private static string doRequest(RequestDataBean requestDataBean)
{
if (!CheckTools.isUrl(requestDataBean.Url))
{
throw new ArgumentException("URL is illegal!");
}
Encoding encoding = Encoding.GetEncoding(requestDataBean.Charset);
HttpWebRequest httpWebRequest = CreateWebRequest(requestDataBean, encoding);
if (httpWebRequest == null)
{
return(null);
}
HttpWebResponse httpWebResponse = null;
try
{
httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;
return(GetResponseBody(httpWebResponse, encoding));
}
catch
{
return(null);
}
finally
{
if (httpWebRequest != null)
{
httpWebRequest.Abort();
}
if (httpWebResponse != null)
{
httpWebResponse.Close();
}
}
}
private static HttpWebRequest CreateWebRequest(RequestDataBean requestDataBean, Encoding encoding)
{
try
{
//提升系统外联的最大并发web访问数
ServicePointManager.DefaultConnectionLimit = 1024;
ServicePointManager.Expect100Continue = false;
Uri uri = new Uri(requestDataBean.Url);
StringBuilder sb = new StringBuilder();
string secheme = uri.Scheme;
string host = sb.Append(uri.Host).Append(uri.IsDefaultPort ? "" : (":" + uri.Port)).ToString();
sb.Clear();
string origin = sb.Append(secheme).Append("://").Append(host).ToString();
sb.Clear();
HttpWebRequest httpWebRequest = WebRequest.Create(uri) as HttpWebRequest;
httpWebRequest.Timeout = requestDataBean.Timeout;
httpWebRequest.Host = host;
string key, value;
foreach (KeyValuePair <string, string> kv in requestDataBean.GetHeaders())
{
key = kv.Key;
value = kv.Value;
if (CheckTools.isNull(key))
{
continue;
}
if (CheckTools.isNull(value))
{
continue;
}
if ("Accept".Equals(key))
{
httpWebRequest.Accept = value;
}
else if ("Connection".Equals(key))
{
if ("keep-alive".Equals(value))
{
httpWebRequest.KeepAlive = true;
}
}
else if ("Referer".Equals(key))
{
if (CheckTools.isUrl(value))
{
httpWebRequest.Referer = value;
}
}
else if ("User-Agent".Equals(key))
{
httpWebRequest.UserAgent = value;
}
else
{
httpWebRequest.Headers.Set(key, value);
}
}
string headerReferer = requestDataBean.GetHeader("Referer");
if (!CheckTools.isUrl(headerReferer))
{
headerReferer = sb.Append(origin).Append("/").ToString();
sb.Clear();
httpWebRequest.Referer = headerReferer;
}
string headerOrigin = requestDataBean.GetHeader("Origin");
if (!CheckTools.isUrl(headerOrigin))
{
httpWebRequest.Headers.Set("Origin", origin);
}
if (requestDataBean.Method == 1)
{
httpWebRequest.Method = "POST";
httpWebRequest.ContentType = "application/x-www-form-urlencoded";
}
else
{
httpWebRequest.Method = "GET";
}
CookieCollection cookies = requestDataBean.Cookies;
if (cookies != null && cookies.Count > 0)
{
if (httpWebRequest.CookieContainer == null)
{
httpWebRequest.CookieContainer = new CookieContainer();
}
foreach (Cookie cookie in cookies)
{
httpWebRequest.CookieContainer.Add(cookie);
}
}
if (CheckTools.isNull(requestDataBean.Charset))
{
requestDataBean.Charset = "utf-8";
}
string postData = null;
if (requestDataBean.Parameters != null)
{
foreach (KeyValuePair <string, string> kv in requestDataBean.Parameters)
{
key = kv.Key;
value = kv.Value;
if (CheckTools.isNull(key))
{
continue;
}
if (CheckTools.isNull(value))
{
continue;
}
sb.Append("&").Append(key).Append("=").Append(value);
}
if (sb.Length > 0)
{
sb.Remove(0, 1);
postData = sb.ToString();
sb.Clear();
}
}
if (postData != null && postData.Length > 0)
{
byte[] bytes = encoding.GetBytes(postData);
int length = bytes.Length;
httpWebRequest.ContentLength = length;
using (Stream requestStream = httpWebRequest.GetRequestStream())
{
try
{
requestStream.Write(bytes, 0, length);
requestStream.Flush();
}
finally
{
requestStream.Close();
}
}
}
return(httpWebRequest);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(null);
}
}