C# JSON POST and GET (정보 전달 및 확인)

/*
    url = http://10.0.0.1   웹서버 주소                    
    lblUrl.Text = { "key1":"value1", "key2":"value2", "key3":"value3" }  JSON 문자열
*/
// JSON POST (정보 전달)
private void JPOST()
{
    try
    {
        // JSON 데이터 전송
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        request.ContentType = "application/json";
        request.Method = "POST";
        using (StreamWriter stream = new StreamWriter(request.GetRequestStream()))
        {
            stream.Write(lblUrl.Text);
            stream.Flush();
            stream.Close();
        }

        // JSON 데이터 전송 결과 학인하기 
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        using (StreamReader reader = new StreamReader(response.GetResponseStream()))
        {
            lblResult.Text = reader.ReadToEnd();
        }
    }
    catch (Exception ex)
    {
        lblResult.Text = ex.Message;
    }
}


/*
    lblGetUrl.Text = http://10.0.0.1/check?key1=     고정값
    txtGetID.Text = value1                           지정값
*/
// JSON GET (정보 확인)
private void JGet()
{
    using (WebClient client = new WebClient())
    {
        client.Encoding = Encoding.UTF8;
        // 결과값을 Json 문자열로 받아온다.
        lblGetRs.Text = client.DownloadString(lblGetUrl.Text + txtGetID.Text);
    }
}