C#访问HTTP请求

场景描述：在cs系统中，调用http服务端的接口

因为cs中没有自带的http请求方法，所以需要用到system.net

 

get方式

        /// <summary>
        /// GET
        /// </summary>
        public void GetHttpData()
        {   
            string uri = "http://www.baidu.com";

            //创建HttpWebRequest请求，设置请求报文信息
            HttpWebRequest request = HttpWebRequest.Create(uri) as HttpWebRequest; 
            request.ContentType = "application/json"; 
            request.Method = "GET";                                 //请求方法
            //request.ProtocolVersion = new Version(1, 1);        //Http/1.1版本
            
            //接收响应，输出响应头部信息以及主体信息 
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;

            #region 接收响应头部信息
            foreach (var item in response.Headers)
            {
                this.rtbData.Text += item.ToString() + ": " +
                response.GetResponseHeader(item.ToString()) + "\n"; 
            }
            #endregion

            #region 接收响应主体信息 
            string content = "";
            using (Stream stream = response.GetResponseStream())
            {
                using (StreamReader sr = new StreamReader(stream, Encoding.UTF8))
                {
                    content = sr.ReadToEnd();
                    sr.Close();
                    stream.Close();
                    response.Close(); 
                } 
            }
            #endregion

            //将接收到的数据显示到界面 
            this.rtbData.Text += content; 
        }

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