API通用调用帮助类

        //调用示例
        /// <summary>
        /// HttpPath请求
        /// </summary>
        /// <param name="serviceUrl">请求地址</param>
        /// <param name="data">发送数据</param>
        /// <param name="statusCode">http响应状态</param>
        /// <returns></returns>
        public static string CommonHttpPathRequest(string serviceUrl, object data, out HttpStatusCode statusCode)
        {
            string ReturnString = string.Empty;
            try
            {
                //构造http请求的对象
                HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(serviceUrl);
                //转成网络流
                byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(JsonConvert.SerializeObject(data));
                //设置
                myRequest.Method = "Patch";
                myRequest.ContentLength = buf.Length;
                myRequest.ContentType = "application/json";
                myRequest.MaximumAutomaticRedirections = 1;
                myRequest.AllowAutoRedirect = true;
                // 发送请求
                Stream newStream = myRequest.GetRequestStream();
                newStream.Write(buf, 0, buf.Length);
                newStream.Close();
                // 获得接口返回值
                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
                statusCode = myResponse.StatusCode;
                StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
                ReturnString = reader.ReadToEnd();
                reader.Close();
                myResponse.Close();
            }
            catch (WebException e)
            {
                ReturnString = e.Message;
                statusCode = HttpStatusCode.GatewayTimeout;
                //HttpWebResponse errResponse = (HttpWebResponse)e.Response;
                //statusCode = errResponse.StatusCode;
                //StreamReader reader = new StreamReader(errResponse.GetResponseStream(), Encoding.UTF8);
                //ReturnString = reader.ReadToEnd();
            }
            return ReturnString;
        } 

 public static class RestClient
    {
        private static string BaseUri = "";
    
        #region Delete方式
        public static string HttpDelete(string data, string uri)
        {
            return CommonHttpRequest(data, uri, "DELETE");
        }

        public static string Delete(string uri)
        {
            //Web访问对象64
            string serviceUrl = string.Format("{0}/{1}", BaseUri, uri);
            HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(serviceUrl);
            myRequest.Method = "DELETE";
            // 获得接口返回值68
            HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
            StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
            //string ReturnXml = HttpUtility.UrlDecode(reader.ReadToEnd());
            string ReturnXml = reader.ReadToEnd();
            reader.Close();
            myResponse.Close();
            return ReturnXml;
        }
        #endregion

        #region Put方式
        public static string Put(string data, string uri)
        {
            return CommonHttpRequest(data, uri, "PUT");
        }
        #endregion


        #region Patch方式
        public static string Patch(string data, string uri)
        {
            return CommonHttpRequest(data, uri, "Patch");
        }
        #endregion

        #region POST方式实现

        public static string Post(string data, string uri)
        {
            return CommonHttpRequest(data, uri, "POST");
        }

        public static string CommonHttpRequest(string data, string uri, string type)
        {
            //Web访问对象，构造请求的url地址
            string serviceUrl = string.Format("{0}/{1}", BaseUri, uri);

            //构造http请求的对象
            HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(serviceUrl);
            //转成网络流
            byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(data);
            //设置
            myRequest.Method = type;
            myRequest.ContentLength = buf.Length;
            myRequest.ContentType = "application/json";
            myRequest.MaximumAutomaticRedirections = 1;
            myRequest.AllowAutoRedirect = true;
            // 发送请求
            Stream newStream = myRequest.GetRequestStream();
            newStream.Write(buf, 0, buf.Length);
            newStream.Close();
            // 获得接口返回值
            HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
            StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
            string ReturnXml = reader.ReadToEnd();
            reader.Close();
            myResponse.Close();
            return ReturnXml;
        }
        #endregion

        #region GET方式实现
        public static string Get(string uri)
        {
            //Web访问对象64
            string serviceUrl = string.Format("{0}/{1}",BaseUri, uri);

            //构造一个Web请求的对象
            HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(serviceUrl);
            // 获得接口返回值68
            //获取web请求的响应的内容
            HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();

            //通过响应流构造一个StreamReader
            StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
            //string ReturnXml = HttpUtility.UrlDecode(reader.ReadToEnd());
            string ReturnXml = reader.ReadToEnd();
            reader.Close();
            myResponse.Close();
            return ReturnXml;
        }
        #endregion
    }