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C#通过WebClient/HttpWebRequest实现http的post/get方法
//body是要传递的参数,格式"roleId=1&uid=2" //post的cotentType填写: //"application/x-www-form-urlencoded" //soap填写:"text/xml; charset=utf-8" public static string PostHttp(string url, string body, string contentType) { HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url); httpWebRequest.ContentType = contentType; httpWebRequest.Method = "POST"; httpWebRequest.Timeout = 20000; byte[] btBodys = Encoding.UTF8.GetBytes(body); httpWebRequest.ContentLength = btBodys.Length; httpWebRequest.GetRequestStream().Write(btBodys, 0, btBodys.Length); HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse(); StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream()); string responseContent = streamReader.ReadToEnd(); httpWebResponse.Close(); streamReader.Close(); httpWebRequest.Abort(); httpWebResponse.Close(); return responseContent; }
/// <summary> /// 通过WebClient类Post数据到远程地址，需要Basic认证； /// 调用端自己处理异常 /// </summary> /// <param name="uri"></param> /// <param name="paramStr">name=张三&age=20</param> /// <param name="encoding">请先确认目标网页的编码方式</param> /// <param name="username"></param> /// <param name="password"></param> /// <returns></returns> public static string Request_WebClient(string uri, string paramStr, Encoding encoding, string username, string password) { if (encoding == null) encoding = Encoding.UTF8; string result = string.Empty; WebClient wc = new WebClient(); // 采取POST方式必须加的Header wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded"); byte[] postData =http://www.mamicode.com/ encoding.GetBytes(paramStr); if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password)) { wc.Credentials = GetCredentialCache(uri, username, password); wc.Headers.Add("Authorization", GetAuthorization(username, password)); } byte[] responseData = http://www.mamicode.com/wc.UploadData(uri, "POST", postData); // 得到返回字符流 return encoding.GetString(responseData);// 解码 } POST方法(WebClient)
public static string GetHttp(string url, HttpContext httpContext) { string queryString = "?"; foreach (string key in httpContext.Request.QueryString.AllKeys) { queryString += key + "=" + httpContext.Request.QueryString[key] + "&"; } queryString = queryString.Substring(0, queryString.Length - 1); HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url + queryString); httpWebRequest.ContentType = "application/json"; httpWebRequest.Method = "GET"; httpWebRequest.Timeout = 20000; //byte[] btBodys = Encoding.UTF8.GetBytes(body); //httpWebRequest.ContentLength = btBodys.Length; //httpWebRequest.GetRequestStream().Write(btBodys, 0, btBodys.Length); HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse(); StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream()); string responseContent = streamReader.ReadToEnd(); httpWebResponse.Close(); streamReader.Close(); return responseContent; }
/// <summary> /// 通过 WebRequest/WebResponse 类访问远程地址并返回结果，需要Basic认证； /// 调用端自己处理异常 /// </summary> /// <param name="uri"></param> /// <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> /// <param name="encoding">如果不知道具体的编码，传入null</param> /// <param name="username"></param> /// <param name="password"></param> /// <returns></returns> public static string Request_WebRequest(string uri, int timeout, Encoding encoding, string username, string password) { string result = string.Empty; WebRequest request = WebRequest.Create(new Uri(uri)); if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password)) { request.Credentials = GetCredentialCache(uri, username, password); request.Headers.Add("Authorization", GetAuthorization(username, password)); } if (timeout > 0) request.Timeout = timeout; WebResponse response = request.GetResponse(); Stream stream = response.GetResponseStream(); StreamReader sr = encoding == null ? new StreamReader(stream) : new StreamReader(stream, encoding); result = sr.ReadToEnd(); sr.Close(); stream.Close(); return result; } #region # 生成 Http Basic 访问凭证 # private static CredentialCache GetCredentialCache(string uri, string username, string password) { string authorization = string.Format("{0}:{1}", username, password); CredentialCache credCache = new CredentialCache(); credCache.Add(new Uri(uri), "Basic", new NetworkCredential(username, password)); return credCache; } private static string GetAuthorization(string username, string password) { string authorization = string.Format("{0}:{1}", username, password); return "Basic " + Convert.ToBase64String(new ASCIIEncoding().GetBytes(authorization)); } #endregion
C#通过WebClient/HttpWebRequest实现http的post/get方法
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