C# WinForm 上传图片，文件到服务器的方法Uploader.ashx

网上有很多方案，起初用时，因为对asp.net不太了解，觉得FTP实现不错，可是后来发现，如果机器在域控下，就会有问题。

一年过去了，asp.net也熟悉了，知道ajax没事应该用ashx，验证码也用ashx，当然这里要说的WinForm上传也应该是ashx了吧，哈哈，先提供简单思路：

接收文件的asp.net是：Uploader.ashx，相关代码：

<%@ WebHandler Language="C#" Class="Uploader" %>
using System;
using System.IO;
using System.Web;

public class Uploader : IHttpHandler
{
    public void ProcessRequest(HttpContext hc)
    {
        foreach (string fileKey in hc.Request.Files)
        {
            HttpPostedFile file = hc.Request.Files[fileKey];
            file.SaveAs(Path.Combine(hc.Server.MapPath("."), file.FileName));
        }
    }

    public bool IsReusable
    {
        get { return true; }
    }
}

<%@ WebHandler Language="C#" Class="Uploader" %>
using System;
using System.IO;
using System.Web;

public class Uploader : IHttpHandler
{
    public void ProcessRequest(HttpContext hc)
    {
        foreach (string fileKey in hc.Request.Files)
        {
            HttpPostedFile file = hc.Request.Files[fileKey];
            file.SaveAs(Path.Combine(hc.Server.MapPath("."), file.FileName));
        }
    }

    public bool IsReusable
    {
        get { return true; }
    }
}

 发送图片或文件的WinForm.cs 相关代码：
 

System.Net.WebClient myWebClient = new System.Net.WebClient();
myWebClient.UploadFile("http://www.yongfa365.com/Uploader.ashx", "POST", "C:\\WINDOWS\\system32\\cmd.exe");

System.Net.WebClient myWebClient = new System.Net.WebClient();
myWebClient.UploadFile("http://www.yongfa365.com/Uploader.ashx", "POST", "C:\\WINDOWS\\system32\\cmd.exe");

OK,完了，这样操作后，再也不用管是不是在域控内了，只要能上网，就能上传。够方便吧。

---

如果你要批量上传，还有上传后保存在哪个目录等操作可以参考柳永法(yongfa365)'Blog写的：

接收文件的asp.net是：Uploader.ashx，相关代码：

<%@ WebHandler Language="C#" Class="Uploader" %>
using System;
using System.IO;
using System.Web;

public class Uploader : IHttpHandler
{
    public void ProcessRequest(HttpContext hc)
    {
        string NowPath = Path.Combine(hc.Server.MapPath("."), hc.Request["path"]);

        if (!Directory.Exists(NowPath))
        {
            Directory.CreateDirectory(NowPath);
        }

        foreach (string fileKey in hc.Request.Files)
        {
            HttpPostedFile file = hc.Request.Files[fileKey];
            string FilePath = Path.Combine(NowPath, file.FileName);
            if (File.Exists(FilePath))
            {
                if (Convert.ToBoolean(hc.Request["overwrite"]))
                {
                    File.Delete(FilePath);
                }
                else
                {
                    continue;
                }
            }
            file.SaveAs(FilePath);
        }
    }

    public bool IsReusable
    {
        get { return true; }
    }
}

<%@ WebHandler Language="C#" Class="Uploader" %>
using System;
using System.IO;
using System.Web;

public class Uploader : IHttpHandler
{
    public void ProcessRequest(HttpContext hc)
    {
        string NowPath = Path.Combine(hc.Server.MapPath("."), hc.Request["path"]);

        if (!Directory.Exists(NowPath))
        {
            Directory.CreateDirectory(NowPath);
        }

        foreach (string fileKey in hc.Request.Files)
        {
            HttpPostedFile file = hc.Request.Files[fileKey];
            string FilePath = Path.Combine(NowPath, file.FileName);
            if (File.Exists(FilePath))
            {
                if (Convert.ToBoolean(hc.Request["overwrite"]))
                {
                    File.Delete(FilePath);
                }
                else
                {
                    continue;
                }
            }
            file.SaveAs(FilePath);
        }
    }

    public bool IsReusable
    {
        get { return true; }
    }
}

 发送图片或文件的WinForm.cs 相关代码：
 

string url = @"http://www.yongfa365.com/Uploader.ashx?Overwrite=true&PATH=Logs\" + DateTime.Now.ToString("yyyy-MM-dd");
foreach (string file in Directory.GetFiles(item))
{
    System.Net.WebClient myWebClient = new System.Net.WebClient();
    myWebClient.UploadFile(url, "POST", file);
}