using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Net.Http;
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using System.Net.Security;
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using System.Security.Cryptography.X509Certificates;
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using System.Text;
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namespace FineAdmin.Common
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{
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public class HttpMethods
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{
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#region POST
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/// <summary>
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/// HTTP POST方式请求数据
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/// </summary>
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/// <param name="url">URL.</param>
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/// <param name="param">POST的数据</param>
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/// <returns></returns>
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public static string HttpPost(string url, string param = null)
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{
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HttpWebRequest request;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "POST";
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request.ContentType = "application/x-www-form-urlencoded";
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request.Accept = "*/*";
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request.Timeout = 15000;
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request.AllowAutoRedirect = false;
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StreamWriter requestStream = null;
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WebResponse response = null;
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string responseStr = null;
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try
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{
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requestStream = new StreamWriter(request.GetRequestStream());
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requestStream.Write(param);
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requestStream.Close();
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response = request.GetResponse();
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if (response != null)
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{
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
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responseStr = reader.ReadToEnd();
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reader.Close();
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}
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}
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catch (Exception)
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{
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throw;
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}
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finally
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{
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request = null;
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requestStream = null;
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response = null;
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}
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return responseStr;
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}
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private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
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{
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return true; //总是接受
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}
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public static string BuildRequest(string strUrl, Dictionary<string, string> dicPara, string fileName)
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{
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string contentType = "image/jpeg";
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//待请求参数数组
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FileStream Pic = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
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byte[] PicByte = new byte[Pic.Length];
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Pic.Read(PicByte, 0, PicByte.Length);
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int lengthFile = PicByte.Length;
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//构造请求地址
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//设置HttpWebRequest基本信息
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HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(strUrl);
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//设置请求方式：get、post
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request.Method = "POST";
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//设置boundaryValue
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string boundaryValue = DateTime.Now.Ticks.ToString("x");
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string boundary = "--" + boundaryValue;
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request.ContentType = "\r\nmultipart/form-data; boundary=" + boundaryValue;
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//设置KeepAlive
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request.KeepAlive = true;
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//设置请求数据，拼接成字符串
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StringBuilder sbHtml = new StringBuilder();
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foreach (KeyValuePair<string, string> key in dicPara)
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{
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sbHtml.Append(boundary + "\r\nContent-Disposition: form-data; name=\"" + key.Key + "\"\r\n\r\n" + key.Value + "\r\n");
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}
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sbHtml.Append(boundary + "\r\nContent-Disposition: form-data; name=\"pic\"; filename=\"");
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sbHtml.Append(fileName);
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sbHtml.Append("\"\r\nContent-Type: " + contentType + "\r\n\r\n");
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string postHeader = sbHtml.ToString();
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//将请求数据字符串类型根据编码格式转换成字节流
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Encoding code = Encoding.GetEncoding("UTF-8");
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byte[] postHeaderBytes = code.GetBytes(postHeader);
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byte[] boundayBytes = Encoding.ASCII.GetBytes("\r\n" + boundary + "--\r\n");
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//设置长度
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long length = postHeaderBytes.Length + lengthFile + boundayBytes.Length;
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request.ContentLength = length;
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//请求远程HTTP
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Stream requestStream = request.GetRequestStream();
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Stream myStream = null;
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try
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{
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//发送数据请求服务器
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requestStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
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requestStream.Write(PicByte, 0, lengthFile);
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requestStream.Write(boundayBytes, 0, boundayBytes.Length);
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HttpWebResponse HttpWResp = (HttpWebResponse)request.GetResponse();
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myStream = HttpWResp.GetResponseStream();
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}
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catch (WebException e)
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{
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//LogResult(e.Message);
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return "";
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}
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finally
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{
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if (requestStream != null)
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{
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requestStream.Close();
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}
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}
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//读取处理结果
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StreamReader reader = new StreamReader(myStream, code);
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StringBuilder responseData = new StringBuilder();
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String line;
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while ((line = reader.ReadLine()) != null)
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{
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responseData.Append(line);
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}
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myStream.Close();
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Pic.Close();
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return responseData.ToString();
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}
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#endregion
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#region Put
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/// <summary>
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/// HTTP Put方式请求数据.
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/// </summary>
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/// <param name="url">URL.</param>
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/// <returns></returns>
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public static string HttpPut(string url, string param = null)
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{
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HttpWebRequest request;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "PUT";
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request.ContentType = "application/x-www-form-urlencoded";
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request.Accept = "*/*";
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request.Timeout = 15000;
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request.AllowAutoRedirect = false;
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StreamWriter requestStream = null;
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WebResponse response = null;
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string responseStr = null;
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try
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{
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requestStream = new StreamWriter(request.GetRequestStream());
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requestStream.Write(param);
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requestStream.Close();
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response = request.GetResponse();
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if (response != null)
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{
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
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responseStr = reader.ReadToEnd();
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reader.Close();
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}
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}
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catch (Exception)
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{
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throw;
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}
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finally
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{
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request = null;
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requestStream = null;
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response = null;
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}
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return responseStr;
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}
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#endregion
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#region Delete
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/// <summary>
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/// HTTP Delete方式请求数据.
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/// </summary>
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/// <param name="url">URL.</param>
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/// <returns></returns>
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public static string HttpDelete(string url, string param = null)
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{
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HttpWebRequest request;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "Delete";
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request.ContentType = "application/x-www-form-urlencoded";
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request.Accept = "*/*";
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request.Timeout = 15000;
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request.AllowAutoRedirect = false;
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StreamWriter requestStream = null;
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WebResponse response = null;
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string responseStr = null;
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try
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{
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requestStream = new StreamWriter(request.GetRequestStream());
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requestStream.Write(param);
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requestStream.Close();
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response = request.GetResponse();
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if (response != null)
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{
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
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responseStr = reader.ReadToEnd();
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reader.Close();
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}
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}
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catch (Exception)
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{
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throw;
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}
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return responseStr;
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}
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#endregion
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#region Get
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/// <summary>
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/// HTTP GET方式请求数据.
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/// </summary>
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/// <param name="url">URL.</param>
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/// <returns></returns>
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public static string HttpGet(string url, Hashtable headht = null)
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{
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HttpWebRequest request;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "GET";
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//request.ContentType = "application/x-www-form-urlencoded";
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request.Accept = "*/*";
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request.Timeout = 15000;
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request.AllowAutoRedirect = false;
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WebResponse response = null;
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string responseStr = null;
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if (headht != null)
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{
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foreach (DictionaryEntry item in headht)
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{
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request.Headers.Add(item.Key.ToString(), item.Value.ToString());
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}
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}
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try
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{
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response = request.GetResponse();
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if (response != null)
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{
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
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responseStr = reader.ReadToEnd();
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reader.Close();
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}
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}
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catch (Exception)
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{
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throw;
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}
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return responseStr;
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}
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public static string HttpGet(string url, Encoding encodeing, Hashtable headht = null)
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{
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HttpWebRequest request;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "GET";
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//request.ContentType = "application/x-www-form-urlencoded";
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request.Accept = "*/*";
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request.Timeout = 15000;
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request.AllowAutoRedirect = false;
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WebResponse response = null;
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string responseStr = null;
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if (headht != null)
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{
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foreach (DictionaryEntry item in headht)
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{
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request.Headers.Add(item.Key.ToString(), item.Value.ToString());
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}
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}
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try
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{
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response = request.GetResponse();
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if (response != null)
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{
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StreamReader reader = new StreamReader(response.GetResponseStream(), encodeing);
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responseStr = reader.ReadToEnd();
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reader.Close();
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}
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}
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catch (Exception)
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{
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throw;
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}
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return responseStr;
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}
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#endregion
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#region Post With Pic
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private string HttpPost(string url, IDictionary<object, object> param, string filePath)
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{
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string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
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byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
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HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(url);
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wr.ContentType = "multipart/form-data; boundary=" + boundary;
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wr.Method = "POST";
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wr.KeepAlive = true;
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wr.Credentials = System.Net.CredentialCache.DefaultCredentials;
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Stream rs = wr.GetRequestStream();
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string responseStr = null;
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string formdataTemplate = "Content-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}";
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foreach (string key in param.Keys)
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{
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rs.Write(boundarybytes, 0, boundarybytes.Length);
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string formitem = string.Format(formdataTemplate, key, param[key]);
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byte[] formitembytes = System.Text.Encoding.UTF8.GetBytes(formitem);
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rs.Write(formitembytes, 0, formitembytes.Length);
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}
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rs.Write(boundarybytes, 0, boundarybytes.Length);
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string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n";
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string header = string.Format(headerTemplate, "pic", filePath, "text/plain");
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byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
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rs.Write(headerbytes, 0, headerbytes.Length);
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FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
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byte[] buffer = new byte[4096];
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int bytesRead = 0;
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while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
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{
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rs.Write(buffer, 0, bytesRead);
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}
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fileStream.Close();
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byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
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rs.Write(trailer, 0, trailer.Length);
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rs.Close();
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WebResponse wresp = null;
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try
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{
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wresp = wr.GetResponse();
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Stream stream2 = wresp.GetResponseStream();
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StreamReader reader2 = new StreamReader(stream2);
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responseStr = reader2.ReadToEnd();
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//logger.Debug(string.Format("File uploaded, server response is: {0}", responseStr));
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}
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catch (Exception ex)
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{
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//logger.Error("Error uploading file", ex);
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if (wresp != null)
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{
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wresp.Close();
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wresp = null;
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}
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throw;
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}
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return responseStr;
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}
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#endregion
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#region Post With Pic
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/// <summary>
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/// HTTP POST方式请求数据(带图片)
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/// </summary>
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/// <param name="url">URL</param>
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/// <param name="param">POST的数据</param>
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/// <param name="fileByte">图片</param>
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/// <returns></returns>
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public static string HttpPost(string url, IDictionary<object, object> param, byte[] fileByte)
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{
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string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
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byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
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HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(url);
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wr.ContentType = "multipart/form-data; boundary=" + boundary;
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wr.Method = "POST";
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wr.KeepAlive = true;
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wr.Credentials = System.Net.CredentialCache.DefaultCredentials;
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Stream rs = wr.GetRequestStream();
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string responseStr = null;
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string formdataTemplate = "Content-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}";
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foreach (string key in param.Keys)
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{
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rs.Write(boundarybytes, 0, boundarybytes.Length);
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string formitem = string.Format(formdataTemplate, key, param[key]);
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byte[] formitembytes = System.Text.Encoding.UTF8.GetBytes(formitem);
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rs.Write(formitembytes, 0, formitembytes.Length);
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}
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rs.Write(boundarybytes, 0, boundarybytes.Length);
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string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n";
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string header = string.Format(headerTemplate, "pic", fileByte, "text/plain");//image/jpeg
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byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
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rs.Write(headerbytes, 0, headerbytes.Length);
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rs.Write(fileByte, 0, fileByte.Length);
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byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
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rs.Write(trailer, 0, trailer.Length);
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rs.Close();
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WebResponse wresp = null;
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try
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{
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wresp = wr.GetResponse();
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Stream stream2 = wresp.GetResponseStream();
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StreamReader reader2 = new StreamReader(stream2);
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responseStr = reader2.ReadToEnd();
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// logger.Error(string.Format("File uploaded, server response is: {0}", responseStr));
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}
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catch (Exception ex)
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{
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//logger.Error("Error uploading file", ex);
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if (wresp != null)
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{
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wresp.Close();
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wresp = null;
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}
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throw;
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}
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return responseStr;
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}
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#endregion
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#region HttpsClient
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/// <summary>
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/// 创建HttpClient
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/// </summary>
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/// <returns></returns>
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public static HttpClient CreateHttpClient(string url)
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{
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HttpClient httpclient;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;
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httpclient = new HttpClient();
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}
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else
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{
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httpclient = new HttpClient();
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}
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return httpclient;
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}
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#endregion
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}
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}
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