一，HttpPost

 public class HttpPost{public string Postdata(string strpost,string url) {//表示空字符串，字段为只读string json = string.Empty;//创建restful请求HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;//请求的方法是postrequest.Method = "post";//请求的内容类型request.ContentType = "application/json";//得到参数string data = strpost;//将字节序列存储到数组中，编码方式为UTF-8byte[] byteData = UTF8Encoding.UTF8.GetBytes(data.ToString());//将数组的元素总和给请求的标头request.ContentLength = byteData.Length;//以流的形式附加参数using (Stream postStream = request.GetRequestStream()){postStream.Write(byteData, 0, byteData.Length);}//执行请求，达到jsonusing (HttpWebResponse response = request.GetResponse() as HttpWebResponse){//以流的形式读取，返回的就是字符串的json格式StreamReader reader = new StreamReader(response.GetResponseStream());json = reader.ReadToEnd();}return json;}}

二，HttpGet

    public class HttpGet{public string Get(string url){//创建请求HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);//GET请求request.Method = "GET";request.ReadWriteTimeout = 5000;request.ContentType = "application/json;charset=UTF-8";HttpWebResponse response = (HttpWebResponse)request.GetResponse();//执行get请求Stream myResponseStream = response.GetResponseStream();StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));//返回内容JSONstring retString = myStreamReader.ReadToEnd();           return retString;}}

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C#中的get和post请求（工具类）

一，HttpPost

二，HttpGet

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