using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text; namespace Common
{
public class WebH
{
WebProxy proxy;
public string ContentType { get; set; } = "application/x-www-form-urlencoded";
public string Accept { get; set; } = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
public string UserAgent { get; set; } = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.152 Safari/537.36";
public CookieContainer Cookie { get; set; } = new CookieContainer();
public WebH() { }
public WebH(WebProxy proxy)
{
this.proxy = proxy;
}
public WebH(string url, string user, string pwd)
{
proxy = new WebProxy()
{
Address = new Uri(url),//"http://openproxy..com:8080"
Credentials = new NetworkCredential(user, pwd),
};
} public string GetHtml(string url)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
HttpWebResponse response = null;
try
{
request.Method = "GET";
request.Proxy = proxy;
request.CookieContainer = Cookie;
request.ContentType = ContentType;
//request.ServicePoint.ConnectionLimit = 300;
response = (HttpWebResponse)request.GetResponse();
Stream responseStream = response.GetResponseStream();
StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8);
return streamReader.ReadToEnd();
}
catch (Exception e)
{
throw e;
}
finally
{
request.Abort();
if (response != null)
response.Close();
}
} public string PostData(string url, string param, Action<WebHeaderCollection> action = null)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
try
{
byte[] bs = Encoding.ASCII.GetBytes(param);
request.Method = "POST";
request.Accept = Accept;
request.UserAgent = UserAgent;
request.Proxy = proxy;
request.ContentType = ContentType;
request.ContentLength = bs.Length;
request.CookieContainer = Cookie;
request.KeepAlive = true;
request.Referer = "https://www3.wipo.int/dasapplicant/en/pages/workbench/applicant.xhtml";
action?.Invoke(request.Headers);
using (Stream reqStream = request.GetRequestStream())
{
reqStream.Write(bs, , bs.Length);//写数据时开始访问
}
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
return new StreamReader(response.GetResponseStream(), Encoding.UTF8).ReadToEnd();
}
}
catch (Exception ex)
{
return ex.Message;
}
finally
{
request.Abort();
}
} public string PostDataAJAX(string url, string param)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
try
{
byte[] bs = Encoding.ASCII.GetBytes(param);
request.Method = "POST";
request.Accept = Accept;
request.UserAgent = UserAgent;
request.Proxy = proxy;
request.ContentType = ContentType;
request.ContentLength = bs.Length;
request.CookieContainer = Cookie;
request.KeepAlive = true;
//request.Connection = "keep-alive";
request.Headers.Add("X-Requested-With", "XMLHttpRequest");
using (Stream reqStream = request.GetRequestStream())
{
reqStream.Write(bs, , bs.Length);//写数据时开始访问
}
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
return new StreamReader(response.GetResponseStream(), Encoding.UTF8).ReadToEnd();
}
}
catch (Exception ex)
{
return ex.Message;
}
finally
{
//request.Abort();
}
}
}
}