C# WebRequest

時間 2019-11-10

標籤 c# webrequest 欄目 C# 简体版

原文原文鏈接

HttpWebRequest和HttpWebResponse類是用於發送和接收HTTP數據的最好選擇。它們支持一系列有用的屬性。這兩個類位於System.Net命名空間，默認狀況下這個類對於控制檯程序來講是可訪問的。請注意，HttpWebRequest對象不是利用new關鍵字經過構造函數來建立的，而是利用工廠機制（factory mechanism）經過Create()方法來建立的。另外，你可能預計須要顯式地調用一個「Send」方法，實際上不須要。接下來調用 HttpWebRequest.GetResponse()方法返回的是一個HttpWebResponse對象。你能夠把HTTP響應的數據流（stream）綁定到一個StreamReader對象，而後就能夠經過ReadToEnd()方法把整個HTTP響應做爲一個字符串取回。也能夠經過 StreamReader.ReadLine()方法逐行取回HTTP響應的內容。html

這種技術展現瞭如何限制請求重定向（request redirections）的次數，而且設置了一個超時限制。下面是HttpWebRequest的一些屬性，這些屬性對於輕量級的自動化測試程序是很是重要的。node

l AllowAutoRedirect：獲取或設置一個值，該值指示請求是否應跟隨重定向響應。web

l CookieContainer：獲取或設置與此請求關聯的cookie。json

l Credentials：獲取或設置請求的身份驗證信息。api

l KeepAlive：獲取或設置一個值，該值指示是否與 Internet 資源創建持久性鏈接。瀏覽器

l MaximumAutomaticRedirections：獲取或設置請求將跟隨的重定向的最大數目。緩存

l Proxy：獲取或設置請求的代理信息。服務器

l SendChunked：獲取或設置一個值，該值指示是否將數據分段發送到 Internet 資源。cookie

l Timeout：獲取或設置請求的超時值。網絡

l UserAgent：獲取或設置 User-agent HTTP 標頭的值

C# HttpWebRequest提交數據方式其實就是GET和POST兩種，那麼具體的實現以及操做注意事項是什麼呢？那麼本文就向你詳細介紹C# HttpWebRequest提交數據方式的這兩種利器。

C# HttpWebRequest提交數據方式學習以前咱們先來看看什麼是HttpWebRequest，它是 .net 基類庫中的一個類，在命名空間 System.Net 下面，用來使用戶經過HTTP協議和服務器交互。

C# HttpWebRequest的做用：

HttpWebRequest對HTTP協議進行了完整的封裝，對HTTP協議中的 Header, Content, Cookie 都作了屬性和方法的支持，很容易就能編寫出一個模擬瀏覽器自動登陸的程序。

C# HttpWebRequest提交數據方式：

程序使用HTTP協議和服務器交互主要是進行數據的提交，一般數據的提交是經過 GET 和 POST 兩種方式來完成，下面對這兩種方式進行一下說明：

C# HttpWebRequest提交數據方式1. GET 方式。

GET 方式經過在網絡地址附加參數來完成數據的提交，好比在地址 http://www.google.com/webhp?hl=zh-CN 中，前面部分 http://www.google.com/webhp 表示數據提交的網址，後面部分 hl=zh-CN 表示附加的參數，其中 hl 表示一個鍵(key)， zh-CN 表示這個鍵對應的值(value)。程序代碼以下：

HttpWebRequest req =

(HttpWebRequest) HttpWebRequest.Create(

"http://www.google.com/webhp?hl=zh-CN" );

req.Method = "GET";

using (WebResponse wr = req.GetResponse())

{

//在這裏對接收到的頁面內容進行處理

}

C# HttpWebRequest提交數據方式2. POST 方式。

POST 方式經過在頁面內容中填寫參數的方法來完成數據的提交，參數的格式和 GET 方式同樣，是相似於 hl=zh-CN&newwindow=1 這樣的結構。程序代碼以下：

string param = "hl=zh-CN&newwindow=1"; //參數

byte[] bs = Encoding.ASCII.GetBytes(param); //參數轉化爲ascii碼

HttpWebRequest req = (HttpWebRequest) HttpWebRequest.Create( "http://www.google.com/intl/zh-CN/" ); //建立request

req.Method = "POST"; //肯定傳值的方式，此處爲post方式傳值

req.ContentType = "application/x-www-form-urlencoded";

req.ContentLength = bs.Length;

using (Stream reqStream = req.GetRequestStream())

{

reqStream.Write(bs, 0, bs.Length);

}

using (WebResponse wr = req.GetResponse())

{

//在這裏對接收到的頁面內容進行處理

}

在上面的代碼中，咱們訪問了 www.google.com 的網址，分別以 GET 和 POST 方式提交了數據，並接收了返回的頁面內容。然而，若是提交的參數中含有中文，那麼這樣的處理是不夠的，須要對其進行編碼，讓對方網站可以識別。

C# HttpWebRequest提交數據方式3. 使用 GET 方式提交中文數據。

GET 方式經過在網絡地址中附加參數來完成數據提交，對於中文的編碼，經常使用的有 gb2312 和 utf8 兩種，用 gb2312 方式編碼訪問的程序代碼以下：

Encoding myEncoding = Encoding.GetEncoding("gb2312"); //肯定用哪一種中文編碼方式

string address = "http://www.baidu.com/s?" + HttpUtility.UrlEncode("參數一", myEncoding) + "=" + HttpUtility.UrlEncode("值一", myEncoding); //拼接數據提交的網址和通過中文編碼後的中文參數

HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(address); //建立request

req.Method = "GET"; //肯定傳值方式，此處爲get方式

using (WebResponse wr = req.GetResponse())

{

//在這裏對接收到的頁面內容進行處理

}

在上面的程序代碼中，咱們以 GET 方式訪問了網址 http://www.baidu.com/s ，傳遞了參數「參數一=值一」，因爲沒法告知對方提交數據的編碼類型，因此編碼方式要以對方的網站爲標準。常見的網站中， www.baidu.com （百度）的編碼方式是 gb2312, www.google.com （谷歌）的編碼方式是 utf8。

C# HttpWebRequest提交數據方式4. 使用 POST 方式提交中文數據。

POST 方式經過在頁面內容中填寫參數的方法來完成數據的提交，因爲提交的參數中能夠說明使用的編碼方式，因此理論上能得到更大的兼容性。用 gb2312 方式編碼訪問的程序代碼以下：

Encoding myEncoding = Encoding.GetEncoding("gb2312"); //肯定中文編碼方式。此處用gb2312

string param = HttpUtility.UrlEncode("參數一", myEncoding) + "=" + HttpUtility.UrlEncode("值一", myEncoding) + "&" + HttpUtility.UrlEncode("參數二", myEncoding) + "=" + HttpUtility.UrlEncode("值二", myEncoding);

byte[] postBytes = Encoding.ASCII.GetBytes(param); //將參數轉化爲assic碼

HttpWebRequest req = (HttpWebRequest) HttpWebRequest.Create( "http://www.baidu.com/s" );

req.Method = "POST";

req.ContentType = "application/x-www-form-urlencoded;charset=gb2312";

req.ContentLength = postBytes.Length;

using (Stream reqStream = req.GetRequestStream())

{

reqStream.Write(bs, 0, bs.Length);

}

using (WebResponse wr = req.GetResponse())

{

//在這裏對接收到的頁面內容進行處理

}

從上面的代碼能夠看出， POST 中文數據的時候，先使用 UrlEncode 方法將中文字符轉換爲編碼後的 ASCII 碼，而後提交到服務器，提交的時候能夠說明編碼的方式，用來使對方服務器可以正確的解析。

以上列出了客戶端程序使用HTTP協議與服務器交互的狀況，經常使用的是 GET 和 POST 方式。如今流行的 WebService 也是經過 HTTP 協議來交互的，使用的是 POST 方法。與以上稍有所不一樣的是， WebService 提交的數據內容和接收到的數據內容都是使用了 XML 方式編碼。因此， HttpWebRequest 也可使用在調用 WebService 的狀況下。

 1 #region 公共方法
 2         /// <summary>
 3         /// Get數據接口
 4         /// </summary>
 5         /// <param name="getUrl">接口地址</param>
 6         /// <returns></returns>
 7         private static string GetWebRequest(string getUrl)
 8         {
 9             string responseContent = "";
10 
11             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(getUrl);
12             request.ContentType = "application/json";
13             request.Method = "GET";
14 
15             HttpWebResponse response = (HttpWebResponse)request.GetResponse();
16             //在這裏對接收到的頁面內容進行處理
17             using (Stream resStream = response.GetResponseStream())
18             {
19                 using (StreamReader reader = new StreamReader(resStream, Encoding.UTF8))
20                 {
21                     responseContent = reader.ReadToEnd().ToString();
22                 }
23             }
24             return responseContent;
25         }
26         /// <summary>
27         /// Post數據接口
28         /// </summary>
29         /// <param name="postUrl">接口地址</param>
30         /// <param name="paramData">提交json數據</param>
31         /// <param name="dataEncode">編碼方式(Encoding.UTF8)</param>
32         /// <returns></returns>
33         private static string PostWebRequest(string postUrl, string paramData, Encoding dataEncode)
34         {
35             string responseContent = string.Empty;
36             try
37             {
38                 byte[] byteArray = dataEncode.GetBytes(paramData); //轉化
39                 HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(new Uri(postUrl));
40                 webReq.Method = "POST";
41                 webReq.ContentType = "application/x-www-form-urlencoded";
42                 webReq.ContentLength = byteArray.Length;
43                 using (Stream reqStream = webReq.GetRequestStream())
44                 {
45                     reqStream.Write(byteArray, 0, byteArray.Length);//寫入參數
46                     //reqStream.Close();
47                 }
48                 using (HttpWebResponse response = (HttpWebResponse)webReq.GetResponse())
49                 {
50                     //在這裏對接收到的頁面內容進行處理
51                     using (StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.Default))
52                     {
53                         responseContent = sr.ReadToEnd().ToString();
54                     }
55                 }
56             }
57             catch (Exception ex)
58             {
59                 return ex.Message;
60             }
61             return responseContent;
62         }
63 
64         #endregion

View Code

post支持cookie

 1 /// <summary>
 2         /// 發起Post請求（採用HttpWebRequest，支持傳Cookie）
 3         /// </summary>
 4         /// <param name="strUrl">請求Url</param>
 5         /// <param name="formData">發送的表單數據</param>
 6         /// <param name="strResult">返回請求結果（若是請求失敗，返回異常消息）</param>
 7         /// <param name="cookieContainer">隨同HTTP請求發送的Cookie信息，若是不須要身份驗證能夠爲空</param>
 8         /// <returns>返回：是否請求成功</returns>
 9         public static bool HttpPost(string strUrl, Dictionary<string, string> formData, CookieContainer cookieContainer, out string strResult)
10         {
11             string strPostData = null;
12             if (formData != null && formData.Count > 0)
13             {
14                 StringBuilder sbData = new StringBuilder();
15                 int i = 0;
16                 foreach (KeyValuePair<string, string> data in formData)
17                 {
18                     if (i > 0)
19                     {
20                         sbData.Append("&");
21                     }
22                     sbData.AppendFormat("{0}={1}", data.Key, data.Value);
23                     i++;
24                 }
25                 strPostData = sbData.ToString();
26             }
27 
28             byte[] postBytes = string.IsNullOrEmpty(strPostData) ? new byte[0] : Encoding.UTF8.GetBytes(strPostData);
29 
30             return HttpPost(strUrl, postBytes, cookieContainer, out strResult);
31         }

View Code

post上傳文件

 1 /// <summary>
 2         /// 發起Post文件請求（採用HttpWebRequest，支持傳Cookie）
 3         /// </summary>
 4         /// <param name="strUrl">請求Url</param>
 5         /// <param name="strFilePostName">上傳文件的PostName</param>
 6         /// <param name="strFilePath">上傳文件路徑</param>
 7         /// <param name="cookieContainer">隨同HTTP請求發送的Cookie信息，若是不須要身份驗證能夠爲空</param>
 8         /// <param name="strResult">返回請求結果（若是請求失敗，返回異常消息）</param>
 9         /// <returns>返回：是否請求成功</returns>
10         public static bool HttpPostFile(string strUrl, string strFilePostName, string strFilePath, CookieContainer cookieContainer, out string strResult)
11         {
12             HttpWebRequest request = null;
13             FileStream fileStream = FileHelper.GetFileStream(strFilePath);
14 
15             try
16             {
17                 if (fileStream == null)
18                 {
19                     throw new FileNotFoundException();
20                 }
21 
22                 request = (HttpWebRequest)WebRequest.Create(strUrl);
23                 request.Method = "POST";
24                 request.KeepAlive = false;
25                 request.Timeout = 30000;
26 
27                 if (cookieContainer != null)
28                 {
29                     request.CookieContainer = cookieContainer;
30                 }
31 
32                 string boundary = string.Format("---------------------------{0}", DateTime.Now.Ticks.ToString("x"));
33 
34                 byte[] header = Encoding.UTF8.GetBytes(string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"; filename=\"{2}\"\r\nContent-Type: application/octet-stream\r\n\r\n",
35                     boundary, strFilePostName, Path.GetFileName(strFilePath)));
36                 byte[] footer = Encoding.UTF8.GetBytes(string.Format("\r\n--{0}--\r\n", boundary));
37 
38                 request.ContentType = string.Format("multipart/form-data; boundary={0}", boundary);
39                 request.ContentLength = header.Length + fileStream.Length + footer.Length;
40 
41                 using (Stream reqStream = request.GetRequestStream())
42                 {
43                     // 寫入分割線及數據信息
44                     reqStream.Write(header, 0, header.Length);
45 
46                     // 寫入文件
47                     FileHelper.WriteFile(reqStream, fileStream);
48 
49                     // 寫入尾部
50                     reqStream.Write(footer, 0, footer.Length);
51                 }
52 
53                 strResult = GetResponseResult(request, cookieContainer);
54             }
55             catch (Exception ex)
56             {
57                 strResult = ex.Message;
58                 return false;
59             }
60             finally
61             {
62                 if (request != null)
63                 {
64                     request.Abort();
65                 }
66                 if (fileStream != null)
67                 {
68                     fileStream.Close();
69                 }
70             }
71 
72             return true;
73         }
74 
75 
76         /// <summary>
77         /// 獲取請求結果字符串
78         /// </summary>
79         /// <param name="request">請求對象（發起請求以後）</param>
80         /// <param name="cookieContainer">隨同HTTP請求發送的Cookie信息，若是不須要身份驗證能夠爲空</param>
81         /// <returns>返回請求結果字符串</returns>
82         private static string GetResponseResult(HttpWebRequest request, CookieContainer cookieContainer = null)
83         {
84             using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
85             {
86                 if (cookieContainer != null)
87                 {
88                     response.Cookies = cookieContainer.GetCookies(response.ResponseUri);
89                 }
90                 using (Stream rspStream = response.GetResponseStream())
91                 {
92                     using (StreamReader reader = new StreamReader(rspStream, Encoding.UTF8))
93                     {
94                         return reader.ReadToEnd();
95                     }
96                 }
97             }
98         }

View Code

OAuth頭部

 1 //構造OAuth頭部 
 2 StringBuilder oauthHeader = new StringBuilder(); 
 3 oauthHeader.AppendFormat("OAuth realm=\"\", oauth_consumer_key={0}, ", apiKey); 
 4 oauthHeader.AppendFormat("oauth_nonce={0}, ", nonce); 
 5 oauthHeader.AppendFormat("oauth_timestamp={0}, ", timeStamp); 
 6 oauthHeader.AppendFormat("oauth_signature_method={0}, ", "HMAC-SHA1"); 
 7 oauthHeader.AppendFormat("oauth_version={0}, ", "1.0"); 
 8 oauthHeader.AppendFormat("oauth_signature={0}, ", sig); 
 9 oauthHeader.AppendFormat("oauth_token={0}", accessToken); 
10 
11 //構造請求 
12 StringBuilder requestBody = new StringBuilder(""); 
13 Encoding encoding = Encoding.GetEncoding("utf-8"); 
14 byte[] data = encoding.GetBytes(requestBody.ToString()); 
15 
16 // Http Request的設置 
17 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri); 
18 request.Headers.Set("Authorization", oauthHeader.ToString());
19 //request.Headers.Add("Authorization", authorization); 
20 request.ContentType = "application/atom+xml"; 
21 request.Method = "GET";

View Code

http://www.javashuo.com/article/p-vzdmbjve-dp.html

  1 1.POST方法(httpWebRequest)
  2 
  3  
  4 
  5 
  6 
  7 //body是要傳遞的參數,格式"roleId=1&uid=2"
  8 //post的cotentType填寫:"application/x-www-form-urlencoded"
  9 //soap填寫:"text/xml; charset=utf-8"
 10     public static string PostHttp(string url, string body, string contentType)
 11     {
 12         HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
 13 
 14         httpWebRequest.ContentType = contentType;
 15         httpWebRequest.Method = "POST";
 16         httpWebRequest.Timeout = 20000;
 17 
 18         byte[] btBodys = Encoding.UTF8.GetBytes(body);
 19         httpWebRequest.ContentLength = btBodys.Length;
 20         httpWebRequest.GetRequestStream().Write(btBodys, 0, btBodys.Length);
 21 
 22         HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
 23         StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream());
 24         string responseContent = streamReader.ReadToEnd();
 25 
 26         httpWebResponse.Close();
 27         streamReader.Close();
 28         httpWebRequest.Abort();
 29         httpWebResponse.Close();
 30 
 31         return responseContent;
 32     }
 33 
 34 POST方法(httpWebRequest)
 35 
 36 
 37 2.POST方法(WebClient)
 38 
 39 
 40 
 41 /// <summary>
 42         /// 經過WebClient類Post數據到遠程地址，須要Basic認證；
 43         /// 調用端本身處理異常
 44         /// </summary>
 45         /// <param name="uri"></param>
 46         /// <param name="paramStr">name=張三&age=20</param>
 47         /// <param name="encoding">請先確認目標網頁的編碼方式</param>
 48         /// <param name="username"></param>
 49         /// <param name="password"></param>
 50         /// <returns></returns>
 51         public static string Request_WebClient(string uri, string paramStr, Encoding encoding, string username, string password)
 52         {
 53             if (encoding == null)
 54                 encoding = Encoding.UTF8;
 55 
 56             string result = string.Empty;
 57 
 58             WebClient wc = new WebClient();
 59 
 60             // 採起POST方式必須加的Header
 61             wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
 62 
 63             byte[] postData = encoding.GetBytes(paramStr);
 64 
 65             if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
 66             {
 67                 wc.Credentials = GetCredentialCache(uri, username, password);
 68                 wc.Headers.Add("Authorization", GetAuthorization(username, password));
 69             }
 70 
 71             byte[] responseData = wc.UploadData(uri, "POST", postData); // 獲得返回字符流
 72             return encoding.GetString(responseData);// 解碼                  
 73         }
 74 
 75 POST方法(WebClient)
 76 
 77 3.Get方法(httpWebRequest)
 78 
 79 
 80 
 81 public static string GetHttp(string url, HttpContext httpContext)
 82     {
 83         string queryString = "?";
 84 
 85         foreach (string key in httpContext.Request.QueryString.AllKeys)
 86         {
 87             queryString += key + "=" + httpContext.Request.QueryString[key] + "&";
 88         }
 89 
 90         queryString = queryString.Substring(0, queryString.Length - 1);
 91 
 92         HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url + queryString);
 93 
 94         httpWebRequest.ContentType = "application/json";
 95         httpWebRequest.Method = "GET";
 96         httpWebRequest.Timeout = 20000;
 97 
 98         //byte[] btBodys = Encoding.UTF8.GetBytes(body);
 99         //httpWebRequest.ContentLength = btBodys.Length;
100         //httpWebRequest.GetRequestStream().Write(btBodys, 0, btBodys.Length);
101 
102         HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
103         StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream());
104         string responseContent = streamReader.ReadToEnd();
105 
106         httpWebResponse.Close();
107         streamReader.Close();
108 
109         return responseContent;
110     }
111 
112 Get方法(HttpWebRequest)
113 
114 4.basic驗證的WebRequest/WebResponse
115 
116 
117 
118 /// <summary>
119         /// 經過 WebRequest/WebResponse 類訪問遠程地址並返回結果，須要Basic認證；
120         /// 調用端本身處理異常
121         /// </summary>
122         /// <param name="uri"></param>
123         /// <param name="timeout">訪問超時時間，單位毫秒；若是不設置超時時間，傳入0</param>
124         /// <param name="encoding">若是不知道具體的編碼，傳入null</param>
125         /// <param name="username"></param>
126         /// <param name="password"></param>
127         /// <returns></returns>
128         public static string Request_WebRequest(string uri, int timeout, Encoding encoding, string username, string password)
129         {
130             string result = string.Empty;
131 
132             WebRequest request = WebRequest.Create(new Uri(uri));
133 
134             if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
135             {
136                 request.Credentials = GetCredentialCache(uri, username, password);
137                 request.Headers.Add("Authorization", GetAuthorization(username, password));
138             }
139 
140             if (timeout > 0)
141                 request.Timeout = timeout;
142 
143             WebResponse response = request.GetResponse();
144             Stream stream = response.GetResponseStream();
145             StreamReader sr = encoding == null ? new StreamReader(stream) : new StreamReader(stream, encoding);
146 
147             result = sr.ReadToEnd();
148 
149             sr.Close();
150             stream.Close();
151 
152             return result;
153         }
154 
155         #region # 生成 Http Basic 訪問憑證 #
156 
157         private static CredentialCache GetCredentialCache(string uri, string username, string password)
158         {
159             string authorization = string.Format("{0}:{1}", username, password);
160 
161             CredentialCache credCache = new CredentialCache();
162             credCache.Add(new Uri(uri), "Basic", new NetworkCredential(username, password));
163 
164             return credCache;
165         }
166 
167         private static string GetAuthorization(string username, string password)
168         {
169             string authorization = string.Format("{0}:{1}", username, password);
170 
171             return "Basic " + Convert.ToBase64String(new ASCIIEncoding().GetBytes(authorization));
172         }
173 
174         #endregion
175 
176 basic驗證的WebRequest/WebResponse
177 
178  
179 
180 C#語言寫的關於HttpWebRequest 類的使用方法
181 
182 http://www.jb51.net/article/57156.htm
183 
184 
185 
186 using System;
187 
188 using System.Collections.Generic;
189 
190 using System.IO;
191 
192 using System.Net;
193 
194 using System.Text;
195 
196 namespace HttpWeb
197 
198 {
199 
200     /// <summary> 
201 
202     ///  Http操做類 
203 
204     /// </summary> 
205 
206     public static class httptest
207 
208     {
209 
210         /// <summary> 
211 
212         ///  獲取網址HTML 
213 
214         /// </summary> 
215 
216         /// <param name="URL">網址 </param> 
217 
218         /// <returns> </returns> 
219 
220         public static string GetHtml(string URL)
221 
222         {
223 
224             WebRequest wrt;
225 
226             wrt = WebRequest.Create(URL);
227 
228             wrt.Credentials = CredentialCache.DefaultCredentials;
229 
230             WebResponse wrp;
231 
232             wrp = wrt.GetResponse();
233 
234             string reader = new StreamReader(wrp.GetResponseStream(), Encoding.GetEncoding("gb2312")).ReadToEnd();
235 
236             try
237 
238             {
239 
240                 wrt.GetResponse().Close();
241 
242             }
243 
244             catch (WebException ex)
245 
246             {
247 
248                 throw ex;
249 
250             }
251 
252             return reader;
253 
254         }
255 
256         /// <summary> 
257 
258         /// 獲取網站cookie 
259 
260         /// </summary> 
261 
262         /// <param name="URL">網址 </param> 
263 
264         /// <param name="cookie">cookie </param> 
265 
266         /// <returns> </returns> 
267 
268         public static string GetHtml(string URL, out string cookie)
269 
270         {
271 
272             WebRequest wrt;
273 
274             wrt = WebRequest.Create(URL);
275 
276             wrt.Credentials = CredentialCache.DefaultCredentials;
277 
278             WebResponse wrp;
279 
280             wrp = wrt.GetResponse();
281             string html = new StreamReader(wrp.GetResponseStream(), Encoding.GetEncoding("gb2312")).ReadToEnd();
282 
283             try
284 
285             {
286 
287                 wrt.GetResponse().Close();
288 
289             }
290 
291             catch (WebException ex)
292 
293             {
294 
295                 throw ex;
296 
297             }
298 
299             cookie = wrp.Headers.Get("Set-Cookie");
300 
301             return html;
302 
303         }
304 
305         public static string GetHtml(string URL, string postData, string cookie, out string header, string server)
306 
307         {
308 
309             return GetHtml(server, URL, postData, cookie, out header);
310 
311         }
312 
313         public static string GetHtml(string server, string URL, string postData, string cookie, out string header)
314 
315         {
316 
317             byte[] byteRequest = Encoding.GetEncoding("gb2312").GetBytes(postData);
318 
319             return GetHtml(server, URL, byteRequest, cookie, out header);
320 
321         }
322 
323         public static string GetHtml(string server, string URL, byte[] byteRequest, string cookie, out string header)
324 
325         {
326 
327             byte[] bytes = GetHtmlByBytes(server, URL, byteRequest, cookie, out header);
328 
329             Stream getStream = new MemoryStream(bytes);
330 
331             StreamReader streamReader = new StreamReader(getStream, Encoding.GetEncoding("gb2312"));
332 
333             string getString = streamReader.ReadToEnd();
334 
335             streamReader.Close();
336 
337             getStream.Close();
338 
339             return getString;
340 
341         }
342 
343         /// <summary> 
344 
345         /// Post模式瀏覽 
346 
347         /// </summary> 
348 
349         /// <param name="server">服務器地址 </param> 
350 
351         /// <param name="URL">網址 </param> 
352 
353         /// <param name="byteRequest">流 </param> 
354 
355         /// <param name="cookie">cookie </param> 
356 
357         /// <param name="header">句柄 </param> 
358 
359         /// <returns> </returns> 
360 
361         public static byte[] GetHtmlByBytes(string server, string URL, byte[] byteRequest, string cookie, out string header)
362 
363         {
364 
365             long contentLength;
366 
367             HttpWebRequest httpWebRequest;
368 
369             HttpWebResponse webResponse;
370 
371             Stream getStream;
372 
373             httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(URL);
374 
375             CookieContainer co = new CookieContainer();
376 
377             co.SetCookies(new Uri(server), cookie);
378 
379             httpWebRequest.CookieContainer = co;
380 
381             httpWebRequest.ContentType = "application/x-www-form-urlencoded";
382 
383             httpWebRequest.Accept =
384 
385                 "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*";
386 
387             httpWebRequest.Referer = server;
388 
389             httpWebRequest.UserAgent =
390 
391                 "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322)";
392 
393             httpWebRequest.Method = "Post";
394 
395             httpWebRequest.ContentLength = byteRequest.Length;
396 
397             Stream stream;
398 
399             stream = httpWebRequest.GetRequestStream();
400 
401             stream.Write(byteRequest, 0, byteRequest.Length);
402 
403             stream.Close();
404 
405             webResponse = (HttpWebResponse)httpWebRequest.GetResponse();
406 
407             header = webResponse.Headers.ToString();
408 
409             getStream = webResponse.GetResponseStream();
410 
411             contentLength = webResponse.ContentLength;
412 
413             byte[] outBytes = new byte[contentLength];
414 
415             outBytes = ReadFully(getStream);
416 
417             getStream.Close();
418 
419             return outBytes;
420 
421         }
422 
423         public static byte[] ReadFully(Stream stream)
424 
425         {
426 
427             byte[] buffer = new byte[128];
428 
429             using (MemoryStream ms = new MemoryStream())
430 
431             {
432 
433                 while (true)
434 
435                 {
436 
437                     int read = stream.Read(buffer, 0, buffer.Length);
438 
439                     if (read <= 0)
440 
441                         return ms.ToArray();
442 
443                     ms.Write(buffer, 0, read);
444 
445                 }
446 
447             }
448 
449         }
450 
451         /// <summary> 
452 
453         /// Get模式 
454 
455         /// </summary> 
456 
457         /// <param name="URL">網址 </param> 
458 
459         /// <param name="cookie">cookies </param> 
460 
461         /// <param name="header">句柄 </param> 
462 
463         /// <param name="server">服務器 </param> 
464 
465         /// <param name="val">服務器 </param> 
466 
467         /// <returns> </returns> 
468 
469         public static string GetHtml(string URL, string cookie, out string header, string server)
470 
471         {
472 
473             return GetHtml(URL, cookie, out header, server, "");
474 
475         }
476 
477         /// <summary> 
478 
479         /// Get模式瀏覽 
480 
481         /// </summary> 
482 
483         /// <param name="URL">Get網址 </param> 
484 
485         /// <param name="cookie">cookie </param> 
486 
487         /// <param name="header">句柄 </param> 
488 
489         /// <param name="server">服務器地址 </param> 
490 
491         /// <param name="val"> </param> 
492 
493         /// <returns> </returns> 
494 
495         public static string GetHtml(string URL, string cookie, out string header, string server, string val)
496 
497         {
498 
499             HttpWebRequest httpWebRequest;
500 
501             HttpWebResponse webResponse;
502 
503             Stream getStream;
504 
505             StreamReader streamReader;
506 
507             string getString = "";
508 
509             httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(URL);
510 
511             httpWebRequest.Accept = "*/*";
512 
513             httpWebRequest.Referer = server;
514 
515             CookieContainer co = new CookieContainer();
516 
517             co.SetCookies(new Uri(server), cookie);
518 
519             httpWebRequest.CookieContainer = co;
520 
521             httpWebRequest.UserAgent =
522 
523                 "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322)";
524 
525             httpWebRequest.Method = "GET";
526 
527             webResponse = (HttpWebResponse)httpWebRequest.GetResponse();
528 
529             header = webResponse.Headers.ToString();
530 
531             getStream = webResponse.GetResponseStream();
532 
533             streamReader = new StreamReader(getStream, Encoding.GetEncoding("gb2312"));
534 
535             getString = streamReader.ReadToEnd();
536 
537             streamReader.Close();
538 
539             getStream.Close();
540 
541             return getString;
542 
543         }
544 
545    }
546 
547 }
548 
549  有空查看：
550 
551 
552 
553     /// <summary>
554     /// 做用描述： WebRequest操做類
555     /// </summary>
556     public static class CallWebRequest
557     {
558         /// <summary>
559         /// 經過GET請求獲取數據
560         /// </summary>
561         /// <param name="url"></param>
562         /// <returns></returns>
563         public static string Get(string url)
564         {
565             HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
566             //每次請求繞過代理，解決第一次調用慢的問題
567             request.Proxy = null;
568             //多線程併發調用時默認2個http鏈接數限制的問題，講其設爲1000
569             ServicePoint currentServicePoint = request.ServicePoint;
570             currentServicePoint.ConnectionLimit = 1000;
571             HttpWebResponse response = request.GetResponse() as HttpWebResponse;
572             string str;
573             using (Stream responseStream = response.GetResponseStream())
574             {
575                 Encoding encode = Encoding.GetEncoding("utf-8");
576                 StreamReader reader = new StreamReader(responseStream, encode);
577                 str = reader.ReadToEnd();          
578             }
579             response.Close();
580             response = null;
581             request.Abort();
582             request = null;
583             return str;
584         }
585 
586         /// <summary>
587         /// 經過POST請求傳遞數據
588         /// </summary>
589         /// <param name="url"></param>
590         /// <param name="postData"></param>
591         /// <returns></returns>
592         public static string Post(string url, string postData)
593         {
594             HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
595 
596             //將發送數據轉換爲二進制格式
597             byte[] byteArray = Encoding.UTF8.GetBytes(postData);
598             //要POST的數據大於1024字節的時候, 瀏覽器並不會直接就發起POST請求, 而是會分爲倆步：
599             //1. 發送一個請求, 包含一個Expect:100-continue, 詢問Server使用願意接受數據
600             //2. 接收到Server返回的100-continue應答之後, 才把數據POST給Server
601             //直接關閉第一步驗證
602             request.ServicePoint.Expect100Continue = false;
603             //是否使用Nagle：不使用，提升效率 
604             request.ServicePoint.UseNagleAlgorithm = false;
605             //設置最大鏈接數
606             request.ServicePoint.ConnectionLimit = 65500;
607             //指定壓縮方法
608             //request.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip,deflate");
609             request.KeepAlive = false;
610             //request.ContentType = "application/json";
611             request.ContentType = "application/x-www-form-urlencoded";
612             
613             request.Method = "POST";
614             request.Timeout = 20000;
615             request.ContentLength = byteArray.Length;
616             //關閉緩存
617             request.AllowWriteStreamBuffering = false;
618 
619             //每次請求繞過代理，解決第一次調用慢的問題
620             request.Proxy = null;
621             //多線程併發調用時默認2個http鏈接數限制的問題，講其設爲1000
622             ServicePoint currentServicePoint = request.ServicePoint;
623 
624             Stream dataStream = request.GetRequestStream();
625             dataStream.Write(byteArray, 0, byteArray.Length);
626             dataStream.Close();
627 
628             WebResponse response = request.GetResponse();
629             //獲取服務器返回的數據流
630             dataStream = response.GetResponseStream();
631             StreamReader reader = new StreamReader(dataStream);
632             string responseFromServer = reader.ReadToEnd();
633             reader.Close();
634             dataStream.Close();
635             request.Abort();
636             response.Close();
637             reader.Dispose();
638             dataStream.Dispose();
639             return responseFromServer;
640         }
641     }
642 
643  
644 
645 
646 
647     /// <summary>
648     /// 用於外部接口調用封裝
649     /// </summary>
650     public static class ApiInterface
651     {
652 
653         /// <summary>
654         ///驗證密碼是否正確
655         /// </summary>
656         public static Api_ToConfig<object> checkPwd(int userId, string old)
657         {
658             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/checkPwd";
659             var data = Json.ToObject<Api_ToConfig<object>>(CallWebRequest.Post(url + "?id=" + userId, "&oldPwd=" + old));
660             //var data = Json.ToObject<Api_ToConfig<object>>(CallWebRequest.Post(url, "{\"id\":" + userId + ",oldPwd:\"" + old + "\",newPwd:\"" + pwd + "\"}"));
661             return data;
662         }
663 
664         /// <summary>
665         ///
666         /// </summary>
667         public static Api_ToConfig<object> UpdatePassword(int userId, string pwd, string old)
668         {
669             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/updatePwd";
670             var data = Json.ToObject<Api_ToConfig<object>>(CallWebRequest.Post(url + "?id=" + userId + "&oldPwd=" + old, "&newPwd=" + pwd));
671             //var data = Json.ToObject<Api_ToConfig<object>>(CallWebRequest.Post(url, "{\"id\":" + userId + ",oldPwd:\"" + old + "\",newPwd:\"" + pwd + "\"}"));
672             return data;
673         }
674 
675 
676 
677 
678         private static DateTime GetTime(string timeStamp)
679         {
680             DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
681             long lTime = long.Parse(timeStamp + "0000");
682             TimeSpan toNow = new TimeSpan(lTime); return dtStart.Add(toNow);
683         }
684 
685 
686         #region 公共方法
687 
688         /// <summary>
689         /// 配置文件key
690         /// </summary>
691         /// <param name="key"></param>
692         /// <param name="isOutKey"></param>
693         /// <returns></returns>
694         public static string GetConfig(string key, bool isOutKey = false)
695         {
696             //  CacheRedis.Cache.RemoveObject(RedisKey.ConfigList);
697             var data = CacheRedis.Cache.Get<Api_BaseToConfig<Api_Config>>(RedisKey.ConfigList);
698 
699             //  var data = new Api_BaseToConfig<Api_Config>();
700             if (data == null)
701             {
702                 string dataCenterUrl = WebConfigManager.GetAppSettings("DataCenterUrl");
703                 string configurationInfoListByFilter = WebConfigManager.GetAppSettings("ConfigurationInfoListByFilter");
704 
705                 string systemCoding = WebConfigManager.GetAppSettings("SystemCoding");
706                 string nodeIdentifier = WebConfigManager.GetAppSettings("NodeIdentifier");
707                 string para = "systemIdf=" + systemCoding + "&nodeIdf=" + nodeIdentifier + "";
708                 //string para = "{\"systemIdf\":\"" + systemCoding + "\",\"nodeIdf\":\"" + nodeIdentifier + "\"}";
709 
710                 string result = CallWebRequest.Post(dataCenterUrl + "/rest" + configurationInfoListByFilter, para);
711                 data =
712                     Json.ToObject<Api_BaseToConfig<Api_Config>>(result);
713                 CacheRedis.Cache.Set(RedisKey.ConfigList, data);
714             }
715             if (data.Status)
716             {
717                 if (isOutKey && ConfigServer.IsOutside())
718                 {
719                     key += "_outside";
720                 }
721                 key = key.ToLower();
722                 var firstOrDefault = data.Data.FirstOrDefault(e => e.Identifier.ToLower() == key);
723                 if (firstOrDefault != null)
724                 {
725                     return firstOrDefault.Value;
726                 }
727                 else
728                 {
729                     if (key.IndexOf("_outside") > -1)
730                     {
731                         firstOrDefault = data.Data.FirstOrDefault(e => e.Identifier == key.Substring(0, key.LastIndexOf("_outside")));
732                         if (firstOrDefault != null)
733                             return firstOrDefault.Value;
734                     }
735                 }
736             }
737             return "";
738         }
739 
740         public static string WebPostRequest(string url, string postData)
741         {
742             return CallWebRequest.Post(url, postData);
743         }
744         public static string WebGetRequest(string url)
745         {
746             return CallWebRequest.Get(url);
747         }
748 
749         #endregion
750 
751 
752         #region 參數轉換方法
753         private static string ConvertClassIds(string classIds)
754         {
755             var list = classIds.Split(',');
756             StringBuilder sb = new StringBuilder("{\"class_id_list\": [");
757             foreach (var s in list)
758             {
759                 sb.Append("{\"classId\": \"" + s + "\"},");
760             }
761             if (list.Any())
762                 sb.Remove(sb.Length - 1, 1);
763 
764             sb.Append("]}");
765 
766             return sb.ToString();
767         }
768 
769         private static string ConvertLabIds(string labIds)
770         {
771             var list = labIds.Split(',');
772             StringBuilder sb = new StringBuilder("{\"lab_id_list\": [");
773             foreach (var s in list)
774             {
775                 sb.Append("{\"labId\": \"" + s + "\"},");
776             }
777             if (list.Any())
778                 sb.Remove(sb.Length - 1, 1);
779 
780             sb.Append("]}");
781 
782             return sb.ToString();
783         }
784 
785         private static string ConvertCardNos(string cardNos)
786         {
787             var list = cardNos.Split(',');
788             StringBuilder sb = new StringBuilder("{\"student_cardNos_list\": [");
789             foreach (var s in list)
790             {
791                 sb.Append("{\"stuCardNo\": \"" + s + "\"},");
792             }
793             if (list.Any())
794                 sb.Remove(sb.Length - 1, 1);
795 
796             sb.Append("]}");
797 
798             return sb.ToString();
799         }
800         #endregion
801 
802 
803 
804         /// <summary>
805         /// 設置公文已讀
806         /// </summary>
807         /// <param name="beginTime"></param>
808         /// <param name="endTime"></param>
809         /// <param name="userId"></param>
810         /// <param name="currentPage"></param>
811         /// <param name="pageSize"></param>
812         /// <returns></returns>
813         public static Api_ToConfig<object> FlowService(string id)
814         {
815             var url = WebConfigManager.GetAppSettings("FlowService");
816             var data = Json.ToObject<Api_ToConfig<object>>(CallWebRequest.Post(url + "?Copyid=" + id, ""));
817             return data;
818         }
819 
820 
821         /// <summary>
822         ///獲取OA工做流數據
823         /// </summary>
824         public static string getOAWorkFlowData(string userName, string userId)
825         {
826             var url = GetConfig("platform.application.oa.url") + WebConfigManager.GetAppSettings("OAWorkFlowData");
827             var data = CallWebRequest.Post(url, "&account=" + userName + "&userId=" + userId);
828             return data;
829 
830         }
831 
832         public static List<Api_Course> GetDreamClassCourse(string userId)
833         {
834             List<Api_Course> list = new List<Api_Course>();
835             list = CacheRedis.Cache.Get<List<Api_Course>>(RedisKey.DreamCourse + userId);
836             if (list != null && list.Count > 0)
837                 return list;
838 
839             var url = GetConfig("platform.system.dreamclass.url", true) + "rest/getTeacherCourseInfo";
840             var result = Json.ToObject<ApiResult<Api_Course>>(CallWebRequest.Post(url, "&userId=" + userId));
841             if (result.state)
842                 list = result.data;
843             CacheRedis.Cache.Set(RedisKey.DreamCourse + userId, list, 30);//緩存30分鐘失效
844             return list;
845         }
846 
847         /// <summary>
848         /// 用戶信息
849         /// </summary>
850         /// <param name="userId"></param>
851         /// <returns></returns>
852         public static Api_User GetUserInfoByUserName(string userName)
853         {
854             var model = new Api_User();
855             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/getUserInfoByUserName";
856             var result = Json.ToObject<ApiBase<Api_User>>(CallWebRequest.Post(url, "&userName=" + userName));
857             if (result.status == true && result.data != null)
858                 model = result.data;
859             return model;
860         }
861 
862         public static Api_User GetUserInfoByUserId(string userId)
863         {
864             var model = new Api_User();
865             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/getUserInfoByUserId";
866             var result = Json.ToObject<ApiBase<Api_User>>(CallWebRequest.Get(url + "?userId=" + userId));
867             if (result.status == true && result.data != null)
868                 model = result.data;
869             return model;
870         }
871 
872         public static Api_User GetUserByUserId(string userId)
873         {
874             var model = new Api_User();
875             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/getUserByUserId";
876             var result = Json.ToObject<ApiBase<Api_User>>(CallWebRequest.Get(url + "?userId=" + userId));
877             if (result.status == true && result.data != null)
878                 model = result.data;
879             return model;
880         }
881 
882 
883         public static ApiBase<string> UserExist(string userName)
884         {
885             ApiBase<string> result = new ApiBase<string>();
886             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/checkUserExists";
887             result = Json.ToObject<ApiBase<string>>(CallWebRequest.Post(url, "&userName=" + userName));
888             return result;
889 
890         }
891         public static ApiBase<string> CheckUserPwd(string userName, string pwd)
892         {
893             ApiBase<string> result = new ApiBase<string>();
894             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/checkUserPsw";
895             result = Json.ToObject<ApiBase<string>>(CallWebRequest.Post(url, "&userName=" + userName + "&psw=" + pwd));
896             return result;
897 
898         }
899         public static ApiBase<Api_AnswerQuestion> GetAnswerQuestion(string userName)
900         {
901             ApiBase<Api_AnswerQuestion> result = new ApiBase<Api_AnswerQuestion>();
902             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/safety/getSafetyByUserName";
903             result = Json.ToObject<ApiBase<Api_AnswerQuestion>>(CallWebRequest.Post(url, "&userName=" + userName));
904             return result;
905         }
906 
907         public static ApiBase<string> ResetUserPassword(string userName, string newPassWord)
908         {
909             ApiBase<string> result = new ApiBase<string>();
910             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/resetUserPasswordByUserName";
911             result = Json.ToObject<ApiBase<string>>(CallWebRequest.Post(url, "&userName=" + userName + "&newPassWord=" + newPassWord));
912             return result;
913         }
914         public static ApiBase<string> ChangeUserSafeAnswer(string userId, string answer1, string answer2, string answer3, string safeId)
915         {
916             ApiBase<string> result = new ApiBase<string>();
917             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/safety/batchUpdageSafety";
918             result = Json.ToObject<ApiBase<string>>(CallWebRequest.Post(url, "&data=[{editor:\"" + userId + "\",safetyAnswerOne:\"" + answer1 + "\",safetyAnswerTwo:\"" + answer2 + "\",safetyAnswerThree:\"" + answer3 + "\",safetyId:" + safeId + "}]"));
919             return result;
920         }
921 
922         public static ApiBase<string> UpdateUserPhoto(string userId, string userPhoto)
923         {
924             ApiBase<string> result = new ApiBase<string>();
925             var url = WebConfigManager.GetAppSettings("DataCenterUrl") + "/rest/user/updataUserInfo";
926             result = Json.ToObject<ApiBase<string>>(CallWebRequest.Post(url, "&data=[{userId:\"" + userId + "\",userPhoto:\"" + userPhoto + "\"}]"));
927             return result;
928         }
929 
930         public static Api_DreamClassUserInfo GetDreamClassUser(string userId)
931         {
932             var model = new Api_DreamClassUserInfo();
933             //model = CacheRedis.Cache.Get<Api_DreamClassUserInfo>(RedisKey.DreamCourseUser + userId);
934             var url = GetConfig("platform.system.dreamclass.url", true) + "rest/getUserInfo";
935             var result = Json.ToObject<ApiBase<Api_DreamClassUserInfo>>(CallWebRequest.Post(url, "&userId=" + userId));
936             if (result.state == true && result.data != null)
937             {
938                 model = result.data;
939                 //CacheRedis.Cache.Set(RedisKey.DreamCourseUser+userId,model);
940             }
941 
942             return model;
943         }
944 
945         public static List<Api_BitCourse> GetBitCourseList(string userName)
946         {
947             List<Api_BitCourse> list = new List<Api_BitCourse>();
948             list = CacheRedis.Cache.Get<List<Api_BitCourse>>(RedisKey.BitCourse + userName);
949             if (list != null && list.Count > 0)
950                 return list;
951             try
952             {
953                 var url = GetConfig("platform.system.szhjxpt.url", true) + "/Services/DtpServiceWJL.asmx/GetMyCourseByLoginName";
954                 var result = Json.ToObject<ApiConfig<Api_BitCourse>>(CallWebRequest.Post(url, "&loginName=" + userName));
955 
956                 if (result.success)
957                     list = result.datas;
958                 CacheRedis.Cache.Set(RedisKey.BitCourse + userName, list, 30);//緩存30分鐘失效
959             }
960             catch (Exception exception)
961             {
962                 list = new List<Api_BitCourse>();
963                 Log.Error(exception.Message);
964             }
965 
966             return list;
967         }
968     }

View Code

一個簡單的例子　　

1  string __url = "http://localhost:4090/API/Referal/Visit"; 
2 string param = "{ \"Year\": 2019,\"Month\": 4,\"Operator\":\"sys_overseas\"}";
3 WebRequestHelper.OnPOST<JsonData<RRData>>(__url, param);

View Code

 1     class WebRequestHelper
 2     {
 3         /// <summary>
 4         /// 
 5         /// </summary>
 6         /// <param name="url"></param>
 7         /// <param name="param"></param>
 8         /// <returns></returns>
 9         public static string OnPOST(string url, string param = null)
10         {
11             var req = WebRequest.Create(url) as HttpWebRequest;
12             req.Method = "POST";
13             req.ContentType = "application/json";
14             
15             using (StreamWriter reWriter = new StreamWriter(req.GetRequestStream()))
16             {
17                 reWriter.Write(param);
18                 reWriter.Close();
19             }
20             var res = req.GetResponse();
21 
22             using (var reader = new StreamReader(res.GetResponseStream()))
23             {
24                 string _json = reader.ReadToEnd();
25 
26                 return _json;
27             }
28 
29         }
30 
31         public static T OnPOST<T>(string url, string param = null) where T : new()
32         {
33             //var req = WebRequest.Create(url) as HttpWebRequest;
34             //using (var reqWrite=new StreamWriter(req.GetRequestStream()))
35             //{
36             //    reqWrite.Write(param);
37             //    reqWrite.Close();
38             //}
39 
40             //var res = req.GetResponse();
41             //using (var reader=new StreamReader(res.GetResponseStream()))
42             //{
43             //    string _json= reader.ReadToEnd();
44             string _json = OnPOST(url, param);
45            return   JsonConvert.DeserializeObject<T>(_json);
46             //}
47         }
48 
49 
50     }

View Code

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