/// <summary>
/// 通过HTTPGet方式获取远程页面数据.
/// </summary>
/// <param name="url">URL地址.</param>
/// <param name="referer">引用地址.</param>
/// <param name="errorMsg">输出错误消息.</param>
/// <param name="encode">编码格式.</param>
/// <returns>
/// NetResponse
/// </returns>
public NetResponse Get(string url, string referer, out string errorMsg, string encode = "utf-8")
{
int failedTimes = _tryTimes;
errorMsg = string.Empty;
HttpStatusCode statusCode = HttpStatusCode.OK;
string statusDes = "";
while (failedTimes-- > 0)
{
HttpWebRequest request = null;
try
{
if (failedTimes < _tryTimes - 1) // 推迟处理,第一次请求不延迟
{
Delay();
}
// 获取网络请求对象
request = GetWebRequest(url, referer);
request.Method = "GET";
if (_timeout > 0)
{
request.Timeout = _timeout;
}
using (WebResponse response = request.GetResponse())
{
return(GetNetResponse((HttpWebResponse)response, Encoding.GetEncoding(encode)));
}
}
catch (WebException ex)
{
errorMsg = ex.Message;
if (ex.Status == WebExceptionStatus.ProtocolError)
{
HttpWebResponse webResponse = (HttpWebResponse)ex.Response;
statusCode = webResponse.StatusCode;
statusDes = webResponse.StatusDescription;
}
else
{
statusCode = HttpStatusCode.BadGateway;
statusDes = ex.Message;
}
new ECFException("HTTP GET Error: " + ex.Message + "\nUrl: " + url);
}
finally
{
request = null;
}
}
NetResponse Result = new NetResponse()
{
Cookie = "",
Header = null,
Content = errorMsg,
StatusDescription = statusDes,
StatusCode = statusCode
};
return(Result);
}
/// <summary>
/// 获取网络响应.
/// </summary>
/// <param name="webResponse">Web响应.</param>
/// <param name="encoding">The encoding.</param>
/// <returns>
/// NetResponse
/// </returns>
private NetResponse GetNetResponse(HttpWebResponse webResponse, Encoding encoding)
{
//返回参数
NetResponse netResponse = new NetResponse();
try
{
netResponse.StatusCode = webResponse.StatusCode;
netResponse.StatusDescription = webResponse.StatusDescription;
netResponse.Header = webResponse.Headers;
// 设置Cookies
if (webResponse.Cookies != null)
{
netResponse.CookieCollection = webResponse.Cookies;
}
if (webResponse.Headers["set-cookie"] != null)
{
netResponse.Cookie = webResponse.Headers["set-cookie"];
}
// 内存数据流处理
MemoryStream _stream = new MemoryStream();
//GZIIP处理
if (webResponse.ContentEncoding != null && webResponse.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase))
{
//开始读取流并设置编码方式
//new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240);
//.net4.0以下写法
_stream = GetMemoryStream(new GZipStream(webResponse.GetResponseStream(), CompressionMode.Decompress));
}
else
{
//开始读取流并设置编码方式
//response.GetResponseStream().CopyTo(_stream, 10240);
//.net4.0以下写法
_stream = GetMemoryStream(webResponse.GetResponseStream());
}
//获取Byte
byte[] RawResponse = _stream.ToArray();
_stream.Close();
//是否返回Byte类型数据
netResponse.ResultByte = RawResponse;
//从这里开始我们要无视编码了
if (encoding == null)
{
Match meta = Regex.Match(Encoding.Default.GetString(RawResponse), "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase);
string charter = (meta.Groups.Count > 1) ? meta.Groups[2].Value.ToLower() : string.Empty;
charter = charter.Replace("\"", "").Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk");
if (charter.Length > 2)
{
encoding = Encoding.GetEncoding(charter.Trim());
}
else
{
if (string.IsNullOrEmpty(webResponse.CharacterSet))
{
encoding = Encoding.UTF8;
}
else
{
encoding = Encoding.GetEncoding(webResponse.CharacterSet);
}
}
}
//得到返回的HTML
netResponse.Content = encoding.GetString(RawResponse);
}
catch (WebException ex)
{
//这里是在发生异常时返回的错误信息
webResponse = (HttpWebResponse)ex.Response;
netResponse.Content = ex.Message;
if (webResponse != null)
{
netResponse.StatusCode = webResponse.StatusCode;
netResponse.StatusDescription = webResponse.StatusDescription;
}
}
catch (Exception ex)
{
netResponse.Content = ex.Message;
}
return(netResponse);
}
/// <summary>
/// POST方式发送数据到远程地址.
/// </summary>
/// <param name="url">远程地址.</param>
/// <param name="content">内容.</param>
/// <param name="referer">引用地址.</param>
/// <param name="contentType">发送内容.</param>
/// <param name="errorMsg">错误消息.</param>
/// <param name="encode">编码方式.</param>
/// <returns></returns>
public NetResponse Post(string url, byte[] content, string referer, out string errorMsg, string contentType = DefaultContentType, string encode = "UTF-8")
{
int failedTimes = _tryTimes;
errorMsg = string.Empty;
HttpStatusCode statusCode = HttpStatusCode.OK;
string statusDes = "";
while (failedTimes-- > 0)
{
HttpWebRequest request = null;
try
{
if (failedTimes < _tryTimes - 1) // 推迟处理,第一次请求不延迟
{
Delay();
}
// 获取网络请求对象
request = GetWebRequest(url, referer);
request.Method = "POST";
request.ContentType = contentType;
if (_timeout > 0)
{
request.Timeout = _timeout;
}
Encoding encoding = Encoding.GetEncoding(encode);
request.ContentLength = content.Length;
using (Stream steam = request.GetRequestStream())
{
steam.Write(content, 0, content.Length);
}
using (WebResponse response = request.GetResponse())
{
return(GetNetResponse((HttpWebResponse)response, encoding));
}
}
catch (WebException ex)
{
errorMsg = ex.Message;
if (ex.Status == WebExceptionStatus.ProtocolError)
{
HttpWebResponse webResponse = (HttpWebResponse)ex.Response;
statusCode = webResponse.StatusCode;
statusDes = webResponse.StatusDescription;
}
else
{
statusCode = HttpStatusCode.BadGateway;
statusDes = ex.Message;
}
new ECFException("HTTP POST Error: " + ex.Message + "\nUrl: " + url + "\nPost:" + content);
}
finally
{
request = null;
}
}
NetResponse Result = new NetResponse()
{
Cookie = "",
Header = null,
Content = errorMsg,
StatusDescription = statusDes,
StatusCode = statusCode
};
return(Result);
}
