c# - 如何使用 POST 在 HTTP 服务器上上传文件？

Question

我正在尝试使用 POST 在 HTTP 服务器上上传文件，但是当我调用它时出现错误 req.GetResponse(); 在客户端代码中

远程服务器返回错误:(405) 方法不允许。

客户端代码

    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string fileToUpload = Server.MapPath("~/Files/Ricky_Martin_Livin_la.mp3");
            string uploadUrl = "http://localhost/soundcheck/uploadfiles.aspx";
            //string uploadUrl = "http://10.0.2.2/musicapp/handle_upload.php";
            FileStream rdr = new FileStream(fileToUpload, FileMode.Open);
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(uploadUrl);
            req.Method = "PUT"; // you might use "POST"
            req.ContentLength = rdr.Length;
            req.AllowWriteStreamBuffering = true;

            Stream reqStream = req.GetRequestStream();

            byte[] inData = new byte[rdr.Length];

            // Get data from upload file to inData 
            int bytesRead = rdr.Read(inData, 0, int.Parse(rdr.Length.ToString()));

            // put data into request stream
            reqStream.Write(inData, 0, int.Parse(rdr.Length.ToString()));

            rdr.Close();
            req.GetResponse();

            // after uploading close stream 
            reqStream.Close();
        }
    }

服务器代码

using System;
using System.Collections;
using System.IO;
using System.Data;
using System.Web;
using System.Text;
using System.Web.Security;

public partial class uploadfiles : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            LogInFile("First");
            HttpFileCollection uploadFile = Request.Files;
            LogInFile("Second");
            if (uploadFile.Count > 0)
            {
                HttpPostedFile postedFile = uploadFile[0];
                LogInFile("Thrid");
                System.IO.Stream inStream = postedFile.InputStream;
                LogInFile("Forth");
                byte[] fileData = new byte[postedFile.ContentLength];
                LogInFile("Fifth");
                inStream.Read(fileData, 0, postedFile.ContentLength);
                LogInFile("Sixth");
                postedFile.SaveAs(Server.MapPath("Data") + "\\" + postedFile.FileName);
            }        
        }
        catch (Exception ex)
        { 
            StringBuilder sb = new StringBuilder();
            sb.AppendLine("Message : " +ex.Message);
            sb.AppendLine("Source : " + ex.Source);
            sb.AppendLine("StackTrace : " + ex.StackTrace);
            sb.AppendLine("InnerException : " + ex.InnerException);
            sb.AppendLine("ToString : " + ex.ToString());

            LogInFile(sb.ToString());
        }
    }
    public void LogInFile(string str)
    {
        StringBuilder sb = new StringBuilder();
        using (StreamReader sr = new StreamReader(Server.MapPath("Data") + "\\expfile.txt"))
        {            
            sb.AppendLine("= = = = = =");
            sb.Append(sr.ReadToEnd());
            sb.AppendLine();
            sb.AppendLine();
        }
        sb.AppendLine(str);
        using (StreamWriter outfile = new StreamWriter(Server.MapPath("Data") + "\\expfile.txt"))
        {
            outfile.Write(sb.ToString());
        }
    }

}

在服务器代码中我写了这些日志来跟踪是否有任何错误或错误在哪一行。

Answer 1

req.Method = "PUT"; // you might use "POST"

到

req.Method = "POST"; 

然后再试一次。