别的不多少了直接代码就行了：
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net; using System.Net.Security; using System.Security.Authentication; using System.Security.Cryptography.X509Certificates; using System.IO; namespace WXMaster.Models { public class PostHelp { public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { //直接确认，否则打不开 return true; } #region 处理http POST请求，返回数据 /// <summary> /// 处理http POST请求，返回数据 /// </summary> /// <param name="json">请求参数</param> /// <param name="url">请求接口地址</param> /// <param name="isUseCert">是否使用证书</param> /// <param name="timeout">设置超时时间</param> /// <returns>http POST成功后返回的数据，失败抛WebException异常</returns> public static string Post(string json, string url, bool isUseCert, int timeout) { System.GC.Collect();//垃圾回收，回收没有正常关闭的http连接 string result = "";//返回结果 HttpWebRequest request = null; HttpWebResponse response = null; Stream reqStream = null; try { //设置最大连接数 ServicePointManager.DefaultConnectionLimit = 200; //设置https验证方式 if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); } /*************************************************************** * 下面设置HttpWebRequest的相关属性 * ************************************************************/ request = (HttpWebRequest)WebRequest.Create(url); request.Method = "POST"; request.Timeout = timeout * 1000; //设置POST的数据类型和长度 request.ContentType = "application/json;charset=UTF-8"; byte[] data = System.Text.Encoding.UTF8.GetBytes(json); request.ContentLength = data.Length; //往服务器写入数据 reqStream = request.GetRequestStream(); reqStream.Write(data, 0, data.Length); reqStream.Close(); //获取服务端返回 response = (HttpWebResponse)request.GetResponse(); //获取服务端返回数据 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8); result = sr.ReadToEnd().Trim(); sr.Close(); } catch (System.Threading.ThreadAbortException e) { System.Threading.Thread.ResetAbort(); } catch (WebException e) { if (e.Status == WebExceptionStatus.ProtocolError) { } } catch (Exception e) { } finally { //关闭连接和流 if (response != null) { response.Close(); } if (request != null) { request.Abort(); } } return result; } #endregion #region 处理http GET请求，返回数据 /// <summary> /// 处理http GET请求，返回数据 /// </summary> /// <param name="url">请求的url地址</param> /// <returns>http GET成功后返回的数据，失败抛WebException异常</returns> public static string Get(string url) { System.GC.Collect(); string result = ""; HttpWebRequest request = null; HttpWebResponse response = null; //请求url以获取数据 try { //设置最大连接数 ServicePointManager.DefaultConnectionLimit = 200; //设置https验证方式 if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); } /*************************************************************** * 下面设置HttpWebRequest的相关属性 * ************************************************************/ request = (HttpWebRequest)WebRequest.Create(url); request.Method = "GET"; //获取服务器返回 response = (HttpWebResponse)request.GetResponse(); //获取HTTP返回数据 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8); result = sr.ReadToEnd().Trim(); sr.Close(); } catch (System.Threading.ThreadAbortException e) { System.Threading.Thread.ResetAbort(); } catch (WebException e) { } catch (Exception e) { } finally { //关闭连接和流 if (response != null) { response.Close(); } if (request != null) { request.Abort(); } } return result; } #endregion } }
HttpClient请求可以可以查看这位博客哦我就不罗嗦了：https://www.cnblogs.com/louby/p/8021527.html
作者：YanBigFeg —— 颜秉锋
出处：http://www.cnblogs.com/yanbigfeg
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