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string temp = Encoding.Default.GetString(RawResponse, 0, RawResponse.Length);
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//<meta(.*?)charset([\s]?)=[^>](.*?)>
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Match meta = Regex.Match(temp, "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase | RegexOptions.Multiline);
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string charter = (meta.Groups.Count > 2) ? meta.Groups[2].Value : string.Empty;
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charter = charter.Replace("\"", string.Empty).Replace("'", string.Empty).Replace(";", string.Empty);
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if (charter.Length > 0)
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{
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charter = charter.ToLower().Replace("iso-8859-1", "gbk");
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encoding = Encoding.GetEncoding(charter);
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}
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else
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{
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if (response.CharacterSet.ToLower().Trim() == "iso-8859-1")
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{
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encoding = Encoding.GetEncoding("gbk");
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}
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else
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{
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if (string.IsNullOrEmpty(response.CharacterSet.Trim()))
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{
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encoding = Encoding.UTF8;
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}
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else
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{
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encoding = Encoding.GetEncoding(response.CharacterSet);
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}
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}
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}
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}
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//得到返回的HTML
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result.Html = encoding.GetString(RawResponse);
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//最后释放流
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_stream.Close();
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}
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#endregion
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}
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catch (WebException ex)
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{
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//这里是在发生异常时返回的错误信息
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result.Html = "String Error";
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response = (HttpWebResponse)ex.Response;
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}
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if (objhttpitem.IsToLower)
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{
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result.Html = result.Html.ToLower();
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}
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return result;
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}
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/// <summary>
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/// 4.0以下.net版本取数据使用
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/// </summary>
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/// <param name="streamResponse">流</param>
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private static MemoryStream GetMemoryStream(Stream streamResponse)
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{
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MemoryStream _stream = new MemoryStream();
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int Length = 256;
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Byte[] buffer = new Byte[Length];
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int bytesRead = streamResponse.Read(buffer, 0, Length);
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// write the required bytes
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while (bytesRead > 0)
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{
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_stream.Write(buffer, 0, bytesRead);
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bytesRead = streamResponse.Read(buffer, 0, Length);
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}
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return _stream;
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}
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/// <summary>
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/// 为请求准备参数
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/// </summary>
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///<param name="objhttpItem">参数列表</param>
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/// <param name="_Encoding">读取数据时的编码方式</param>
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private void SetRequest(HttpItem objhttpItem)
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{
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// 验证证书
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SetCer(objhttpItem);
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// 设置代理
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SetProxy(objhttpItem);
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//请求方式Get或者Post
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request.Method = objhttpItem.Method;
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request.Timeout = objhttpItem.Timeout;
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request.ReadWriteTimeout = objhttpItem.ReadWriteTimeout;
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//Accept
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request.Accept = objhttpItem.Accept;
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//ContentType返回类型
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request.ContentType = objhttpItem.ContentType;
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//UserAgent客户端的访问类型，包括浏览器版本和操作系统信息
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request.UserAgent = objhttpItem.UserAgent;
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// 编码
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SetEncoding(objhttpItem);
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//设置Cookie
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SetCookie(objhttpItem);
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//来源地址
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request.Referer = objhttpItem.Referer;
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//是否执行跳转功能
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request.AllowAutoRedirect = objhttpItem.Allowautoredirect;
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//设置Post数据
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SetPostData(objhttpItem);
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//设置最大连接
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if (objhttpItem.Connectionlimit > 0)
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{
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request.ServicePoint.ConnectionLimit = objhttpItem.Connectionlimit;
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}
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}
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/// <summary>
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/// 设置证书
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/// </summary>
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/// <param name="objhttpItem"></param>
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private void SetCer(HttpItem objhttpItem)
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{
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if (!string.IsNullOrEmpty(objhttpItem.CerPath))
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{
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//这一句一定要写在创建连接的前面。使用回调的方法进行证书验证。
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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//初始化对像，并设置请求的URL地址
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request = (HttpWebRequest)WebRequest.Create(GetUrl(objhttpItem.URL));
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//创建证书文件
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X509Certificate objx509 = new X509Certificate(objhttpItem.CerPath);
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//添加到请求里
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request.ClientCertificates.Add(objx509);
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}
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else
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{
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//初始化对像，并设置请求的URL地址
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request = (HttpWebRequest)WebRequest.Create(GetUrl(objhttpItem.URL));
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}
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}
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/// <summary>
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/// 设置编码
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/// </summary>
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/// <param name="objhttpItem">Http参数</param>
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private void SetEncoding(HttpItem objhttpItem)
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{
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if (string.IsNullOrEmpty(objhttpItem.Encoding) || objhttpItem.Encoding.ToLower().Trim() == "null")
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{
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//读取数据时的编码方式
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encoding = null;
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}
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else
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{
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//读取数据时的编码方式
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encoding = System.Text.Encoding.GetEncoding(objhttpItem.Encoding);
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}
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}
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/// <summary>
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/// 设置Cookie
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/// </summary>
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/// <param name="objhttpItem">Http参数</param>
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private void SetCookie(HttpItem objhttpItem)
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{
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if (!string.IsNullOrEmpty(objhttpItem.Cookie))
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{
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//Cookie
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request.Headers[HttpRequestHeader.Cookie] = objhttpItem.Cookie;
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}
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//设置Cookie
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if (objhttpItem.CookieCollection != null)
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(objhttpItem.CookieCollection);
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}
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}
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/// <summary>
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/// 设置Post数据
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/// </summary>
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/// <param name="objhttpItem">Http参数</param>
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private void SetPostData(HttpItem objhttpItem)
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{
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//验证在得到结果时是否有传入数据
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if (request.Method.Trim().ToLower().Contains("post"))
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{
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//写入Byte类型
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if (objhttpItem.PostDataType == PostDataType.Byte)
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{
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//验证在得到结果时是否有传入数据
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if (objhttpItem.PostdataByte != null && objhttpItem.PostdataByte.Length > 0)
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{
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request.ContentLength = objhttpItem.PostdataByte.Length;
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request.GetRequestStream().Write(objhttpItem.PostdataByte, 0, objhttpItem.PostdataByte.Length);
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}
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}//写入文件
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else if (objhttpItem.PostDataType == PostDataType.FilePath)
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{
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StreamReader r = new StreamReader(objhttpItem.Postdata, encoding);
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byte[] buffer = Encoding.Default.GetBytes(r.ReadToEnd());
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r.Close();
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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}
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else
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{
|
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//验证在得到结果时是否有传入数据
|
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if (!string.IsNullOrEmpty(objhttpItem.Postdata))
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{
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byte[] buffer = Encoding.Default.GetBytes(objhttpItem.Postdata);
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
|
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}
|
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}
|
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}
|
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}
|
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/// <summary>
|
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/// 设置代理
|
||
/// </summary>
|
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/// <param name="objhttpItem">参数对象</param>
|
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private void SetProxy(HttpItem objhttpItem)
|
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{
|
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if (string.IsNullOrEmpty(objhttpItem.ProxyUserName) && string.IsNullOrEmpty(objhttpItem.ProxyPwd) && string.IsNullOrEmpty(objhttpItem.ProxyIp))
|
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{
|
||
//不需要设置
|
||
}
|
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else
|
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{
|
||
//设置代理服务器
|
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WebProxy myProxy = new WebProxy(objhttpItem.ProxyIp, false);
|
||
//建议连接
|
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myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd);
|
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//给当前请求对象
|
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request.Proxy = myProxy;
|
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//设置安全凭证
|
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request.Credentials = CredentialCache.DefaultNetworkCredentials;
|
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}
|
||
}
|
||
/// <summary>
|
||
/// 回调验证证书问题
|
||
/// </summary>
|
||
/// <param name="sender">流对象</param>
|
||
/// <param name="certificate">证书</param>
|
||
/// <param name="chain">X509Chain</param>
|
||
/// <param name="errors">SslPolicyErrors</param>
|
||
/// <returns>bool</returns>
|
||
public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
|
||
{
|
||
// 总是接受
|
||
return true;
|
||
}
|
||
#endregion
|
||
|
||
#region 普通类型
|
||
/// <summary>
|
||
/// 传入一个正确或不正确的URl，返回正确的URL
|
||
/// </summary>
|
||
/// <param name="URL">url</param>
|
||
/// <returns>
|
||
/// </returns>
|
||
public static string GetUrl(string URL)
|
||
{
|
||
if (!(URL.Contains("http://") || URL.Contains("https://")))
|
||
{
|
||
URL = "http://" + URL;
|
||
}
|
||
return URL;
|
||
}
|
||
///<summary>
|
||
///采用https协议访问网络,根据传入的URl地址，得到响应的数据字符串。
|
||
///</summary>
|
||
///<param name="objhttpItem">参数列表</param>
|
||
///<returns>String类型的数据</returns>
|
||
public HttpResult GetHtml(HttpItem objhttpItem)
|
||
{
|
||
//准备参数
|
||
SetRequest(objhttpItem);
|
||
//调用专门读取数据的类
|
||
return GetHttpRequestData(objhttpItem);
|
||
}
|
||
#endregion
|
||
}
|
||
/// <summary>
|
||
/// Http请求参考类
|
||
/// </summary>
|
||
public class HttpItem
|
||
{
|
||
string _URL;
|
||
/// <summary>
|
||
/// 请求URL必须填写
|
||
/// </summary>
|
||
public string URL
|
||
{
|
||
get { return _URL; }
|
||
set { _URL = value; }
|
||
}
|
||
string _Method = "GET";
|
||
/// <summary>
|
||
/// 请求方式默认为GET方式
|
||
/// </summary>
|
||
public string Method
|
||
{
|
||
get { return _Method; }
|
||
set { _Method = value; }
|
||
}
|
||
int _Timeout = 100000;
|
||
/// <summary>
|
||
/// 默认请求超时时间
|
||
/// </summary>
|
||
public int Timeout
|
||
{
|
||
get { return _Timeout; }
|
||
set { _Timeout = value; }
|
||
}
|
||
int _ReadWriteTimeout = 30000;
|
||
/// <summary>
|
||
/// 默认写入Post数据超时间
|
||
/// </summary>
|
||
public int ReadWriteTimeout
|
||
{
|
||
get { return _ReadWriteTimeout; }
|
||
set { _ReadWriteTimeout = value; }
|
||
}
|
||
string _Accept = "text/html, application/xhtml+xml, */*";
|
||
/// <summary>
|
||
/// 请求标头值 默认为text/html, application/xhtml+xml, */*
|
||
/// </summary>
|
||
public string Accept
|
||
{
|
||
get { return _Accept; }
|
||
set { _Accept = value; }
|
||
}
|
||
string _ContentType = "text/html";
|
||
/// <summary>
|
||
/// 请求返回类型默认 text/html
|
||
/// </summary>
|
||
public string ContentType
|
||
{
|
||
get { return _ContentType; }
|
||
set { _ContentType = value; }
|
||
}
|
||
string _UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)";
|
||
/// <summary>
|
||
/// 客户端访问信息默认Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
|
||
/// </summary>
|
||
public string UserAgent
|
||
{
|
||
get { return _UserAgent; }
|
||
set { _UserAgent = value; }
|
||
}
|
||
string _Encoding = string.Empty;
|
||
/// <summary>
|
||
/// 返回数据编码默认为NUll,可以自动识别
|
||
/// </summary>
|
||
public string Encoding
|
||
{
|
||
get { return _Encoding; }
|
||
set { _Encoding = value; }
|
||
}
|
||
private PostDataType _PostDataType = PostDataType.String;
|
||
/// <summary>
|
||
/// Post的数据类型
|
||
/// </summary>
|
||
public PostDataType PostDataType
|
||
{
|
||
get { return _PostDataType; }
|
||
set { _PostDataType = value; }
|
||
}
|
||
string _Postdata;
|
||
/// <summary>
|
||
/// Post请求时要发送的字符串Post数据
|
||
/// </summary>
|
||
public string Postdata
|
||
{
|
||
get { return _Postdata; }
|
||
set { _Postdata = value; }
|
||
}
|
||
private byte[] _PostdataByte = null;
|
||
/// <summary>
|
||
/// Post请求时要发送的Byte类型的Post数据
|
||
/// </summary>
|
||
public byte[] PostdataByte
|
||
{
|
||
get { return _PostdataByte; }
|
||
set { _PostdataByte = value; }
|
||
}
|
||
CookieCollection cookiecollection = null;
|
||
/// <summary>
|
||
/// Cookie对象集合
|
||
/// </summary>
|
||
public CookieCollection CookieCollection
|
||
{
|
||
get { return cookiecollection; }
|
||
set { cookiecollection = value; }
|
||
}
|
||
string _Cookie = string.Empty;
|
||
/// <summary>
|
||
/// 请求时的Cookie
|
||
/// </summary>
|
||
public string Cookie
|
||
{
|
||
get { return _Cookie; }
|
||
set { _Cookie = value; }
|
||
}
|
||
string _Referer = string.Empty;
|
||
/// <summary>
|
||
/// 来源地址，上次访问地址
|
||
/// </summary>
|
||
public string Referer
|
||
{
|
||
get { return _Referer; }
|
||
set { _Referer = value; }
|
||
}
|
||
string _CerPath = string.Empty;
|
||
/// <summary>
|
||
/// 证书绝对路径
|
||
/// </summary>
|
||
public string CerPath
|
||
{
|
||
get { return _CerPath; }
|
||
set { _CerPath = value; }
|
||
}
|
||
private Boolean isToLower = true;
|
||
/// <summary>
|
||
/// 是否设置为全文小写
|
||
/// </summary>
|
||
public Boolean IsToLower
|
||
{
|
||
get { return isToLower; }
|
||
set { isToLower = value; }
|
||
}
|
||
private Boolean allowautoredirect = true;
|
||
/// <summary>
|
||
/// 支持跳转页面，查询结果将是跳转后的页面
|
||
/// </summary>
|
||
public Boolean Allowautoredirect
|
||
{
|
||
get { return allowautoredirect; }
|
||
set { allowautoredirect = value; }
|
||
}
|
||
private int connectionlimit = 1024;
|
||
/// <summary>
|
||
/// 最大连接数
|
||
/// </summary>
|
||
public int Connectionlimit
|
||
{
|
||
get { return connectionlimit; }
|
||
set { connectionlimit = value; }
|
||
}
|
||
private string proxyusername = string.Empty;
|
||
/// <summary>
|
||
/// 代理Proxy 服务器用户名
|
||
/// </summary>
|
||
public string ProxyUserName
|
||
{
|
||
get { return proxyusername; }
|
||
set { proxyusername = value; }
|
||
}
|
||
private string proxypwd = string.Empty;
|
||
/// <summary>
|
||
/// 代理 服务器密码
|
||
/// </summary>
|
||
public string ProxyPwd
|
||
{
|
||
get { return proxypwd; }
|
||
set { proxypwd = value; }
|
||
}
|
||
private string proxyip = string.Empty;
|
||
/// <summary>
|
||
/// 代理 服务IP
|
||
/// </summary>
|
||
public string ProxyIp
|
||
{
|
||
get { return proxyip; }
|
||
set { proxyip = value; }
|
||
}
|
||
private ResultTypes resulttype = ResultTypes.String;
|
||
/// <summary>
|
||
/// 设置返回类型String和Byte
|
||
/// </summary>
|
||
public ResultTypes ResultType
|
||
{
|
||
get { return resulttype; }
|
||
set { resulttype = value; }
|
||
}
|
||
|
||
}
|
||
/// <summary>
|
||
/// Http返回参数类
|
||
/// </summary>
|
||
public class HttpResult
|
||
{
|
||
string _Cookie = string.Empty;
|
||
/// <summary>
|
||
/// Http请求返回的Cookie
|
||
/// </summary>
|
||
public string Cookie
|
||
{
|
||
get { return _Cookie; }
|
||
set { _Cookie = value; }
|
||
}
|
||
CookieCollection cookiecollection = null;
|
||
/// <summary>
|
||
/// Cookie对象集合
|
||
/// </summary>
|
||
public CookieCollection CookieCollection
|
||
{
|
||
get { return cookiecollection; }
|
||
set { cookiecollection = value; }
|
||
}
|
||
private string html = string.Empty;
|
||
/// <summary>
|
||
/// 返回的String类型数据 只有ResultType.String时才返回数据，其它情况为空
|
||
/// </summary>
|
||
public string Html
|
||
{
|
||
get { return html; }
|
||
set { html = value; }
|
||
}
|
||
private byte[] resultbyte = null;
|
||
/// <summary>
|
||
/// 返回的Byte数组 只有ResultType.Byte时才返回数据，其它情况为空
|
||
/// </summary>
|
||
public byte[] ResultByte
|
||
{
|
||
|
||
get { return resultbyte; }
|
||
set { resultbyte = value; }
|
||
}
|
||
private WebHeaderCollection header = new WebHeaderCollection();
|
||
//header对象
|
||
public WebHeaderCollection Header
|
||
{
|
||
get { return header; }
|
||
set { header = value; }
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 返回类型
|
||
/// </summary>
|
||
public enum ResultTypes
|
||
{
|
||
String,//表示只返回字符串
|
||
Byte//表示返回字符串和字节流
|
||
}
|
||
|
||
/// <summary>
|
||
/// Post的数据格式默认为string
|
||
/// </summary>
|
||
public enum PostDataType
|
||
{
|
||
String,//字符串
|
||
Byte,//字符串和字节流
|
||
FilePath//表示传入的是文件
|
||
}
|
||
}
|