HttpWebRequest WebClient给远程服务器上传数据； 未能创建 SSL/TLS 安全通道；JSON字符长度超出限制；

 

未能创建 SSL/TLS 安全通道，添加两句：

ServicePointManager.ServerCertificateValidationCallback += (s, cert, chain, sslPolicyErrors) => true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

 

WebClient给远程服务器上传数据

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public void UploadDataWeatherHourly(List<WeatherHourly> list) {           try     {         using (WebClient client = new WebClient())         {             ServicePointManager.ServerCertificateValidationCallback += (s, cert, chain, sslPolicyErrors) => true;             ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;             var address = "";             address = System.Configuration.ConfigurationManager.AppSettings["UploadUrlHourly"];             client.Headers[HttpRequestHeader.ContentType] = "application/json";             client.Encoding = System.Text.Encoding.UTF8;             //Encryption en = new Encryption();             //var list2 = new List<WeatherHourly>() { };             //for (int i = 0; i < 100; i++)             //{             //    list2.Add(list[i]);             //}             //var postData = en.ByteTo16(en.EncryptObjByte(list));             var data = new PostWeatherHourly { data = list };             string response1 = client.UploadString(address, JsonConvert.SerializeObject(data));              var result = JsonConvert.DeserializeObject<ResultModel>(response1);             LogManage.Info("小时上传数量：" + list.Count.ToString());             LogManage.Info("小时入库成功数量："+result.total.ToString()+"   返回信息："+ result.msg);         }         }     catch (Exception ex)     {               LogManage.Error("UploadDataWeatherHourly", ex);       }   }

　C# MVC 控制器接收数据

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[HttpPost] public JsonResult AddDataHourly(PostWeatherHourly obj) {     ResultModel result = new Models.ResultModel();        var referer = Request.UrlReferrer;     if (referer != null && referer.IsAbsoluteUri)     {         result.msg = "Referrer validate fail!";         return Json(result);     }     Encryption en = new Encryption();     try     {         //var temp = en.Str16ToByte(obj.data);         //var list = en.DecryptObj<List<WeatherHourly>>(temp);         //var num = WeatherHourlyAddRange(list);         var num = WeatherHourlyAddRange(obj.data);         result.msg = "AddDataHourly成功";         result.success = true;         result.total = num;     }     catch (Exception ex)     {         result.msg = ex.Message;         result.success = false;     }     return Json(result); }     public int WeatherHourlyAddRange(List<WeatherHourly> weatherHourlyList) {     int num = -1;     using (var db = new EcologyServiceEntities())     {           var tran = db.Database.BeginTransaction();//开启事务         try         {             db.WeatherHourly.AddRange(weatherHourlyList);               if (weatherHourlyList.Count > 0)             {                 num = db.SaveChanges();                 tran.Commit();  //必须调用Commit()，不然数据不会保存                            }           }         catch (Exception ex)         {             tran.Rollback(); //出错就回滚             //LogManage.Error("小时数据报错", ex);               //若重复错误，则逐条遍历。             while (ex.InnerException != null)             {                 ex = ex.InnerException;                 if (ex.Message.Contains("IX_"))                 {                     foreach (var myObj in weatherHourlyList)                     {                         try                         {                             using (var db3 = new EcologyServiceEntities())                             {                                 db3.WeatherHourly.Add(myObj);                                 db3.SaveChanges();                             }                         }                         catch (Exception ex2)                         {                             }                     }                 }             }         }     }       return num; }

数据接收类

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public class PostWeatherHourly {     public List<WeatherHourly> data { get; set; }   }   public class WeatherHourly {     public int ID { get; set; }     public Nullable<int> StationID { get; set; }     public System.DateTime RecordDate { get; set; }     public int DataHour { get; set; }     public Nullable<double> Temperature { get; set; }     public Nullable<double> AirPressure { get; set; }     public Nullable<double> Rainfall { get; set; }     public Nullable<double> RelativeHumidity { get; set; }     public Nullable<double> AvgWind { get; set; }     public string WindDir { get; set; }     public Nullable<double> Visibility { get; set; } }

　　

 

JSON字符长度超出限制；

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<appSettings>   <add key="aspnet:MaxJsonDeserializerMembers" value="150000000" /> </appSettings> <system.web.extensions>   <scripting>     <webServices>       <jsonSerialization maxJsonLength="2147483644"/>     </webServices>   </scripting> </system.web.extensions>

　　

未用上：HttpWebRequest方式比 WebClient功能更完善，更灵活，当然也更复杂。

        /// <summary>
        /// 发送POST请求
        /// </summary>
        /// <param name="url">请求URL</param>
        /// <param name="data">请求参数</param>
        /// <returns></returns>
        //static string HttpPost(string url, string data)
        //{
        //    HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
        //    //字符串转换为字节码
        //    byte[] bs = Encoding.UTF8.GetBytes(data);
        //    //参数类型，这里是json类型
        //    //还有别的类型如"application/x-www-form-urlencoded"，不过我没用过(逃
        //    httpWebRequest.ContentType = "application/json";
        //    //参数数据长度
        //    httpWebRequest.ContentLength = bs.Length;
        //    //设置请求类型
        //    httpWebRequest.Method = "POST";
        //    //设置超时时间
        //    httpWebRequest.Timeout = 20000;
        //    //将参数写入请求地址中
        //    httpWebRequest.GetRequestStream().Write(bs, 0, bs.Length);
        //    //发送请求
        //    HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
        //    //读取返回数据
        //    StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream(), Encoding.UTF8);
        //    string responseContent = streamReader.ReadToEnd();
        //    streamReader.Close();
        //    httpWebResponse.Close();
        //    httpWebRequest.Abort();
        //    return responseContent;
        //}


        ///// <summary>
        ///// 发送GET请求
        ///// </summary>
        ///// <param name="url">请求URL，如果需要传参，在URL末尾加上“？+参数名=参数值”即可</param>
        ///// <returns></returns>
        //static string HttpGet(string url)
        //{
        //    //创建
        //    HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
        //    //设置请求方法
        //    httpWebRequest.Method = "GET";
        //    //请求超时时间
        //    httpWebRequest.Timeout = 20000;
        //    //发送请求
        //    HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
        //    //利用Stream流读取返回数据
        //    StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream(), Encoding.UTF8);
        //    //获得最终数据，一般是json
        //    string responseContent = streamReader.ReadToEnd();
        //    streamReader.Close();
        //    httpWebResponse.Close();
        //    return responseContent;
        //}

 

加密部分省略。

1、不需要保密的数据，就加密一下 token 或 自定义的用户名、密码； 一般采用不可逆的MD5加密。

2、需要保密的数据：采用可逆的：RSA或AES加密  https://blog.csdn.net/huanhuanq1209/article/details/80614271

参考文档：

https://blog.csdn.net/rztyfx/article/details/110247593

https://q.cnblogs.com/q/98826/

http://www.ruanyifeng.com/blog/2014/02/ssl_tls.html