C# http get与post请求方法

public class HttpTools { public static string GetRequest(string url) { HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); request.Method = "get"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); using (StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8)) { string result = sr.ReadToEnd(); return result; } } /// <summary> /// HttpPostByJson /// </summary> /// <param name="url"></param> /// <param name="param"></param> /// <returns></returns> public static string HttpPostByJson(string url, string param, WebHeaderCollection headers) { string strURL = url; System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)WebRequest.Create(strURL); //添加信息头(header) request.Headers = headers; request.Method = "POST"; request.ContentType = "application/json;charset=UTF-8"; string paraUrlCoded = param; byte[] payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded); request.ContentLength = payload.Length; Stream writer = request.GetRequestStream(); writer.Write(payload, 0, payload.Length); writer.Close(); System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse(); System.IO.Stream s = response.GetResponseStream(); string StrDate = string.Empty; StringBuilder sb = new StringBuilder(); StreamReader Reader = new StreamReader(s, Encoding.UTF8); while ((StrDate = Reader.ReadLine()) != null) { sb.Append(StrDate); } return sb.ToString(); } /// <summary> /// PostRequest /// </summary> /// <param name="url"></param> /// <param name="paramList"></param> /// <returns></returns> public static string PostRequest(string url, Dictionary<object, object> paramList) { HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); StringBuilder sb = new StringBuilder(); foreach (var item in paramList) { sb.Append(item.Key + "=" + item.Value + "&"); } //将参数拼为:"name=test&pwd=123" 这种字符串格式 然后将字符串转为byte数组 最后将byte数组写入请求流中 string paramData = sb.ToString().Trim('&'); byte[] data = System.Text.Encoding.UTF8.GetBytes(paramData); //设置post方式 request.Method = "post"; //这句不能少 不难post请求 得不到对应的响应结果 request.ContentType = "application/x-www-form-urlencoded"; //设置请求参数的长度 request.ContentLength = data.Length; Stream stream = request.GetRequestStream(); stream.Write(data, 0, data.Length); stream.Close(); /** * *****************注意事项******************** * * 不管是get还是post请求最后得到的响应流不能直接stream * 不难得不到响应结果 * * * 直接使用Stream 不能获取响应的结果值 * * 要使用StreamReader才能获取响应的结果值 * * Stream stream = response.GetResponseStream(); * * byte[] data = new byte[2*1024*1024] * * int r = stream.Read(data,0,data.Length); * * string result = System.Text.Encoding.UTF8.GetString(data, 0, r); * * * **/ HttpWebResponse response = (HttpWebResponse)request.GetResponse(); using (StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8)) { string result = sr.ReadToEnd(); return result; } } /// <summary> /// 发出GET请求 /// </summary> /// <param name="Url">请求URL</param> /// <param name="heades">信息头</param> /// <returns></returns> public static string HttpGetByHeader(string Url, WebHeaderCollection heades) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); //添加信息头(header) request.Headers = heades; request.Method = "GET"; request.ContentType = "text/html;charset=UTF-8"; using (var response = request.GetResponse()) { Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8); string retString = myStreamReader.ReadToEnd(); return retString; } } }

测试代码:

[HttpGet] public ActionResult Test() { string url = "http://192.168.2.250:8092/Spread/Campaign/GetCampaignId?campaignName=string"; WebHeaderCollection header = new WebHeaderCollection(); header["Token"] = "AF4DAFC2-1E76-4864-AE5B-AE0FB73C64EF"; string result = Common.HttpTools.HttpGetByHeader(url, header); return Content(result); } public ActionResult TestPost() { string url = "http://192.168.2.250:8092/Spread/Campaign/CreateCampaign"; CampaignArgsModel model = new CampaignArgsModel() { CampaignName = "TestPost", FromEmail = "786483815@qq.com", From = "From", Content = "Content", Interval = 1, Signature = "1", Subject = "Subject", Schedule = DateTime.Now, Categories = new List<string>() { "TestPost" }, }; string param = JsonConvert.SerializeObject(model); WebHeaderCollection header = new WebHeaderCollection(); header["Token"] = "AF4DAFC2-1E76-4864-AE5B-AE0FB73C64EF"; string result = Common.HttpTools.HttpPostByJson(url, param, header); return Content(result); }

 

转载于:https://www.cnblogs.com/zoro-zero/p/4143901.html

相关资源：C# http Get/POST请求封装类