模拟请求(模拟header gzip解压 泛型)

WebClient

HeaderData是自定义类对象，存储header信息

private static T GetDataCommonMethod<T>(string url, string host, HeaderData headerData) where T : class { //注意Host和请求基网址各个请求可能不同 var client = new WebClient(); var headerStr = $"Host: {host}" + "\n" + "User-Agent: ......" + "\n" + @"Accept: application/json, text/plain, */*" + "\n" + "Accept-Encoding: gzip, deflate" + "\n" + "Accept-Language: zh-cn" + "\n" + $"Cookie: m={headerData.m}; u={headerData.u}; wx={headerData.wx}; ......" + "\n"; var rawHeaders = headerStr.Split(new[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries).ToList(); var headerPairs = rawHeaders.Select(x => { var items = x.Split(new[] { ':' }, 2, StringSplitOptions.RemoveEmptyEntries); var key = items[0].Trim(); var value = items[1].Trim(); //ValueTuple是C# 7中的语法，.net framework框架在4.7以上自带 return new ValueTuple<string, string>(key, value); }).ToList(); headerPairs.ForEach(x => { client.Headers.Set(x.Item1, x.Item2); }); //先gzip解压再转string byte[] rawBytes = client.DownloadData(url); var stream = new MemoryStream(rawBytes); GZipStream g = new GZipStream(stream, CompressionMode.Decompress); //gzip最后四位是原始长度 var length = BitConverter.ToInt32(rawBytes, rawBytes.Length - 4); byte[] bytes = new byte[length]; g.Read(bytes, 0, bytes.Length); //编码是UTF8 string s0 = System.Text.Encoding.UTF8.GetString(bytes); T result = JsonConvert.DeserializeObject<T>(s0); return result; }

HttpClient

var baseAddress = new Uri(""); var yourText = ""; //UseCookies:处理程序是否使用 CookieContainer 属性来存储服务器Cookie 并在发送请求时使用这些 Cookie using (var handler = new HttpClientHandler { UseCookies = false }) using (var client = new HttpClient(handler) { BaseAddress = baseAddress }) { var formContent = new FormUrlEncodedContent(new[] { new KeyValuePair<string, string>("id", "1") }); //此处确定请求方式(POST) var message = new HttpRequestMessage(HttpMethod.Post, ""); //添加Cookie信息 message.Headers.Add("Cookie", yourText); message.Content = formContent; //使用SendAsync方法，把请求传进去HttpRequestMessage var result = await client.SendAsync(message); strContent = await result.Content.ReadAsStringAsync(); var retObj = JsonConvert.DeserializeObject<ResultDto>(strContent); }

注意事项

1.不能带

Connection: keep-alive

报错:InnerException = {"Keep-Alive 和 Close 不能使用此属性设置。\r\n参数名: value"}2."User-Agent","Accept-Language","application/json"这些，注意中间不要有空格报错:指定的值含有无效的 HTTP 标头字符。\r\n参数名: name

 

转载于:https://www.cnblogs.com/Lulus/p/7872252.html

相关资源：数据结构—成绩单生成器