using System.IO;
using System.Net;
using System.Text;

namespace ConsoleDemo
{
    public class PostJson
    {
        /**
         * Json的请求头 post请求地址
         */
        public static string Post4Json(string url,string buildRequest)
        {
            string result = "";
            HttpWebRequest request =(HttpWebRequest) WebRequest.Create(url);
            request.Method = "POST";
            request.Timeout = 5000;
            request.ContentType = "application/json";
            byte[] byte4builde = Encoding.UTF8.GetBytes(buildRequest);
            request.ContentLength = byte4builde.Length;
            using (Stream reqStream=request.GetRequestStream())
            {
                reqStream.Write(byte4builde,0,byte4builde.Length);
                reqStream.Close();
            }

            HttpWebResponse response = (HttpWebResponse) request.GetResponse();
            Stream stream = response.GetResponseStream();
            //获得响应内容
            using (StreamReader reader=new StreamReader(stream,Encoding.UTF8))
            {
                result = reader.ReadToEnd();
            }
            return result;
        }
    }
}