/// <summary>
/// 设置请求 体
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
static void SetBody(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
if (requestParameter.Method != HttpMethodEnum.Get)
{
string para;
if (requestParameter.Parameters != null && requestParameter.Parameters.Count > 0)
{
StringBuilder data = new StringBuilder(string.Empty);
foreach (KeyValuePair <string, object> keyValuePair in requestParameter.Parameters)
{
data.AppendFormat("{0}={1}&", keyValuePair.Key, HttpUtility.UrlEncode(keyValuePair.Value.ToString()));
}
para = data.Remove(data.Length - 1, 1).ToString();
}
else
{
para = requestParameter.PostData;
}
if (string.IsNullOrEmpty(para))
{
para = string.Empty;
}
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 代理
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
static void SetProxy(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
if (requestParameter.IsProxy && !string.IsNullOrEmpty(requestParameter.ProxyIp))
{
webRequest.Proxy = new WebProxy(requestParameter.ProxyIp, true);
webRequest.Credentials = CredentialCache.DefaultCredentials;
}
}
/// <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.Accept = requestParameter.Accept;
webRequest.ContentType = requestParameter.ContentType;
webRequest.UserAgent = requestParameter.UserAgent;
webRequest.Referer = requestParameter.Referer;
webRequest.KeepAlive = requestParameter.KeepAlive;
webRequest.Timeout = requestParameter.Timeout;
if (!string.IsNullOrEmpty(requestParameter.Origin))
{
// 自定义请求头
webRequest.Headers["Origin"] = requestParameter.Origin;
}
}
/// <summary>
/// 获取响应内容 | 或者操作响应流
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
static HttpResponseParameter GetResponse(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
HttpResponseParameter responseParameter = new HttpResponseParameter();
try
{
using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse())
{
responseParameter.Uri = webResponse.ResponseUri;
responseParameter.StatusCode = webResponse.StatusCode;
responseParameter.Cookie = new HttpCookieType
{
CookieCollection = webResponse.Cookies,
CookieString = webResponse.Headers[HttpResponseHeader.SetCookie]
};
responseParameter.ContentType = webResponse.ContentType;
responseParameter.ContentLength = webResponse.ContentLength;
if (requestParameter.ResponseEnum == HttpResponseEnum.String)
{
using (StreamReader reader = new StreamReader(webResponse.GetResponseStream(), requestParameter.Encoding))
{
responseParameter.Body = reader.ReadToEnd();
reader.Close();
}
}
else
{
if (requestParameter.StreamAction != null)
{
requestParameter.StreamAction(webResponse.GetResponseStream());
}
}
webResponse.Close();
}
}
catch (WebException ex)
{
using (StreamReader reader = new StreamReader(ex.Response.GetResponseStream(), requestParameter.Encoding))
{
responseParameter.Body = reader.ReadToEnd();
}
}
return(responseParameter);
}
public static HttpResponseParameter Execute(HttpRequestParameter requestParameter)
{
// 1.实例化 - 设置请求行
if (requestParameter.Method == HttpMethodEnum.Get)
{
string para;
if (requestParameter.Parameters != null && requestParameter.Parameters.Count > 0)
{
StringBuilder data = new StringBuilder(string.Empty);
foreach (KeyValuePair <string, object> keyValuePair in requestParameter.Parameters)
{
data.AppendFormat("&{0}={1}", keyValuePair.Key, HttpUtility.UrlEncode(keyValuePair.Value.ToString()));
}
para = data.Remove(0, 1).Insert(0, "?").ToString();
requestParameter.Url += para;
Debug.Write(requestParameter.Url);
}
}
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(new Uri(requestParameter.Url, UriKind.RelativeOrAbsolute));
webRequest.Method = requestParameter.Method.ToString().ToUpperInvariant();
webRequest.ProtocolVersion = requestParameter.HttpVersion;
if (Regex.IsMatch(requestParameter.Url, "^https://"))
{
// .ssl/https请求设置
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
ServicePointManager.ServerCertificateValidationCallback = CheckValidationResult;
}
// 2.设置请求头
SetHeader(webRequest, requestParameter);
// 3.设置请求Cookie
SetCookie(webRequest, requestParameter);
// 4.设置请求代理
SetProxy(webRequest, requestParameter);
// 5.设置请求参数[Post方式下]
SetBody(webRequest, requestParameter);
return(GetResponse(webRequest, requestParameter));
}
/// <summary>
/// 设置请求 cookie
/// </summary>
/// <param name="webRequest">HttpWebRequest对象</param>
/// <param name="requestParameter">请求参数对象</param>
static void SetCookie(HttpWebRequest webRequest, HttpRequestParameter requestParameter)
{
// 必须实例化cookie容器，以获取响应中的cookie，否则获取不到
//webRequest.CookieContainer = new CookieContainer();
if (mCookiesContainer == null)
{
mCookiesContainer = new CookieContainer();
}
webRequest.CookieContainer = mCookiesContainer; //启用cookie
if (requestParameter.Cookie != null)
{
if (!string.IsNullOrEmpty(requestParameter.Cookie.CookieString))
{
webRequest.Headers[HttpRequestHeader.Cookie] = requestParameter.Cookie.CookieString;
}
if (requestParameter.Cookie.CookieCollection != null &&
requestParameter.Cookie.CookieCollection.Count > 0)
{
mCookiesContainer.Add(requestParameter.Cookie.CookieCollection);
//mCookiesContainer = webRequest.CookieContainer;
}
}
}