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246 lignes
8.9 KiB
246 lignes
8.9 KiB
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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using System.Net;
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namespace basic
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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)
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{
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HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
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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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#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)
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{
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HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
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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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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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finally
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{
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request = 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 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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}
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finally
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{
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wr = 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 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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}
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finally
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{
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wr = null;
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}
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return responseStr;
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}
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#endregion
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}
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}
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