HTTP上传文件代码,CSharp代码库,德仔网

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【CSharp】 HTTP上传文件

作者:伊菲 / 发布于2014/11/18/ 686


	/// <summary>
	/// Http上传文件
	/// </summary>
	public static string HttpUploadFile(string url, string path)
	{
	 // 设置参数
	 HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
	 CookieContainer cookieContainer = new CookieContainer();
	 request.CookieContainer = cookieContainer;
	 request.AllowAutoRedirect = true;
	 request.Method = "POST";
	 string boundary = DateTime.Now.Ticks.ToString("X"); // 随机分隔线
	 request.ContentType = "multipart/form-data;charset=utf-8;boundary=" + boundary;
	 byte[] itemBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "\r\n");
	 byte[] endBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");

	 int pos = path.LastIndexOf("\\");
	 string fileName = path.Substring(pos + 1);

	 //请求头部信息
	 StringBuilder sbHeader = new StringBuilder(string.Format("Content-Disposition:form-data;name=\"file\";filename=\"{0}\"\r\nContent-Type:application/octet-stream\r\n\r\n", fileName));
	 byte[] postHeaderBytes = Encoding.UTF8.GetBytes(sbHeader.ToString());

	 FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);
	 byte[] bArr = new byte[fs.Length];
	 fs.Read(bArr, 0, bArr.Length);
	 fs.Close();

	 Stream postStream = request.GetRequestStream();
	 postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
	 postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
	 postStream.Write(bArr, 0, bArr.Length);
	 postStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
	 postStream.Close();

	 //发送请求并获取相应回应数据
	 HttpWebResponse response = request.GetResponse() as HttpWebResponse;
	 //直到request.GetResponse()程序才开始向目标网页发送Post请求
	 Stream instream = response.GetResponseStream();
	 StreamReader sr = new StreamReader(instream, Encoding.UTF8);
	 //返回结果网页（html）代码
	 string content = sr.ReadToEnd();
	 return content;
	}

	

	接收文件的代码：

	using System;
	using System.Web;

	namespace SWX
	{
	 public partial class test2 : System.Web.UI.Page
	 {
	 protected void Page_Load(object sender, EventArgs e)
	 {
	 HttpPostedFile file = Request.Files[0];
	 file.SaveAs(MapPath("\\UploadFile\\" + file.FileName));
	 Response.Write("Success\r\n");
	 }
	 }
	}

试试其它关键字

　HTTP上传文件　　 HTTP　　上传文件　

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