如何使用ajax将javascript图像数组传递给rails控制器

view

<div class="top-main-section-area">
   <div id="upload-area" class="uploader1"  onclick="$('#post_image').click()">
      <div class="message" id="slider-message">
         <center>
            <font color="#808080">click here to upload sliderimages</font>
         </center>
      </div>
      <%= f.file_field :images , array: true , type:'file' ,:onchange => 'readURL(this)',class:'slide-img',multiple: true, id:'files' %>
      <img id="slide_image" src="#" alt="image" style="display: none;" class="slide_image" />
   </div>
</div>
<div class="top-main-section-area">
   <