读取http响应信息，并返回响应体
/// <summary>
/// 读取http响应信息，并返回响应体
/// </summary>
/// <param name="response">HttpWebResponse对象</param>
/// <returns></returns>
public static string ReaderFromHttp(HttpWebResponse response)
{
Stream stream = null;
StreamReader streamReader = null;
try
{
var contentEncoding = response.ContentEncoding; //压缩标志
var characterSet = response.CharacterSet; //字符集 stream = response.GetResponseStream();
if (contentEncoding == "gzip")
{
/*压缩数据，要进行处理*/
throw new NotImplementedException("gzip压缩数据处理还么实现");
}
else
{
streamReader = new StreamReader(stream, Encoding.GetEncoding(characterSet));
return streamReader.ReadToEnd();
} }
catch (Exception e)
{
return null;
}
finally
{
if (streamReader != null)
{
streamReader.Close();
streamReader = null;
}
if (stream != null)
{
stream.Close();
stream = null;
}
}
}
Http Get
#region Get Http
/// <summary>
/// GET方式的HTTP请求
/// </summary>
/// <param name="targetUri"></param>
/// <param name="timeout">超时时间</param>
/// <param name="cookie">随同HTTP请求发送的Cookie信息</param>
/// <returns></returns>
public static HttpWebRequest CreateGetHttpWebRequest(string targetUri, int timeout = , CookieCollection cookie = null)
{
HttpWebRequest request = WebRequest.Create(targetUri) as HttpWebRequest;
request.UserAgent = DefaultUserAgent;
request.Method = "GET";
if (timeout != )
request.Timeout = timeout;
if (cookie != null)
{
request.CookieContainer = new CookieContainer();
request.CookieContainer.Add(cookie);
}
return request;
}
/// <summary>
/// GET方式的HTTP请求,返回响应体
/// </summary>
/// <param name="targetUri"></param>
/// <param name="timeout">超时时间</param>
/// <param name="cookie">随同HTTP请求发送的Cookie信息</param>
/// <returns></returns>
public static string ReturnFromGetHttp(string targetUri, int timeout = , CookieCollection cookie = null)
{
HttpWebRequest request = null;
HttpWebResponse response = null;
try
{
request = CreateGetHttpWebRequest(targetUri, timeout, cookie);
response = request.GetResponse() as HttpWebResponse;
return ReaderFromHttp(response);
}
catch (Exception e)
{
return null;
}
finally
{
if (response != null)
{
response.Close();
response = null;
}
if (request != null)
{
request.Abort();
request = null;
}
}
}
#endregion
Http Post
#region Post Http
/// <summary>
/// POST方式的HTTP请求
/// </summary>
/// <param name="targetUri"></param>
/// <param name="content">请求文本信息</param>
/// <param name="characterSet">字符集(默认utf-8)</param>
/// <param name="timeout">超时时间</param>
/// <param name="cookie">随同HTTP请求发送的Cookie信息</param>
/// <returns></returns>
public static HttpWebRequest CreatePostHttpWebRequest(string targetUri, string content, string characterSet = null, int timeout = , CookieCollection cookie = null)
{
HttpWebRequest request = WebRequest.Create(targetUri) as HttpWebRequest;
request.UserAgent = DefaultUserAgent;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add("Accept-Encoding", "gzip, deflate");
if (timeout != )
request.Timeout = timeout;
if (cookie != null)
{
request.CookieContainer = new CookieContainer();
request.CookieContainer.Add(cookie);
}
using (var stream = request.GetRequestStream()) //写入请求数据流
{
characterSet = string.IsNullOrEmpty(characterSet) ? "utf-8" : characterSet;
var bytes = Encoding.GetEncoding(characterSet).GetBytes(content);
request.ContentLength = bytes.LongLength;
stream.Write(bytes, , bytes.Length);
}
return request;
}
/// <summary>
/// POST方式的HTTP请求,返回响应体
/// </summary>
/// <param name="targetUri"></param>
/// <param name="content">请求文本信息</param>
/// <param name="characterSet">字符集(默认utf-8)</param>
/// <param name="timeout">超时时间</param>
/// <param name="cookie">随同HTTP请求发送的Cookie信息</param>
/// <returns></returns>
public static string ReturnFromPostHttp(string targetUri, string content, string characterSet = null, int timeout = , CookieCollection cookie = null)
{
HttpWebRequest request = null;
HttpWebResponse response = null;
try
{
request = CreatePostHttpWebRequest(targetUri,content,characterSet, timeout, cookie);
response = request.GetResponse() as HttpWebResponse;
return ReaderFromHttp(response);
}
catch (Exception e)
{
return null;
}
finally
{
if (response != null)
{
response.Close();
response = null;
}
if (request != null)
{
request.Abort();
request = null;
}
}
}
#endregion
调用方式：
var reval = ReturnFromGetHttp("http://www.douyou100.com");
var reval1 = ReturnFromPostHttp("http://www.douyou100.com","请求文本");