使用C#基于.netframework4.6开发的并发请求工具
可以自定义Header，支持cookie。
支持GET/POST。
核心的HttpHelper代码：
public class HttpHelper
{
static public async Task Post(string url, Dictionary<string, string> headers, string body, DecompressionMethods decompress = DecompressionMethods.GZip, Action<string, int> callback = null, int index = 0)
{
try
{
var header = GetObj(headers);
var handler = new HttpClientHandler() { UseCookies = false, AutomaticDecompression = decompress };
HttpRequestMessage req = new HttpRequestMessage(HttpMethod.Post, url)
{
Content = new StringContent(body, Encoding.UTF8, header.ContentType)
};
SetHead(req.Headers, headers);
HttpClient client = new HttpClient(handler);
if (header.UserAgent != null)
client.DefaultRequestHeaders.Add("User-Agent", header.UserAgent);
if (header.Referer != null)
client.DefaultRequestHeaders.Add("Referer", header.Referer);
if (header.Origin != null)
client.DefaultRequestHeaders.Add("Origin", header.Origin);
if (header.AcceptLanguage != null)
client.DefaultRequestHeaders.Add("Accept-Language", header.AcceptLanguage);
if (header.Connection != null)
client.DefaultRequestHeaders.Connection.Add(header.Connection);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue(header.Accept));
var res = await client.SendAsync(req);
var str = await res.Content.ReadAsStringAsync();
if (callback != null)
callback(str, index);
}
catch (Exception ex)
{
if (callback != null)
callback(ex.Message, index);
}
}
static public async Task Get(string url, Dictionary<string, string> headers, DecompressionMethods decompress = DecompressionMethods.GZip, Action<string, int> callback = null, int index = 0)
{
try
{
var header = GetObj(headers);
var handler = new HttpClientHandler() { UseCookies = false, AutomaticDecompression = decompress };
HttpRequestMessage req = new HttpRequestMessage(HttpMethod.Get, url);
SetHead(req.Headers, headers);
HttpClient client = new HttpClient(handler);
client.DefaultRequestHeaders.Add("User-Agent", header.UserAgent);
var res = await client.SendAsync(req);
var str = await res.Content.ReadAsStringAsync();
if (callback != null)
callback(str, index);
}
catch (Exception ex)
{
if (callback != null)
callback(ex.Message, index);
}
}
private static void SetHead(HttpRequestHeaders headers, Dictionary<string, string> dics)
{
foreach (KeyValuePair<string, string> item in dics)
{
if (item.Key == "Content-Type") continue;
if (item.Key == "Referer") continue;
if (item.Key == "Content-Length") continue;
if (item.Key == "Accept") continue;
if (item.Key == "Connection") continue;
if (item.Key == "Host") continue;
headers.Add(item.Key, item.Value);
}
}
private static HeaderObj GetObj(Dictionary<string, string> headers)
{
HeaderObj obj = new HeaderObj();
if (headers.ContainsKey("Content-Type"))
{
obj.ContentType = headers["Content-Type"];
}
if (headers.ContainsKey("Referer"))
{
obj.Referer = headers["Referer"];
}
if (headers.ContainsKey("Connection"))
{
obj.Connection = headers["Connection"];
}
if (headers.ContainsKey("Accept"))
{
obj.Accept = headers["Accept"];
}
if (headers.ContainsKey("User-Agent"))
{
obj.UserAgent = headers["User-Agent"];
}
if (headers.ContainsKey("Origin"))
{
obj.Origin = headers["Origin"];
}
if (headers.ContainsKey("Accept-Language"))
{
obj.AcceptLanguage = headers["Accept-Language"];
}
return obj;
}
}
class HeaderObj
{
public string ContentType { get; set; } = "application/x-www-form-urlencoded";
public string UserAgent { get; set; } = "Mozilla/5.0 (Linux; Android 5.0; SM-G900P Build/LRX21T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Mobile Safari/537.36";
public string Referer { get; set; }
public string Connection { get; set; }
public string Origin { get; set; }
public string AcceptLanguage { get; set; }
public string Accept { get; set; }
}截图如下：
