如何将参数添加到WebRequest中？
我需要从一个web服务调用一个方法，所以我写了这个代码：
private string urlPath = "http://xxx.xxx.xxx/manager/"; string request = urlPath + "index.php/org/get_org_form"; WebRequest webRequest = WebRequest.Create(request); webRequest.Method = "POST"; webRequest.ContentType = "application/x-www-form-urlencoded"; webRequest. webRequest.ContentLength = 0; WebResponse webResponse = webRequest.GetResponse(); 但是这个方法需要一些参数，如下所示：
发布数据：
_username:'API USER', // api authentication username _password:'API PASSWORD', // api authentication password
如何将这些参数添加到此Webrequest中？
提前致谢。
如果这些是url-string的参数，那么你需要通过'？'来添加它们。 和'＆'字符，例如http://example.com/index.aspx?username=Api_user&password=Api_password 。
如果这些是POST请求的参数，那么您需要创buildPOST数据并将其写入请求stream。 这里是示例方法：
private static string doRequestWithBytesPostData(string requestUri, string method, byte[] postData, CookieContainer cookieContainer, string userAgent, string acceptHeaderString, string referer, string contentType, out string responseUri) { var result = ""; if (!string.IsNullOrEmpty(requestUri)) { var request = WebRequest.Create(requestUri) as HttpWebRequest; if (request != null) { request.KeepAlive = true; var cachePolicy = new RequestCachePolicy(RequestCacheLevel.BypassCache); request.CachePolicy = cachePolicy; request.Expect = null; if (!string.IsNullOrEmpty(method)) request.Method = method; if (!string.IsNullOrEmpty(acceptHeaderString)) request.Accept = acceptHeaderString; if (!string.IsNullOrEmpty(referer)) request.Referer = referer; if (!string.IsNullOrEmpty(contentType)) request.ContentType = contentType; if (!string.IsNullOrEmpty(userAgent)) request.UserAgent = userAgent; if (cookieContainer != null) request.CookieContainer = cookieContainer; request.Timeout = Constants.RequestTimeOut; if (request.Method == "POST") { if (postData != null) { request.ContentLength = postData.Length; using (var dataStream = request.GetRequestStream()) { dataStream.Write(postData, 0, postData.Length); } } } using (var httpWebResponse = request.GetResponse() as HttpWebResponse) { if (httpWebResponse != null) { responseUri = httpWebResponse.ResponseUri.AbsoluteUri; cookieContainer.Add(httpWebResponse.Cookies); using (var streamReader = new StreamReader(httpWebResponse.GetResponseStream())) { result = streamReader.ReadToEnd(); } return result; } } } } responseUri = null; return null; }
使用stream将内容写入webrequest
string data = "username=<value>&password=<value>"; //replace <value> byte[] dataStream = Encoding.UTF8.GetBytes(data); private string urlPath = "http://xxx.xxx.xxx/manager/"; string request = urlPath + "index.php/org/get_org_form"; WebRequest webRequest = WebRequest.Create(request); webRequest.Method = "POST"; webRequest.ContentType = "application/x-www-form-urlencoded"; webRequest.ContentLength = dataStream.Length; Stream newStream=webRequest.GetRequestStream(); // Send the data. newStream.Write(dataStream,0,dataStream.Length); newStream.Close(); WebResponse webResponse = webRequest.GetResponse();
为了做FORMpost，最好的方法是使用WebClient.UploadValues（）和POST方法。
希望这个作品
webRequest.Credentials= new NetworkCredential("API_User","API_Password");
