如何使用ajax或jquery将图像保存到asp.net中的文件夹中

<input type="file" id="imageFile" />
<button onclick="uploadImage()">上传图像</button>

function uploadImage() {
  var fileInput = document.getElementById("imageFile");
  var file = fileInput.files[0];
  
  var formData = new FormData();
  formData.append("image", file);
  
  $.ajax({
    url: "SaveImage.aspx",
    type: "POST",
    data: formData,
    processData: false,
    contentType: false,
    success: function(response) {
      // 图像保存成功后的处理逻辑
    },
    error: function(xhr, status, error) {
      // 图像保存失败后的处理逻辑
    }
  });
}

protected void Page_Load(object sender, EventArgs e)
{
    if (Request.Files.Count > 0)
    {
        HttpPostedFile file = Request.Files[0];
        string fileName = Path.GetFileName(file.FileName);
        string filePath = Server.MapPath("~/Images/" + fileName);
        file.SaveAs(filePath);
        
        // 图像保存成功后的处理逻辑
        Response.Write("图像保存成功！");
    }
    else
    {
        // 图像保存失败后的处理逻辑
        Response.Write("图像保存失败！");
    }
}