/// <summary>
/// 设置请求参数（只有Post请求方式才设置）
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
static void SetParameter(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
if (requestParameter.Parameters == null || requestParameter.Parameters.Count <= 0)
{
return;
}
if (requestParameter.IsPost)
{
StringBuilder data = new StringBuilder(string.Empty);
foreach (KeyValuePair <string, string> keyValuePair in requestParameter.Parameters)
{
data.AppendFormat("{0}={1}&", keyValuePair.Key, keyValuePair.Value);
}
string para = data.Remove(data.Length - 1, 1).ToString();
byte[] bytePosts = requestParameter.Encoding.GetBytes(para);
webRequest.ContentLength = bytePosts.Length;
using (Stream requestStream = webRequest.GetRequestStream())
{
requestStream.Write(bytePosts, 0, bytePosts.Length);
requestStream.Close();
}
}
}
/// <summary>
/// 设置请求头
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
static void SetHeader(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
webRequest.Method = requestParameter.IsPost ? "POST" : "GET";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Accept = "text/html, application/xhtml+xml, */*";
webRequest.KeepAlive = true;
webRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko/20100101 Firefox/22.0";
webRequest.AllowAutoRedirect = true;
webRequest.ProtocolVersion = HttpVersion.Version11;
}
/// <summary>
/// 设置请求Cookie
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
private static void SetCookie(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
// 必须实例化，否则响应中获取不到Cookie
webRequest.CookieContainer = new CookieContainer();
if (requestParameter.Cookie != null && !string.IsNullOrEmpty(requestParameter.Cookie.CookieString))
{
webRequest.Headers[HttpRequestHeader.Cookie] = requestParameter.Cookie.CookieString;
}
if (requestParameter.Cookie != null && requestParameter.Cookie.CookieCollection != null && requestParameter.Cookie.CookieCollection.Count > 0)
{
webRequest.CookieContainer.Add(requestParameter.Cookie.CookieCollection);
}
}
/// <summary>
/// 执行方法
/// </summary>
/// <param name="requestParameter">请求报文</param>
/// <returns>响应报文</returns>
public static HttpResponseParameter Excute(HttpRequestParameter requestParameter)
{
// 1.实例化
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(new Uri(requestParameter.Url, UriKind.RelativeOrAbsolute));
// 2.设置请求头
SetHeader(webRequest, requestParameter);
// 3.设置请求Cookie
SetCookie(webRequest, requestParameter);
// 4.ssl/https请求设置
if (Regex.IsMatch(requestParameter.Url, "^https://"))
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
ServicePointManager.ServerCertificateValidationCallback = CheckValidationResult;
}
// 5.设置请求参数[Post方式下]
SetParameter(webRequest, requestParameter);
// 6.返回响应报文
return(SetResponse(webRequest, requestParameter));
}
/// <summary>
/// 返回响应报文
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
/// <returns>响应对象</returns>
static HttpResponseParameter SetResponse(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
HttpResponseParameter responseParameter = new HttpResponseParameter();
using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse())
{
responseParameter.Uri = webResponse.ResponseUri;
responseParameter.StatusCode = webResponse.StatusCode;
responseParameter.Cookie = new HttpCookieType
{
CookieCollection = webResponse.Cookies,
CookieString = webResponse.Headers["Set-Cookie"]
};
using (StreamReader reader = new StreamReader(webResponse.GetResponseStream(), requestParameter.Encoding))
{
responseParameter.Body = reader.ReadToEnd();
}
}
return(responseParameter);
}