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HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest; request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; request.Headers.Add("Cookie", "JSESSIONID=F281A192223C6B2D4D1256BD40495194"); // cookie 要这么加 request.Referer = "http://192.168.222.203:8080/************/user_register.do?P=op_register&latest=102001"; request.Host = "192.168.222.203:8080"; //在写入流之前 把所有的设置写好 string data1 = "userId=7c509e59-9179-4fc3-b00a-a33007b1068e&agentId=2acbf00f-aa58-44f6-88c8-6d7027b78a7f&companyId=64436ad0-8ef4-430a-b6a4-08cac3b19c0a&versionTime=0"; //如果是传的json 就用转义符拼接起来 如下： //string data = "{\"ActualStartTime\":\"2020-04-08 12:12:04\",\"FinishDate\":\"2020-04-08 12:12:04\",\"FinishRemark\":\"完成情况说明\",\"CompleteRate\":100,\"PlanTaskExecuteGUID\":\"cdf1c2df-1741-41a4-b809-08d7bb58c553\",\"FilePath\":\"成果文件物理路径\"}";
//byte[] bytes = Encoding.UTF8.GetBytes(data);
byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(data1);
string url = "http://192.168.222.203:8080/************/operation.do"; HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest; request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; request.Headers.Add("Accept-Encoding", "gzip,deflate"); request.Headers.Add("cache-control", "no-cache"); request.Headers.Add("Cookie", "JSESSIONID=F281A192223C6B2D4D1256BD40495194"); request.Referer = "http://192.168.222.203:8080/************/user_register.do?P=op_register&latest=102001"; request.Host = "192.168.222.203:8080"; byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(data); request.ContentLength = buf.Length; Stream newStream = request.GetRequestStream(); newStream.Write(buf, 0, buf.Length); newStream.Close(); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("UTF-8")); string result = reader.ReadToEnd(); dynamic results = JsonConvert.DeserializeObject(result);
get中 url把参数a=1&b=2 这种匹配好 HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest; request.Method = "GET"; request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; CookieContainer cookie = new CookieContainer(); request.CookieContainer = cookie;// cookie 要这么加 request.Referer = "http://192.168.222.203:8080/************/user_register.do?P=op_register&latest=102001";
HttpWebResponse response = (HttpWebResponse)request.GetResponse(); string url = "http://192.168.222.203:8080/************/user_query.do?P=queryUsers&_dc=1537359997086"; url = url + "&" + "judgeClause=&judgeClauseTotalRecords=237&includeDeleteUsers=false&page=1&start=0&limit=50"; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "GET"; CookieContainer cc = new CookieContainer(); cc.Add(new Cookie("JSESSIONID", "F281A192223C6B2D4D1256BD40495194", "/DrcomManager", "192.168.222.203")); request.Referer = " http://192.168.222.203:8080/************/user_query.do?P=openlistdata&latest=101000"; request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; request.CookieContainer = cc; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8")); string retString = myStreamReader.ReadToEnd(); 细心看的话 两者的cookie的增加方式是有区别的 只是看你喜欢哪一种方式都可以 CookieContainer cookie = new CookieContainer(); request.CookieContainer = cookie; request.Headers.Add("Cookie", "JSESSIONID=F281A192223C6B2D4D1256BD40495194");
=======================================================2020年3月16日再次编辑======================================================= 使用HttpClient来进行http请求 class Program { static void Main(string[] args) { string _accessToken = ""; new Task(async () => { _accessToken = await GetAccessTokenAsync(); Console.WriteLine(_accessToken); }).Start(); Console.ReadKey(); } public static async Task<string> GetAccessTokenAsync() { string clientId = "********"; string clientSecret = "********"; string _accessToken = ""; HttpClient client = new HttpClient(); client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue( "Basic", Convert.ToBase64String(Encoding.ASCII.GetBytes(clientId + ":" + clientSecret)) ); //var parameters = new Dictionary<string, string>(); //parameters.Add("grant_type", "client_credentials"); //var content = new FormUrlEncodedContent(parameters); var content = new FormUrlEncodedContent(new Dictionary<string, string>() { { "grant_type", "client_credentials" } }); var response = await client.PostAsync("http://localhost:5888/Authorize", content); var responseValue = await response.Content.ReadAsStringAsync(); if (response.StatusCode != System.Net.HttpStatusCode.OK) { return string.Empty; } _accessToken = JObject.Parse(responseValue)["access_token"].Value<string>(); return _accessToken; } } 另外还有WebClient 还有一个 很简单 就不过多阐述了 WebClient wc = new WebClient(); ================================================== 当HttpWebRequest 出错时获取相应的Response信息 这一解决方案转载于：https://blog.csdn.net/m0_37655585/article/details/107312824 HttpWebResponse response;
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