C#请求http向网页发送接收数据的方法

static void Main(string[] args){  string result = Post("http://localhost:5534/Home/ToUrl", "家庭");  Console.WriteLine(result);  Console.ReadKey();}/// <summary>     /// 指定Post地址使用Get 方式获取全部字符串     /// </summary>     /// <param name="url">请求后台地址</param>     /// <param name="content">Post提交数据内容(utf-8编码的)</param>     /// <returns>结果</returns>     public static string Post(string url, string content)    {      //申明一个容器result接收数据      string result = "";      //首先创建一个HttpWebRequest,申明传输方式POST      HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);      req.Method = "POST";      req.ContentType = "application/x-www-form-urlencoded";      //添加POST参数      byte[] data = Encoding.UTF8.GetBytes(content);      req.ContentLength = data.Length;      using (Stream reqStream = req.GetRequestStream())      {        reqStream.Write(data, 0, data.Length);        reqStream.Close();      }      //申明一个容器resp接收返回数据      HttpWebResponse resp = (HttpWebResponse)req.GetResponse();      Stream stream = resp.GetResponseStream();      //获取响应内容       using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))      {        result = reader.ReadToEnd();      }      return result;    }

public ActionResult ToUrl()    {      string result = "";      string jsonStr = "", line;      try      {        Stream streamResponse = Request.InputStream;        StreamReader streamRead = new StreamReader(streamResponse, Encoding.UTF8);        while ((line = streamRead.ReadLine()) != null)        {          jsonStr += line;        }        streamResponse.Close();        streamRead.Close();        result = jsonStr;      }      catch (Exception ex)      {        result = "msg-数据发布（In）异常：" + ex.Message;      }      Service service = new Service();      //调用AddCatagorys方法，把数据添加进去      service.AddCatagorys(result);      //再调用GetCatas方法，获取到分类列表      List<Catagory> list = service.GetCatagories();      //找到分类列表最后一个分类，也就是刚刚添加的分类      Catagory catagory = list[list.Count - 1];      //返回Json      //return Json(catagory)      //返回一个ID，Content()里面是string类型，所以要把int转为string类型      return Content(catagory.ID.ToString());    }