/// <summary>
/// 异步Get方法
/// </summary>
/// <param name="requestUrl">请求链接</param>
/// <param name="cookie">请求Cookie</param>
/// <returns></returns>
public async Task <HttpResponseMessage> GetAsync(string requestUrl, string cookie = null)
{
DateTime requestStartTime = DateTime.Now; //请求开始时间
DateTime requestEndTime = requestStartTime; //请求结束时间
//创建请求对象
Uri uri = new Uri(requestUrl);
HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Get, new Uri(requestUrl));
//返回对象
HttpResponseMessage responseMessage = null;
try
{
//由于HttpClientHandler.UseCookies默认值是true，所以要设置为false。
if (this.HttpClientHandler.UseCookies)
{
this.HttpClientHandler.UseCookies = false;
}
//判断是否有Cookie
if (!string.IsNullOrWhiteSpace(cookie))
{
//清除Cookie
requestMessage.Headers.Remove("Cookie");
requestMessage.Headers.Add("Cookie", cookie);
}
//如果是https请求
if (uri.Scheme.Equals("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 |
SecurityProtocolType.Tls;
}
requestStartTime = DateTime.Now;
responseMessage = await this._httpClient.SendAsync(requestMessage);
requestEndTime = DateTime.Now;
}
catch (HttpRequestException e)
{
requestEndTime = DateTime.Now;
responseMessage = HttpResponseMessageExtension.CreateExceptionResponse(e, requestMessage);
}
finally
{
responseMessage.Headers.Add(HttpResponseMessageExtension.BeginTimeHeaderKey,
requestStartTime.ToString("yyyy-MM-dd HH:mm:ss.fff"));
responseMessage.Headers.Add(HttpResponseMessageExtension.EndTimeHeaderKey,
requestEndTime.ToString("yyyy-MM-dd HH:mm:ss.fff"));
//因为在发送请求后有可能会被改变，所以要重新赋值
responseMessage.RequestMessage.RequestUri = uri;
}
return(responseMessage);
}
/// <summary>
/// 异步Post方法
/// </summary>
/// <param name="requestUrl">请求链接</param>
/// <param name="postBody">请求Body内容</param>
/// <param name="cookie">请求Cookie</param>
/// <returns></returns>
public async Task <HttpResponseMessage> PostAsync(string requestUrl, HttpContent postBody = null, string cookie = null)
{
DateTime requestStartTime = DateTime.Now; //请求开始时间
DateTime requestEndTime = requestStartTime; //请求结束时间
//创建请求对象
Uri uri = new Uri(requestUrl);
HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, uri);
//返回对象
HttpResponseMessage responseMessage = null;
try
{
//由于HttpClientHandler.UseCookies默认值是true，所以要设置为false。
if (this.HttpClientHandler.UseCookies)
{
this.HttpClientHandler.UseCookies = false;
}
//判断是否有Cookie
if (!string.IsNullOrWhiteSpace(cookie))
{
//清除Cookie
requestMessage.Headers.Remove("Cookie");
requestMessage.Headers.Add("Cookie", cookie);
}
//判断是否有请求体
if (postBody != null)
{
//复制Body，在发送请求后会被释放
using (Stream stream = new MemoryStream())
{
await postBody.CopyToAsync(stream);
stream.Position = 0;
HttpContent postBodyCopy = new StreamContent(stream);
//复制请求头，排除已存在的Key
foreach (var bodyHeader in postBody.Headers.Where(s =>
postBodyCopy.Headers.Select(q => q.Key).Contains(s.Key) == false).ToList())
{
postBodyCopy.Headers.Add(bodyHeader.Key, bodyHeader.Value);
}
//赋值到请求对象
requestMessage.Content = postBodyCopy;
}
}
//如果是https请求
if (uri.Scheme.Equals("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 |
SecurityProtocolType.Tls;
}
requestStartTime = DateTime.Now;
responseMessage = await this._httpClient.SendAsync(requestMessage);
requestEndTime = DateTime.Now;
}
catch (HttpRequestException e)
{
requestEndTime = DateTime.Now;
responseMessage = HttpResponseMessageExtension.CreateExceptionResponse(e, requestMessage);
}
finally
{
responseMessage.Headers.Add(HttpResponseMessageExtension.BeginTimeHeaderKey,
requestStartTime.ToString("yyyy-MM-dd HH:mm:ss.fff"));
responseMessage.Headers.Add(HttpResponseMessageExtension.EndTimeHeaderKey,
requestEndTime.ToString("yyyy-MM-dd HH:mm:ss.fff"));
//因为postBody在发送请求后会被释放，所以要重新赋值
responseMessage.RequestMessage.Content = postBody;
//因为在发送请求后有可能会被改变，所以要重新赋值
responseMessage.RequestMessage.RequestUri = uri;
}
return(responseMessage);
}