随笔 - 89 文章 - 0 评论 - 2 阅读 - 11万

c# 后台发送post请求

<strong>普通请求<br></strong><br> public string GetWarningData(string consumerId)
        {
            string ret = string.Empty;
            try
            {
                string nUrl = "https://******/messages?consumerId=" + consumerId + "&autoCommit=true";
                System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
                HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(nUrl);
                webReq.Method = "POST";
                webReq.ContentType = "application/json";
                webReq.Headers.Add("Authorization", "bearer token值");
                 
                //获取服务端返回
                HttpWebResponse response = (HttpWebResponse)webReq.GetResponse();
                StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
                ret = sr.ReadToEnd().Trim();<br>                //ret 拿到Json返回值，解析，写自己的需求
                sr.Close();
            }
            catch (Exception ex)
            {
 
            }
            return ret;
        }

　　传参请求，此处参数为json字符传

public static string uploadCar(string json)
       {
           string ret = string.Empty;
           Stream reqStream = null;
           try
           {
 
               System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
               HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(“请求的URL地址”);
               webReq.Method = "POST";
               webReq.ContentType = "application/json;charset=utf-8";<br>                webReq.Headers.Add("key", "value");//头
               byte[] data = Encoding.UTF8.GetBytes(json);   //使用utf-8格式组装post参数，json为json格式参数
               webReq.ContentLength = data.Length;
               using (Stream strm = webReq.GetRequestStream())
               {
                   strm.Write(data, 0, data.Length);
               }
 
               using (HttpWebResponse wrs = (HttpWebResponse)webReq.GetResponse())
               {
                   StreamReader read = new StreamReader(wrs.GetResponseStream(), Encoding.Default);
                   ret = read.ReadToEnd();
               }
           }
           catch (Exception ex)
           {
 
           }
           return ret;
       }