WPF HTTP请求(GET,POST)
using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Net;using System.Net.Security;using System.Security.Cryptography.X509Certificates;using System.Text;using System.Threading.Tasks;namespace Nova.NovaiCloud.NovaiCloudCareHelper.Common{ public class HttpRequestHelper { public static string HttpPost(string Url, string postDataStr,ref bool isSuccess) { try { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); request.Method = "POST"; request.ContentType = "application/json"; request.ContentLength = Encoding.UTF8.GetByteCount(postDataStr); //request.CookieContainer = cookie; Stream myRequestStream = request.GetRequestStream(); StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312")); myStreamWriter.Write(postDataStr); myStreamWriter.Close(); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); //response.Cookies = cookie.GetCookies(response.ResponseUri); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8")); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); return retString; } catch (Exception e) { isSuccess = false; Console.Write(e.Message); return e.Message; } } public string HttpGet(string Url, string postDataStr) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr); request.Method = "GET"; request.ContentType = "application/json"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8")); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); return retString; } /// /// 创建GET方式的HTTP请求 /// //public static HttpWebResponse CreateGetHttpResponse(string url, int timeout, string userAgent, CookieCollection cookies) public static HttpWebResponse CreateGetHttpResponse(string url) { HttpWebRequest request = null; if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)) { //对服务端证书进行有效性校验（非第三方权威机构颁发的证书，如自己生成的，不进行验证，这里返回true） ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request = WebRequest.Create(url) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version10; //http版本，默认是1.1,这里设置为1.0 } else { request = WebRequest.Create(url) as HttpWebRequest; } request.Method = "GET"; //设置代理UserAgent和超时 //request.UserAgent = userAgent; //request.Timeout = timeout; //if (cookies != null) //{ // request.CookieContainer = new CookieContainer(); // request.CookieContainer.Add(cookies); //} return request.GetResponse() as HttpWebResponse; } /// /// 创建POST方式的HTTP请求 /// //public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary parameters, int timeout, string userAgent, CookieCollection cookies) public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary parameters) { HttpWebRequest request = null; //如果是发送HTTPS请求 if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)) { //ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request = WebRequest.Create(url) as HttpWebRequest; //request.ProtocolVersion = HttpVersion.Version10; } else { request = WebRequest.Create(url) as HttpWebRequest; } request.Method = "POST"; request.ContentType = "application/json"; //设置代理UserAgent和超时 //request.UserAgent = userAgent; //request.Timeout = timeout; //if (cookies != null) //{ // request.CookieContainer = new CookieContainer(); // request.CookieContainer.Add(cookies); //} //发送POST数据 if (!(parameters == null || parameters.Count == 0)) { StringBuilder buffer = new StringBuilder(); int i = 0; foreach (string key in parameters.Keys) { if (i > 0) { buffer.AppendFormat("&{0}={1}", key, parameters[key]); } else { buffer.AppendFormat("{0}={1}", key, parameters[key]); i++; } } byte[] data = Encoding.ASCII.GetBytes(buffer.ToString()); using (Stream stream = request.GetRequestStream()) { stream.Write(data, 0, data.Length); } } string[] values = request.Headers.GetValues("Content-Type"); return request.GetResponse() as HttpWebResponse; } /// /// 获取请求的数据 /// public static string GetResponseString(HttpWebResponse webresponse) { using (Stream s = webresponse.GetResponseStream()) { StreamReader reader = new StreamReader(s, Encoding.UTF8); return reader.ReadToEnd(); } } /// /// 验证证书 /// private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { if (errors == SslPolicyErrors.None) return true; return false; } }}