/// <summary>
/// 设置Post数据
/// </summary>
/// <param name="param"></param>
private void SetPostData(HttpRequestParam param)
{
//验证在得到结果时是否有传入数据
if (request.Method.Trim().ToLower().Contains("post"))
{
//写入Byte类型
if (param.PostDataType == PostDataType.Byte)
{
//验证在得到结果时是否有传入数据
if (param.PostDataByte != null && param.PostDataByte.Length > 0)
{
request.ContentLength = param.PostDataByte.Length;
request.GetRequestStream().Write(param.PostDataByte, 0, param.PostDataByte.Length);
}
}//写入文件
else if (param.PostDataType == PostDataType.FilePath)
{
StreamReader r = new StreamReader(param.PostDate, encoding);
byte[] buffer = Encoding.Default.GetBytes(r.ReadToEnd());
r.Close();
request.ContentLength = buffer.Length;
request.GetRequestStream().Write(buffer, 0, buffer.Length);
}
else
{
//验证在得到结果时是否有传入数据
if (!string.IsNullOrEmpty(param.PostDate))
{
byte[] buffer = Encoding.Default.GetBytes(param.PostDate);
request.ContentLength = buffer.Length;
request.GetRequestStream().Write(buffer, 0, buffer.Length);
}
}
}
}
/// <summary>
/// 设置准备参数
/// </summary>
/// <param name="param"></param>
private void SetRequestParam(HttpRequestParam param)
{
//设置证书
SetCer(param.CerPath, param.Url);
//设置代理
SetProxy(param.ProxyUserName, param.ProxyPwd, param.ProxyIp);
//提交方式 (Post，Get等)
request.Method = param.Method;
//请求超时
request.Timeout = param.Timeout;
//读写超时
request.ReadWriteTimeout = param.ReadWriteTimeout;
request.Accept = param.Accept;
request.ContentType = param.ContentType;
request.UserAgent = param.UserAgent;
//编码
SetEncoding(param.Encoding);
//设置cookie
SetCookie(param.Cookie, param.Cookiecollection);
//来源地址
request.Referer = param.Referer;
//是否执行跳转功能
request.AllowAutoRedirect = param.AllowAutoRedirect;
//设置Post数据
SetPostData(param);
//最大连接数
if (param.ConnectionLimit > 0)
{
request.ServicePoint.ConnectionLimit = param.ConnectionLimit;
}
}
/// <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 HttpResultParam GetHttpRequestData(HttpRequestParam objhttpitem)
{
//返回参数
HttpResultParam result = new HttpResultParam();
try
{
#region 得到请求的response
using (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;
}
//从这里开始我们要无视编码了
if (encoding == null)
{
string temp = Encoding.Default.GetString(RawResponse, 0, RawResponse.Length);
//<meta(.*?)charset([\s]?)=[^>](.*?)>
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");
encoding = Encoding.GetEncoding(charter);
}
else
{
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
result.ResultHtml = encoding.GetString(RawResponse);
//最后释放流
_stream.Close();
}
#endregion
}
catch (WebException ex)
{
//这里是在发生异常时返回的错误信息
result.ResultHtml = "String Error";
response = (HttpWebResponse)ex.Response;
}
if (objhttpitem.IsToLower)
{
result.ResultHtml = result.ResultHtml.ToLower();
}
return(result);
}
/// <summary>
/// 多条件设定，获取数据
/// </summary>
/// <param name="param"></param>
/// <returns></returns>
public HttpResultParam GetHttpHtml(HttpRequestParam param)
{
//准备参数
SetRequestParam(param);
return(GetHttpRequestData(param));
}
