ASP.Net从jQuery中选择多个文件后上传

$(document).ready(function () {
  $("#upload").click(function () {
    var files = $("#files")[0].files;
    var formData = new FormData();
    for (var i = 0; i< files.length; i++) {
      formData.append("files", files[i]);
    }
    $.ajax({
      url: "Upload.ashx",
      type: "POST",
      data: formData,
      processData: false,
      contentType: false,
      success: function (response) {
        alert("文件上传成功！");
      },
      error: function (error) {
        alert("文件上传失败！");
      },
    });
  });
});

using System;
using System.Web;

public class Upload : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        if (context.Request.Files.Count > 0)
        {
            HttpFileCollection files = context.Request.Files;
            for (int i = 0; i< files.Count; i++)
            {
                HttpPostedFile file = files[i];
                string fileName = file.FileName;
                int fileSize = file.ContentLength;
                string contentType = file.ContentType;
                // 在这里处理文件上传，例如保存到服务器或数据库
            }
        }
    }

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