/// <summary>
/// 使用Get方法获取字符串结果（加入Cookie）
/// </summary>
/// <param name="url"></param>
/// <param name="cookieContainer"></param>
/// <param name="encoding"></param>
/// <param name="cer">证书，如果不需要则保留null</param>
/// <param name="timeOut"></param>
/// <returns></returns>
public static string HttpGet(string url, CookieContainer cookieContainer = null,
Encoding encoding = null, X509Certificate cer = null, int timeOut = TIME_OUT)
{
var handler = new HttpClientHandler();
if (cookieContainer != null)
{
handler = new HttpClientHandler
{
CookieContainer = cookieContainer,
UseCookies = true,
};
}
if (cer != null)
{
handler.ClientCertificates.Add(cer);
}
var httpClient = new HttpClient(handler)
{
Timeout = DayTimeHelper.CalculatingDifferenceSecond(timeOut)
};
var t = httpClient.GetStringAsync(url);
t.Wait();
return(t.Result);
}
/// <summary>
/// 使用Post方法获取字符串结果
/// </summary>
/// <param name="url"></param>
/// <param name="cookieContainer"></param>
/// <param name="postStream"></param>
/// <param name="fileDictionary">需要上传的文件，Key：对应要上传的Name，Value：本地文件名</param>
/// <param name="encoding"></param>
/// <param name="cer">证书，如果不需要则保留null</param>
/// <param name="timeOut"></param>
/// <param name="checkValidationResult">验证服务器证书回调自动验证</param>
/// <returns></returns>
public static async Task <string> HttpPostAsync(string url, CookieContainer cookieContainer = null,
Stream postStream = null, Dictionary <string, string> fileDictionary = null, string refererUrl = null,
Encoding encoding = null, X509Certificate cer = null, int timeOut = TIME_OUT, bool checkValidationResult = false)
{
if (cookieContainer == null)
{
cookieContainer = new CookieContainer();
}
var handler = new HttpClientHandler {
CookieContainer = cookieContainer
};
if (cer != null)
{
handler.ClientCertificates.Add(cer);
}
var client = new HttpClient(handler)
{
Timeout = DayTimeHelper.CalculatingDifferenceSecond(timeOut)
};
HttpContent hc = new StreamContent(postStream);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/html"));
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xhtml+xml"));
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xml", 0.9));
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("image/webp"));
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("*/*", 0.8));
//hc.Headers.Add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
hc.Headers.Add("UserAgent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36");
hc.Headers.Add("Timeout", timeOut.ToString());
hc.Headers.Add("KeepAlive", "true");
#region 处理Form表单文件上传
var formUploadFile = fileDictionary != null && fileDictionary.Count > 0;//是否用Form上传文件
if (formUploadFile)
{
//通过表单上传文件
postStream = postStream ?? new MemoryStream();
var boundary = "----" + DateTime.Now.Ticks.ToString("x");
//byte[] boundarybytes = Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
var fileFormdataTemplate = "\r\n--" + boundary + "\r\nContent-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: application/octet-stream\r\n\r\n";
var dataFormdataTemplate = "\r\n--" + boundary +
"\r\nContent-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}";
foreach (var file in fileDictionary)
{
try
{
var fileName = file.Value;
//准备文件流
using (var fileStream = FileHelper.GetFileStream(fileName))
{
string formdata = null;
formdata = fileStream != null?
string.Format(fileFormdataTemplate, file.Key, /*fileName*/ Path.GetFileName(fileName)) :
string.Format(dataFormdataTemplate, file.Key, file.Value);
//统一处理
var formdataBytes = Encoding.UTF8.GetBytes(postStream.Length == 0 ?
formdata.Substring(2, formdata.Length - 2) :
formdata);//第一行不需要换行
postStream.Write(formdataBytes, 0, formdataBytes.Length);
//写入文件
if (fileStream == null)
{
continue;
}
var buffer = new byte[1024];
var bytesRead = 0;
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
postStream.Write(buffer, 0, bytesRead);
}
}
}
catch (Exception ex)
{
LogHelper.Log(ex);
//throw ex;
}
}
//结尾
var footer = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
postStream.Write(footer, 0, footer.Length);
hc.Headers.ContentType =
new MediaTypeHeaderValue(string.Format("multipart/form-data; boundary={0}", boundary));
}
else
{
hc.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
}
#endregion
var r = await client.PostAsync(url, hc);
return(await r.Content.ReadAsStringAsync());
}