using System;
using System.IO;
using System.Net;
using System.Text;
using System.Collections.Generic;
using System.Text.RegularExpressions; namespace scan
{
public class zzHttp
{
private const string sContentType = "application/x-www-form-urlencoded";
private const string sUserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; public static string Send(string data, string url)
{
return Send(Encoding.GetEncoding("UTF-8").GetBytes(data), url);
} public static string Send(byte[] data, string url)
{
Stream responseStream;
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
if (request == null)
{ throw new ApplicationException(string.Format("Invalid url string: {0}", url));
}
// request.UserAgent = sUserAgent;
request.ContentType = sContentType;
request.Method = "POST";
request.ContentLength = data.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(data, 0, data.Length);
requestStream.Close();
try
{
responseStream = request.GetResponse().GetResponseStream();
}
catch (Exception exception)
{ throw exception;
}
string str = string.Empty;
using (StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding("UTF-8")))
{
str = reader.ReadToEnd();
}
responseStream.Close();
return str;
} #region 同步通过POST方式发送数据
/// <summary>
/// 通过POST方式发送数据
/// </summary>
/// <param name="Url">url</param>
/// <param name="postDataStr">Post数据</param>
/// <param name="cookie">Cookie容器</param>
/// <returns></returns>
public string SendDataByPost(string Url, string postDataStr, ref CookieContainer cookie)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
if (cookie.Count == 0)
{
request.CookieContainer = new CookieContainer();
cookie = request.CookieContainer;
}
else
{
request.CookieContainer = cookie;
}
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postDataStr.Length;
//request.Timeout = 1000;
//request.ReadWriteTimeout = 3000;
Stream myRequestStream = request.GetRequestStream();
StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
myStreamWriter.Write(postDataStr);
myStreamWriter.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("gb2312"));
string retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
return retString;
} #endregion
#region 同步通过GET方式发送数据
/// <summary>
/// 通过GET方式发送数据
/// </summary>
/// <param name="Url">url</param>
/// <param name="postDataStr">GET数据</param>
/// <param name="cookie">Cookie容器</param>
/// <returns></returns>
public string SendDataByGET(string Url, string postDataStr, ref CookieContainer cookie)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);
if (cookie.Count == 0)
{
request.CookieContainer = new CookieContainer();
cookie = request.CookieContainer;
}
else
{
request.CookieContainer = cookie;
}
request.Method = "GET";
request.ContentType = "text/html;charset=UTF-8";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
string retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
return retString;
}
#endregion public string zzget(string Url,string getdata, string type)
{
try
{
System.Net.WebRequest wReq = System.Net.WebRequest.Create(Url + (getdata == "" ? "" : "?") + getdata);
// Get the response instance.
wReq.Method = "GET";
wReq.ContentType = "text/html;charset=UTF-8";
System.Net.WebResponse wResp = wReq.GetResponse();
System.IO.Stream respStream = wResp.GetResponseStream();
// Dim reader As StreamReader = New StreamReader(respStream)
using (System.IO.StreamReader reader = new System.IO.StreamReader(respStream, Encoding.GetEncoding(type)))
{
return reader.ReadToEnd();
}
}
catch (System.Exception ex)
{
//errorMsg = ex.Message;
}
return "";
} ///<summary>
///采用post发送请求
///</summary>
///<param name="URL">url地址</param>
///<param name="strPostdata">发送的数据</param>
///<returns></returns>
public string zzpost(string URL, IDictionary<string, Object> strPostdata, string strEncoding)
{ //IDictionary<string, Object> idc = new Dictionary<string, object>();
StringBuilder data = new StringBuilder();
foreach (KeyValuePair<string, Object> param in strPostdata)
{
data.Append(param.Key).Append("=");
data.Append(param.Value.ToString());
data.Append("&");
}
data.Remove(data.Length- 1,1);
Encoding encoding = Encoding.Default; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);
request.CookieContainer = new CookieContainer();//少了这句就不能登录
request.Method = "post";
request.Accept = "text/html, application/xhtml+xml, */*";
request.ContentType = "application/x-www-form-urlencoded";
byte[] buffer = encoding.GetBytes(data.ToString());
request.ContentLength = buffer.Length;
request.GetRequestStream().Write(buffer, 0, buffer.Length);
/*
request.ContentLength = data.Length;
Stream myRequestStream = request.GetRequestStream();
StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
myStreamWriter.Write(data);
myStreamWriter.Close();
*/
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
using (StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding(strEncoding)))
{
return reader.ReadToEnd();
} } /// <summary>
/// 清除文本中Html的标签
/// </summary>
/// <param name="Content"></param>
/// <returns></returns>
public static string ClearHtml(string Content)
{
Content = Zxj_ReplaceHtml("&#[^>]*;", "", Content);
Content = Zxj_ReplaceHtml("</?marquee[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?object[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?param[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?embed[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?table[^>]*>", "", Content);
Content = Zxj_ReplaceHtml(" ", "", Content);
Content = Zxj_ReplaceHtml("</?tr[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?p[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?a[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?img[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?tbody[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?li[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?span[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?div[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?td[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?script[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("(javascript|jscript|vbscript|vbs):", "", Content);
Content = Zxj_ReplaceHtml("on(mouse|exit|error|click|key)", "", Content);
Content = Zxj_ReplaceHtml("<\\?xml[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("<\\/?[a-z]+:[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?font[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?b[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?u[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?i[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?strong[^>]*>", "", Content);
Content = Zxj_ReplaceHtml("</?strong[^>]*>", "", Content); Content = Zxj_ReplaceHtml(" ", "", Content);
Regex r = new Regex(@"\s+");
Content = r.Replace(Content, ""); Content.Trim();
string clearHtml = Content;
return clearHtml;
} /// <summary>
/// 清除文本中的Html标签
/// </summary>
/// <param name="patrn">要替换的标签正则表达式</param>
/// <param name="strRep">替换为的内容</param>
/// <param name="content">要替换的内容</param>
/// <returns></returns>
private static string Zxj_ReplaceHtml(string patrn, string strRep, string content)
{
if (string.IsNullOrEmpty(content))
{
content = "";
}
Regex rgEx = new Regex(patrn, RegexOptions.IgnoreCase);
string strTxt = rgEx.Replace(content, strRep);
return strTxt;
} }
}
可以对一个地址发送POST请求可以获取COOKIE