C# WebRequest
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HttpWebRequest和HttpWebResponse类是用于发送和接收HTTP数据的最好选择。它们支持一系列有用的属性。这两个类位 于System.Net命名空间，默认情况下这个类对于控制台程序来说是可访问的。请注意，HttpWebRequest对象不是利用new关键字通过构 造函数来创建的，而是利用工厂机制（factory mechanism）通过Create()方法来创建的。另外，你可能预计需要显式地调用一个“Send”方法，实际上不需要。接下来调用 HttpWebRequest.GetResponse()方法返回的是一个HttpWebResponse对象。你可以把HTTP响应的数据流 （stream）绑定到一个StreamReader对象，然后就可以通过ReadToEnd()方法把整个HTTP响应作为一个字符串取回。也可以通过 StreamReader.ReadLine()方法逐行取回HTTP响应的内容。
这种技术展示了如何限制请求重定向（request redirections）的次数， 并且设置了一个超时限制。下面是HttpWebRequest的一些属性，这些属性对于轻量级的自动化测试程序是非常重要的。
l AllowAutoRedirect：获取或设置一个值，该值指示请求是否应跟随重定向响应。
l CookieContainer：获取或设置与此请求关联的cookie。
l Credentials：获取或设置请求的身份验证信息。
l KeepAlive：获取或设置一个值，该值指示是否与 Internet 资源建立持久性连接。
l MaximumAutomaticRedirections：获取或设置请求将跟随的重定向的最大数目。
l Proxy：获取或设置请求的代理信息。
l SendChunked：获取或设置一个值，该值指示是否将数据分段发送到 Internet 资源。
l Timeout：获取或设置请求的超时值。
l UserAgent：获取或设置 User-agent HTTP 标头的值
C# HttpWebRequest提交数据方式其实就是GET和POST两种，那么具体的实现以及操作注意事项是什么呢？那么本文就向你详细介绍C# HttpWebRequest提交数据方式的这两种利器。
C# HttpWebRequest提交数据方式学习之前我们先来看看什么是HttpWebRequest，它是 .net 基类库中的一个类，在命名空间 System.Net 下面，用来使用户通过HTTP协议和服务器交互。
C# HttpWebRequest的作用：
HttpWebRequest对HTTP协议进行了完整的封装，对HTTP协议中的 Header, Content, Cookie 都做了属性和方法的支持，很容易就能编写出一个模拟浏览器自动登录的程序。
C# HttpWebRequest提交数据方式：
程序使用HTTP协议和服务器交互主要是进行数据的提交，通常数据的提交是通过 GET 和 POST 两种方式来完成，下面对这两种方式进行一下说明：
C# HttpWebRequest提交数据方式1. GET 方式。
GET 方式通过在网络地址附加参数来完成数据的提交，比如在地址 http://www.google.com/webhp?hl=zh-CN 中，前面部分 http://www.google.com/webhp 表示数据提交的网址，后面部分 hl=zh-CN 表示附加的参数，其中 hl 表示一个键(key)， zh-CN 表示这个键对应的值(value)。程序代码如下：
HttpWebRequest req =
(HttpWebRequest) HttpWebRequest.Create(
"http://www.google.com/webhp?hl=zh-CN" );
req.Method = "GET";
using (WebResponse wr = req.GetResponse())
//在这里对接收到的页面内容进行处理
C# HttpWebRequest提交数据方式2. POST 方式。
POST 方式通过在页面内容中填写参数的方法来完成数据的提交，参数的格式和 GET 方式一样，是类似于 hl=zh-CN&newwindow=1 这样的结构。程序代码如下：
string param = "hl=zh-CN&newwindow=1"; //参数
byte[] bs = Encoding.ASCII.GetBytes(param); //参数转化为ascii码
HttpWebRequest req = (HttpWebRequest) HttpWebRequest.Create( "http://www.google.com/intl/zh-CN/" ); //创建request
req.Method = "POST"; //确定传值的方式，此处为post方式传值
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())
//在这里对接收到的页面内容进行处理
在上面的代码中，我们访问了 www.google.com 的网址，分别以 GET 和 POST 方式提交了数据，并接收了返回的页面内容。然而，如果提交的参数中含有中文，那么这样的处理是不够的，需要对其进行编码，让对方网站能够识别。
C# HttpWebRequest提交数据方式3. 使用 GET 方式提交中文数据。
GET 方式通过在网络地址中附加参数来完成数据提交，对于中文的编码，常用的有 gb2312 和 utf8 两种，用 gb2312 方式编码访问的程序代码如下：
Encoding myEncoding = Encoding.GetEncoding("gb2312"); //确定用哪种中文编码方式
string address = "http://www.baidu.com/s?" + HttpUtility.UrlEncode("参数一", myEncoding) + "=" + HttpUtility.UrlEncode("值一", myEncoding); //拼接数据提交的网址和经过中文编码后的中文参数
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(address); //创建request
req.Method = "GET"; //确定传值方式，此处为get方式
using (WebResponse wr = req.GetResponse())
//在这里对接收到的页面内容进行处理
在上面的程序代码中，我们以 GET 方式访问了网址 http://www.baidu.com/s ，传递了参数“参数一=值一”，由于无法告知对方提交数据的编码类型，所以编码方式要以对方的网站为标准。常见的网站中， www.baidu.com （百度）的编码方式是 gb2312, www.google.com （谷歌）的编码方式是 utf8。
C# HttpWebRequest提交数据方式4. 使用 POST 方式提交中文数据。
POST 方式通过在页面内容中填写参数的方法来完成数据的提交，由于提交的参数中可以说明使用的编码方式，所以理论上能获得更大的兼容性。用 gb2312 方式编码访问的程序代码如下：
Encoding myEncoding = Encoding.GetEncoding("gb2312"); //确定中文编码方式。此处用gb2312
string param = HttpUtility.UrlEncode("参数一", myEncoding) + "=" + HttpUtility.UrlEncode("值一", myEncoding) + "&" + HttpUtility.UrlEncode("参数二", myEncoding) + "=" + HttpUtility.UrlEncode("值二", myEncoding);
byte[] postBytes = Encoding.ASCII.GetBytes(param); //将参数转化为assic码
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())
//在这里对接收到的页面内容进行处理
从上面的代码可以看出， POST 中文数据的时候，先使用 UrlEncode 方法将中文字符转换为编码后的 ASCII 码，然后提交到服务器，提交的时候可以说明编码的方式，用来使对方服务器能够正确的解析。
以上列出了客户端程序使用HTTP协议与服务器交互的情况，常用的是 GET 和 POST 方式。现在流行的 WebService 也是通过 HTTP 协议来交互的，使用的是 POST 方法。与以上稍有所不同的是， WebService 提交的数据内容和接收到的数据内容都是使用了 XML 方式编码。所以， HttpWebRequest 也可以使用在调用 WebService 的情况下。
1 #region 公共方法 2 /// <summary> 3 /// Get数据接口 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 //在这里对接收到的页面内容进行处理 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数据接口 28 /// </summary> 29 /// <param name="postUrl">接口地址</param> 30 /// <param name="paramData">提交json数据</param> 31 /// <param name="dataEncode">编码方式(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); //转化 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);//写入参数 46 //reqStream.Close(); 47 48 using (HttpWebResponse response = (HttpWebResponse)webReq.GetResponse()) 49 50 //在这里对接收到的页面内容进行处理 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
post支持cookie
1 /// <summary> 2 /// 发起Post请求（采用HttpWebRequest，支持传Cookie） 3 /// </summary> 4 /// <param name="strUrl">请求Url</param> 5 /// <param name="formData">发送的表单数据</param> 6 /// <param name="strResult">返回请求结果（如果请求失败，返回异常消息）</param> 7 /// <param name="cookieContainer">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> 8 /// <returns>返回：是否请求成功</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
post上传文件
1 /// <summary> 2 /// 发起Post文件请求（采用HttpWebRequest，支持传Cookie） 3 /// </summary> 4 /// <param name="strUrl">请求Url</param> 5 /// <param name="strFilePostName">上传文件的PostName</param> 6 /// <param name="strFilePath">上传文件路径</param> 7 /// <param name="cookieContainer">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> 8 /// <param name="strResult">返回请求结果（如果请求失败，返回异常消息）</param> 9 /// <returns>返回：是否请求成功</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 // 写入分割线及数据信息 44 reqStream.Write(header, 0, header.Length); 45 46 // 写入文件 47 FileHelper.WriteFile(reqStream, fileStream); 48 49 // 写入尾部 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 /// 获取请求结果字符串 78 /// </summary> 79 /// <param name="request">请求对象（发起请求之后）</param> 80 /// <param name="cookieContainer">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> 81 /// <returns>返回请求结果字符串</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
OAuth头部
1 //构造OAuth头部 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 //构造请求 12 StringBuilder requestBody = new StringBuilder(""); 13 Encoding encoding = Encoding.GetEncoding("utf-8"); 14 byte[] data = encoding.GetBytes(requestBody.ToString()); 15 16 // Http Request的设置 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";
https://www.cnblogs.com/shadowtale/p/3372735.html
1 1.POST方法(httpWebRequest) 2 3 4 5 6 7 //body是要传递的参数,格式"roleId=1&uid=2" 8 //post的cotentType填写:"application/x-www-form-urlencoded" 9 //soap填写:"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 /// 通过WebClient类Post数据到远程地址，需要Basic认证； 43 /// 调用端自己处理异常 44 /// </summary> 45 /// <param name="uri"></param> 46 /// <param name="paramStr">name=张三&age=20</param> 47 /// <param name="encoding">请先确认目标网页的编码方式</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 // 采取POST方式必须加的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); // 得到返回字符流 72 return encoding.GetString(responseData);// 解码 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验证的WebRequest/WebResponse 115 116 117 118 /// <summary> 119 /// 通过 WebRequest/WebResponse 类访问远程地址并返回结果，需要Basic认证； 120 /// 调用端自己处理异常 121 /// </summary> 122 /// <param name="uri"></param> 123 /// <param name="timeout">访问超时时间，单位毫秒；如果不设置超时时间，传入0</param> 124 /// <param name="encoding">如果不知道具体的编码，传入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 访问凭证 # 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验证的WebRequest/WebResponse 177 178 179 180 C#语言写的关于HttpWebRequest 类的使用方法 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操作类 203 204 /// </summary> 205 206 public static class httptest 207 208 209 210 /// <summary> 211 212 /// 获取网址html 213 214 /// </summary> 215 216 /// <param name="URL">网址 </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 /// 获取网站cookie 259 260 /// </summary> 261 262 /// <param name="URL">网址 </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模式浏览 346 347 /// </summary> 348 349 /// <param name="server">服务器地址 </param> 350 351 /// <param name="URL">网址 </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">网址 </param> 458 459 /// <param name="cookie">cookies </param> 460 461 /// <param name="header">句柄 </param> 462 463 /// <param name="server">服务器 </param> 464 465 /// <param name="val">服务器 </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模式浏览 480 481 /// </summary> 482 483 /// <param name="URL">Get网址 </param> 484 485 /// <param name="cookie">cookie </param> 486 487 /// <param name="header">句柄 </param> 488 489 /// <param name="server">服务器地址 </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 /// 作用描述： WebRequest操作类 555 /// </summary> 556 public static class CallWebRequest 557 558 /// <summary> 559 /// 通过GET请求获取数据 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 //每次请求绕过代理，解决第一次调用慢的问题 567 request.Proxy = null; 568 //多线程并发调用时默认2个http连接数限制的问题，讲其设为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 /// 通过POST请求传递数据 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 //将发送数据转换为二进制格式 597 byte[] byteArray = Encoding.UTF8.GetBytes(postData); 598 //要POST的数据大于1024字节的时候, 浏览器并不会直接就发起POST请求, 而是会分为俩步： 599 //1. 发送一个请求, 包含一个Expect:100-continue, 询问Server使用愿意接受数据 600 //2. 接收到Server返回的100-continue应答以后, 才把数据POST给Server 601 //直接关闭第一步验证 602 request.ServicePoint.Expect100Continue = false; 603 //是否使用Nagle：不使用，提高效率 604 request.ServicePoint.UseNagleAlgorithm = false; 605 //设置最大连接数 606 request.ServicePoint.ConnectionLimit = 65500; 607 //指定压缩方法 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 //关闭缓存 617 request.AllowWriteStreamBuffering = false; 618 619 //每次请求绕过代理，解决第一次调用慢的问题 620 request.Proxy = null; 621 //多线程并发调用时默认2个http连接数限制的问题，讲其设为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 //获取服务器返回的数据流 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 /// 用于外部接口调用封装 649 /// </summary> 650 public static class ApiInterface 651 652 653 /// <summary> 654 ///验证密码是否正确 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 参数转换方法 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 /// 设置公文已读 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 ///获取OA工作流数据 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);//缓存30分钟失效 844 return list; 845 846 847 /// <summary> 848 /// 用户信息 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);//缓存30分钟失效 959 960 catch (Exception exception) 961 962 list = new List<Api_BitCourse>(); 963 Log.Error(exception.Message); 964 965 966 return list; 967 968
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