C#使用GET、POST请求获取结果（二）

港控/mmm° 2021-09-14 09:06 376阅读 0赞

C\#使用GET、POST请求获取结果。

创建HttpWebHelper.cs类

public class HttpWebHelper
    {
        #region Post方式请求
    
        public static T Post<T>(string url, string data, Dictionary<string, string> Headers = null)
        {
            byte[] bytes = Encoding.UTF8.GetBytes(data);
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    
            //加入头信息
            if (Headers != null)
            {
                foreach (KeyValuePair<string, string> item in Headers)
                {
                    request.Headers.Add(item.Key, item.Value);
                }
            }
    
            //写数据
            request.Method = "POST";
            request.ContentLength = bytes.Length;
            request.ContentType = "application/json";
            Stream reqstream = request.GetRequestStream();
            reqstream.Write(bytes, 0, bytes.Length);
    
            //读数据
            request.Timeout = 300000;
            request.Headers.Set("Pragma", "no-cache");
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream streamReceive = response.GetResponseStream();
            StreamReader streamReader = new StreamReader(streamReceive, Encoding.UTF8);
            string strResult = streamReader.ReadToEnd();
    
            //关闭流
            reqstream.Close();
            streamReader.Close();
            streamReceive.Close();
            request.Abort();
            response.Close();
    
            return JsonConvert.DeserializeObject<T>(strResult);
        }
    
        #endregion
    
        #region Get方式请求
    
        public static T Get<T>(string url, Dictionary<string, string> Headers = null)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    
            //加入头信息
            if (Headers != null)
            {
                foreach (KeyValuePair<string, string> item in Headers)
                {
                    request.Headers.Add(item.Key, item.Value);
                }
            }
    
            request.Method = "GET";
            request.ContentType = "application/json";
            request.Timeout = 300000;
            request.Headers.Set("Pragma", "no-cache");
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream streamReceive = response.GetResponseStream();
            StreamReader streamReader = new StreamReader(streamReceive, Encoding.UTF8);
            string strResult = streamReader.ReadToEnd();
    
            streamReader.Close();
            streamReceive.Close();
            request.Abort();
            response.Close();
    
            return JsonConvert.DeserializeObject<T>(strResult);
        }
    
        public static string Get(string url, Dictionary<string, string> Headers = null)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    
            //加入头信息
            if (Headers != null)
            {
                foreach (KeyValuePair<string, string> item in Headers)
                {
                    request.Headers.Add(item.Key, item.Value);
                }
            }
    
            request.Method = "GET";
            request.ContentType = "application/json";
            request.Timeout = 300000;
            request.Headers.Set("Pragma", "no-cache");
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream streamReceive = response.GetResponseStream();
            StreamReader streamReader = new StreamReader(streamReceive, Encoding.UTF8);
            string strResult = streamReader.ReadToEnd();
    
            streamReader.Close();
            streamReceive.Close();
            request.Abort();
            response.Close();
    
            return strResult;
        }
        #endregion
    
        #region 获取时间戳
        /// <summary>  
        /// 获取时间戳  
        /// </summary>  
        /// <returns></returns>  
        public static string GetTimeStamp()
        {
            TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            return Convert.ToInt64(ts.TotalMilliseconds).ToString();
        }
        #endregion
    }