C# 调用API接口处理公共类 自带JSON实体互转类

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Net;using System.Net.Security;using System.Security.Cryptography.X509Certificates;using System.Text;using System.Threading.Tasks;using System.Web;namespace AirMedia.Wap.Core{    public static class HttpWebHelper    {        /// <SUMMARY>          /// httpwebrequest类中的一些属性的集合          /// </SUMMARY>          public class RequestParam        {            /// <SUMMARY>              /// 获取或设置request类中的Accept属性              /// 用以设置接受的文件类型              /// </SUMMARY>                          public string Accept { get; set; }            /// <SUMMARY>              /// 获取或设置request类中的ContentType属性              /// 用以设置请求的媒体类型              /// </SUMMARY>                        public string ContentType { get; set; }            /// <SUMMARY>              /// 获取或设置request类中的UserAgent属性              /// 用以设置请求的客户端信息              /// </SUMMARY>              public string UserAgent { get; set; }            /// <SUMMARY>              /// 获取或设置request类中的Method属性              /// 可以将 Method 属性设置为任何 HTTP 1.1 协议谓词：GET、HEAD、POST、PUT、DELETE、TRACE 或 OPTIONS。              /// 如果 ContentLength 属性被设置为 -1 以外的任何值，则必须将 Method 属性设置为上载数据的协议属性。              /// </SUMMARY>                          public string Method { get; set; }            /// <summary>            /// 发送的数据            /// </summary>            public byte[] PostData { get; set; }        }        /// <SUMMARY>          /// 构建一个httt请求以获取目标链接的cookies,需要传入目标的登录地址和相关的post信息,返回完成登录的cookies,以及返回的html内容          /// </SUMMARY>          /// <PARAM name="url">登录页面的地址</PARAM>          /// <PARAM name="post">post信息</PARAM>          /// <PARAM name="strHtml">输出的html代码</PARAM>          /// <PARAM name="rppt">请求的标头所需要的相关属性设置</PARAM>          /// <RETURNS>请求完成后的cookies</RETURNS>          public static CookieCollection GetCookie(string url, RequestParam rppt, out string strHtml)        {            CookieCollection ckclReturn = new CookieCollection();            CookieContainer cc = new CookieContainer();            HttpWebRequest hwRequest;            HttpWebResponse hwResponse;            Stream stream;            hwRequest = (HttpWebRequest)HttpWebRequest.Create(new Uri(url));            hwRequest.CookieContainer = cc;            if (rppt != null)            {                hwRequest.Accept = rppt.Accept;                hwRequest.ContentType = rppt.ContentType;                hwRequest.UserAgent = rppt.UserAgent;                hwRequest.Method = rppt.Method;                hwRequest.ContentLength = rppt.PostData.Length;                //写入标头                  stream = hwRequest.GetRequestStream();                stream.Write(rppt.PostData, 0, rppt.PostData.Length);                stream.Close();            }            //发送请求获取响应内容              try            {                hwResponse = (HttpWebResponse)hwRequest.GetResponse();            }            catch            {                strHtml = "";                return ckclReturn;            }            stream = hwResponse.GetResponseStream();            StreamReader sReader = new StreamReader(stream, Encoding.UTF8);            strHtml = sReader.ReadToEnd();            sReader.Close();            stream.Close();            //获取缓存内容              ckclReturn = hwResponse.Cookies;            return ckclReturn;        }        /// <SUMMARY>          /// 根据已经获取的有效cookies来获取目标链接的内容          /// </SUMMARY>          /// <PARAM name="strUri">目标链接的url</PARAM>          ///<PARAM name="post">post的byte信息</PARAM>          /// <PARAM name="ccl">已经获取到的有效cookies</PARAM>          /// <PARAM name="rppt">头属性的相关设置</PARAM>          /// <RETURNS>目标连接的纯文本:"txt/html"</RETURNS>          public static string GetHtmlByCookies(string strUri, byte[] post, CookieCollection ccl, RequestParam rppt)        {            CookieContainer cc = new CookieContainer();            HttpWebRequest hwRequest;            HttpWebResponse hwResponse;            //构建即将发送的包头                     hwRequest = (HttpWebRequest)HttpWebRequest.Create(new Uri(strUri));            cc.Add(ccl);            hwRequest.CookieContainer = cc;            hwRequest.Accept = rppt.Accept;            hwRequest.ContentType = rppt.ContentType;            hwRequest.UserAgent = rppt.UserAgent;            hwRequest.Method = rppt.Method;            hwRequest.ContentLength = post.Length;            //写入post信息              Stream stream;            stream = hwRequest.GetRequestStream();            stream.Write(post, 0, post.Length);            stream.Close();            //发送请求获取响应内容              try            {                hwResponse = (HttpWebResponse)hwRequest.GetResponse();            }            catch            {                return "";            }            stream = hwResponse.GetResponseStream();            StreamReader sReader = new StreamReader(stream, Encoding.Default);            string strHtml = sReader.ReadToEnd();            sReader.Close();            stream.Close();            //返回值                        return strHtml;        }        /// <summary>          /// 根据泛型来构建字符串用于post          /// </summary>          /// <param name="dir">带有键值对的泛型</param>          /// <returns>构建完毕的字符串</returns>          public static byte[] CreatePostData(Dictionary<string, string> dir)        {            StringBuilder strPost = new StringBuilder();            foreach (KeyValuePair<string, string> kvp in dir)            {                strPost.Append(kvp.Key);                strPost.Append('=');                if (!string.IsNullOrWhiteSpace(kvp.Value))                {                    strPost.Append(System.Web.HttpUtility.UrlEncode(kvp.Value));                }                strPost.Append('&');            }            return CreatePostData(strPost.ToString().TrimEnd('&'));        }        public static byte[] CreatePostData(string input)        {            return Encoding.Default.GetBytes(input);        }        /// <summary>        /// 向指定uri发起GET请求        /// </summary>        /// <param name="uri"></param>        /// <param name="request"></param>        /// <returns></returns>        public static string GET(string url)        {            WebClient wc = new WebClient();            wc.Encoding = System.Text.Encoding.UTF8;            string s = wc.DownloadString(url);            s = HttpUtility.UrlDecode(s);            return s;        }    }    /// <summary>      /// 有关HTTP请求的辅助类      /// </summary>      public class HttpWebResponseUtility    {        private static readonly string DefaultUserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";        /// <summary>          /// 创建GET方式的HTTP请求          /// </summary>          /// <param name="url">请求的URL</param>          /// <param name="timeout">请求的超时时间</param>          /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>          /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>          /// <returns></returns>          public static HttpWebResponse CreateGetHttpResponse(string url, IDictionary<string, string> parameters, int? timeout, string userAgent, Encoding requestEncoding, CookieCollection cookies)        {            if (string.IsNullOrEmpty(url))            {                throw new ArgumentNullException("url");            }            StringBuilder buffer = new StringBuilder();            if (!(parameters == null || parameters.Count == 0))            {                int i = 0;                foreach (string key in parameters.Keys)                {                    if (i > 0)                    {                        buffer.AppendFormat("&{0}={1}", key, parameters[key]);                    }                    else                    {                        buffer.AppendFormat("{0}={1}", key, parameters[key]);                    }                    i++;                }            }            if (buffer.Length > 1)            {                url = url + "?" + buffer.ToString();            }            url = HttpUtility.UrlDecode(url);            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;            request.Method = "GET";            request.UserAgent = DefaultUserAgent;            if (!string.IsNullOrEmpty(userAgent))            {                request.UserAgent = userAgent;            }            if (timeout.HasValue)            {                request.Timeout = timeout.Value;            }            if (cookies != null)            {                request.CookieContainer = new CookieContainer();                request.CookieContainer.Add(cookies);            }            return request.GetResponse() as HttpWebResponse;        }        /// <summary>          /// 创建POST方式的HTTP请求          /// </summary>          /// <param name="url">请求的URL</param>          /// <param name="parameters">随同请求POST的参数名称及参数值字典</param>          /// <param name="timeout">请求的超时时间</param>          /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>          /// <param name="requestEncoding">发送HTTP请求时所用的编码</param>          /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>          /// <returns></returns>          public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary<string, string> parameters, int? timeout, string userAgent, Encoding requestEncoding, CookieCollection cookies)        {            if (string.IsNullOrEmpty(url))            {                throw new ArgumentNullException("url");            }            if (requestEncoding == null)            {                throw new ArgumentNullException("requestEncoding");            }            HttpWebRequest request = null;            //如果是发送HTTPS请求              if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))            {                ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);                request = WebRequest.Create(url) as HttpWebRequest;                request.ProtocolVersion = HttpVersion.Version10;            }            else            {                request = WebRequest.Create(url) as HttpWebRequest;            }            request.Method = "POST";            // request.ContentType = "application/x-www-form-urlencoded";            request.ContentType = "application/json";            if (!string.IsNullOrEmpty(userAgent))            {                request.UserAgent = userAgent;            }            else            {                request.UserAgent = DefaultUserAgent;            }            if (timeout.HasValue)            {                request.Timeout = timeout.Value;            }            if (cookies != null)            {                request.CookieContainer = new CookieContainer();                request.CookieContainer.Add(cookies);            }            //如果需要POST数据              if (!(parameters == null || parameters.Count == 0))            {                StringBuilder buffer = new StringBuilder();                int i = 0;                foreach (string key in parameters.Keys)                {                    if (i > 0)                    {                        buffer.AppendFormat("&{0}={1}", key, parameters[key]);                    }                    else                    {                        buffer.AppendFormat("{0}={1}", key, parameters[key]);                    }                    i++;                }                byte[] data = requestEncoding.GetBytes(buffer.ToString());                using (Stream stream = request.GetRequestStream())                {                    stream.Write(data, 0, data.Length);                }            }            return request.GetResponse() as HttpWebResponse;        }        private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)        {            return true; //总是接受          }        public static string PostXml(string url, string xml)        {            byte[] bytes = Encoding.UTF8.GetBytes(xml);            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);            request.Method = "POST";            request.ContentLength = bytes.Length;            request.ContentType = "text/xml";            using (Stream requestStream = request.GetRequestStream())            {                requestStream.Write(bytes, 0, bytes.Length);            }            HttpWebResponse response = (HttpWebResponse)request.GetResponse();            if (response.StatusCode != HttpStatusCode.OK)            {                string message = String.Format("POST failed. Received HTTP {0}",                response.StatusCode);                throw new ApplicationException(message);            }            System.IO.StreamReader sr = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("utf-8"));            string res = sr.ReadToEnd();            sr.Close();            response.Close();            return res;        }    }}

调用

string requestUrl = CoreInterface.ApiDomain + "api/Login/AddQRLog?grid={0}&ad={1}&grName={2}&vc={3}&br={4}&sc={5}&ts={6}&ps={7}";            requestUrl = string.Format(requestUrl, grid, ad, grName, vc, br, sc, ts, ps);            string resultJson = "";            //try            //{                HttpWebResponse response = HttpWebResponseUtility.CreateGetHttpResponse(requestUrl, null, 1000000, "", null, null);                System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());                resultJson = sr.ReadToEnd();                sr.Close();            //}            //catch (Exception)            //{            //    return RedirectToAction("Index", "Error");            //}

C# 自带JSON转换类

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Runtime.Serialization.Json;namespace AirMedia.Wap.Core{    public static class JsonHelper    {        #region DataContractJsonSerializer        /// <summary>        /// 对象转换成json        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="jsonObject">需要格式化的对象</param>        /// <returns>Json字符串</returns>        public static string DataContractJsonSerialize<T>(T jsonObject)        {            DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));            string json = null;            using (MemoryStream ms = new MemoryStream()) //定义一个stream用来存发序列化之后的内容            {                serializer.WriteObject(ms, jsonObject);                json = Encoding.UTF8.GetString(ms.GetBuffer()); //将stream读取成一个字符串形式的数据，并且返回                ms.Close();            }            return json;        }        /// <summary>        /// json字符串转换成对象        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="json">要转换成对象的json字符串</param>        /// <returns></returns>        public static T DataContractJsonDeserialize<T>(string json)        {            DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));            T obj = default(T);            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json)))            {                obj = (T)serializer.ReadObject(ms);                ms.Close();            }            return obj;        }        #endregion    }}

时间戳

        /// <summary>        /// 时间戳        /// </summary>        public static string TS        {            get            {                DateTime dt = new DateTime(1970, 1, 1);                TimeSpan d = DateTime.Now - dt;                long seconddiff = d.Ticks / 10000000;                return seconddiff.ToString();            }        }

md5加密

/// <summary>        /// md5加密        /// </summary>        /// <param name="strText"></param>        /// <returns></returns>        public static string MD5Encrypt(string strText)        {            return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strText, "MD5");        }