/// <summary>
/// 根据相传入的数据，得到相应页面数据
/// </summary>
/// <param name="strPostdata">传入的数据Post方式,get方式传NUll或者空字符串都可以</param>
/// <returns>string类型的响应数据</returns>
private HttpResult GetHttpRequestData(HttpItem objhttpitem)
{
//返回参数
HttpResult result = new HttpResult();
try
{
#region 得到请求的response
result.CookieCollection = new CookieCollection();
response = (HttpWebResponse)request.GetResponse();
result.Header = response.Headers;
if (response.Cookies != null)
{
result.CookieCollection = response.Cookies;
}
if (response.Headers["set-cookie"] != null)
{
result.Cookie = response.Headers["set-cookie"];
}
MemoryStream _stream = new MemoryStream();
//GZIIP处理
if (response.ContentEncoding != null && response.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(response.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(response.GetResponseStream());
}
//获取Byte
byte[] RawResponse = _stream.ToArray();
//是否返回Byte类型数据
if (objhttpitem.ResultType == ResultType.Byte)
{
result.ResultByte = RawResponse;
return result;
}
//无视编码
if (encoding == null)
{
string temp = Encoding.Default.GetString(RawResponse, 0, RawResponse.Length);
//<meta(.*?)charset([\s]?)=[^>](.*?)>
//<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
Match meta = Regex.Match(temp, "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase | RegexOptions.Multiline);
string charter = (meta.Groups.Count > 2) ? meta.Groups[2].Value : string.Empty;
charter = charter.Replace("\"", string.Empty).Replace("'", string.Empty).Replace(";", string.Empty);
if (charter.Length > 0)
{
charter = charter.ToLower().Replace("iso-8859-1", "gbk").Split(' ')[0];
encoding = Encoding.GetEncoding(charter);
}
else
{
if (response.CharacterSet != null)
{
if (response.CharacterSet.ToLower().Trim() == "iso-8859-1")
{
encoding = Encoding.GetEncoding("gbk");
}
else
{
if (string.IsNullOrEmpty(response.CharacterSet.Trim()))
{
encoding = Encoding.UTF8;
}
else
{
encoding = Encoding.GetEncoding(response.CharacterSet);
}
}
}
}
}
//得到返回的HTML
try
{
result.Html = encoding.GetString(RawResponse);
_stream.Close();
response.Close();
}
catch
{
return null;
}
//最后释放流
#endregion
}
catch (WebException ex)
{
//这里是在发生异常时返回的错误信息
result.Html = "String Error";
response = (HttpWebResponse)ex.Response;
return result;
}
if (objhttpitem.IsToLower)
{
result.Html = result.Html;//.ToLower();
}
return result;
}
/// <summary>
/// 获取验证码
/// </summary>
/// <param name="objhttpItem">参数列表</param>
/// <returns>Img</returns>
public Image GetImg(HttpResult hr)
{
byte[] bt = Encoding.Default.GetBytes(hr.Html);
return byteArrayToImage(bt);
}