/// <summary>
/// 根据相传入的数据，得到相应页面数据
/// </summary>
/// <param name="objHttpItem">参数类对象</param>
/// <returns>返回HttpResult类型</returns>
public HttpResult GetHtml(HttpItem objHttpItem)
{
//返回参数
var result = new HttpResult();
try
{
//准备参数
SetRequest(objHttpItem);
}
catch (Exception ex)
{
result = new HttpResult
{
Cookie = string.Empty,
Header = null,
Html = ex.Message,
StatusDescription = "配置参数时出错：" + ex.Message
};
return result;
}
try
{
using (_response = (HttpWebResponse)_request.GetResponse())
{
result.StatusCode = _response.StatusCode;
result.StatusDescription = _response.StatusDescription;
result.Header = _response.Headers;
if (_response.Cookies != null) result.CookieCollection = _response.Cookies;
if (_response.Headers["set-cookie"] != null) result.Cookie = _response.Headers["set-cookie"];
//GZIIP处理
MemoryStream stream =
GetMemoryStream(_response.ContentEncoding.Equals("gzip",
StringComparison.InvariantCultureIgnoreCase)
? // ReSharper disable AssignNullToNotNullAttribute
new GZipStream(_response.GetResponseStream(), CompressionMode.Decompress)
: // ReSharper restore AssignNullToNotNullAttribute
_response.GetResponseStream());
//获取Byte
byte[] rawResponse = stream.ToArray();
stream.Close();
//是否返回Byte类型数据
if (objHttpItem.ResultType == ResultType.Byte) result.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;
if (charter.Length > 2)
_encoding =
Encoding.GetEncoding(
charter.Trim()
.Replace("\"", "")
.Replace("'", "")
.Replace(";", "")
.Replace("iso-8859-1", "gbk"));
else
{
_encoding = string.IsNullOrEmpty(_response.CharacterSet)
? Encoding.UTF8
: Encoding.GetEncoding(_response.CharacterSet);
}
}
//得到返回的HTML
result.Html = _encoding.GetString(rawResponse);
}
}
catch (WebException ex)
{
//这里是在发生异常时返回的错误信息
_response = (HttpWebResponse)ex.Response;
result.Html = ex.Message;
if (_response != null)
{
result.StatusCode = _response.StatusCode;
result.StatusDescription = _response.StatusDescription;
}
}
catch (Exception ex)
{
result.Html = ex.Message;
}
if (objHttpItem.IsToLower) result.Html = result.Html.ToLower();
return result;
}
