/// <summary>
/// 使用Get方法获取字符串结果（没有加入Cookie）
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public static string HttpGet(string url, Encoding encoding = null)
{
#if NET35 || NET40 || NET45
WebClient wc = new WebClient();
wc.Proxy = _webproxy;
wc.Encoding = encoding ?? Encoding.UTF8;
return(wc.DownloadString(url));
#else
var handler = HttpClientHelper.GetHttpClientHandler(null, SenparcHttpClientWebProxy, DecompressionMethods.GZip);
HttpClient httpClient = SenparcDI.GetRequiredService <SenparcHttpClient>().Client;
return(httpClient.GetStringAsync(url).Result);
#endif
}
/// <summary>
/// .NET Core 版本的HttpWebRequest参数设置
/// </summary>
/// <returns></returns>
private static HttpClient HttpGet_Common_NetCore(string url, CookieContainer cookieContainer = null,
Encoding encoding = null, X509Certificate2 cer = null,
string refererUrl = null, bool useAjax = false, int timeOut = Config.TIME_OUT)
{
var handler = HttpClientHelper.GetHttpClientHandler(cookieContainer, RequestUtility.SenparcHttpClientWebProxy, DecompressionMethods.GZip);
if (cer != null)
{
handler.ClientCertificates.Add(cer);
}
HttpClient httpClient = SenparcDI.GetRequiredService <SenparcHttpClient>().Client;
HttpClientHeader(httpClient, refererUrl, useAjax, null, timeOut);
return(httpClient);
}
/// <summary>
/// 给.NET Core使用的HttpPost请求公共设置方法
/// </summary>
/// <param name="url"></param>
/// <param name="hc"></param>
/// <param name="cookieContainer"></param>
/// <param name="postStream"></param>
/// <param name="fileDictionary"></param>
/// <param name="refererUrl"></param>
/// <param name="encoding"></param>
/// <param name="cer"></param>
/// <param name="useAjax"></param>
/// <param name="headerAddition">header附加信息</param>
/// <param name="timeOut"></param>
/// <param name="checkValidationResult"></param>
/// <param name="contentType"></param>
/// <returns></returns>
public static HttpClient HttpPost_Common_NetCore(string url, out HttpContent hc, CookieContainer cookieContainer = null,
Stream postStream = null, Dictionary <string, string> fileDictionary = null, string refererUrl = null,
Encoding encoding = null, X509Certificate2 cer = null, bool useAjax = false, Dictionary <string, string> headerAddition = null,
int timeOut = Config.TIME_OUT, bool checkValidationResult = false, string contentType = HttpClientHelper.DEFAULT_CONTENT_TYPE)
{
HttpClientHandler handler = HttpClientHelper.GetHttpClientHandler(cookieContainer, SenparcHttpClientWebProxy, DecompressionMethods.GZip);
if (checkValidationResult)
{
handler.ServerCertificateCustomValidationCallback = new Func <HttpRequestMessage, X509Certificate2, X509Chain, SslPolicyErrors, bool>(CheckValidationResult);
}
if (cer != null)
{
handler.ClientCertificates.Add(cer);
}
var senparcHttpClient = SenparcDI.GetRequiredService <SenparcHttpClient>();
senparcHttpClient.SetCookie(new Uri(url), cookieContainer);//设置Cookie
HttpClient client = senparcHttpClient.Client;
HttpClientHeader(client, refererUrl, useAjax, headerAddition, timeOut);
#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)
{
contentType = "multipart/form-data";
//通过表单上传文件
string boundary = "----" + SystemTime.Now.Ticks.ToString("x");
var multipartFormDataContent = new MultipartFormDataContent(boundary);
hc = multipartFormDataContent;
foreach (var file in fileDictionary)
{
try
{
var fileName = file.Value;
//准备文件流
using (var fileStream = FileHelper.GetFileStream(fileName))
{
if (fileStream != null)
{
//存在文件
var memoryStream = new MemoryStream();
fileStream.CopyTo(memoryStream);
memoryStream.Seek(0, SeekOrigin.Begin);
//multipartFormDataContent.Add(new StreamContent(memoryStream), file.Key, Path.GetFileName(fileName)); //报流已关闭的异常
multipartFormDataContent.Add(CreateFileContent(memoryStream, file.Key, Path.GetFileName(fileName)), file.Key, Path.GetFileName(fileName));
fileStream.Dispose();
}
else
{
//不存在文件或只是注释
multipartFormDataContent.Add(new StringContent(file.Value), "\"" + file.Key + "\"");
}
}
}
catch (Exception ex)
{
throw ex;
}
}
hc.Headers.ContentType = MediaTypeHeaderValue.Parse(string.Format("multipart/form-data; boundary={0}", boundary));
}
else
{
if (postStream.Length > 0)
{
if (contentType == HttpClientHelper.DEFAULT_CONTENT_TYPE)
{
//如果ContentType是默认值，则设置成为二进制流
contentType = "application/octet-stream";
}
//contentType = "application/x-www-form-urlencoded";
}
hc = new StreamContent(postStream);
hc.Headers.ContentType = new MediaTypeHeaderValue(contentType);
//使用Url格式Form表单Post提交的时候才使用application/x-www-form-urlencoded
//去掉注释以测试Request.Body为空的情况
//hc.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
}
//HttpContentHeader(hc, timeOut);
#endregion
if (!string.IsNullOrEmpty(refererUrl))
{
client.DefaultRequestHeaders.Referrer = new Uri(refererUrl);
}
return(client);
}