将html表td值传递给rails控制器

<form action="/controller/action" method="post">
  <table>
    <tr>
      <td><input type="hidden" name="td_value" value="value1"></td>
      <td><input type="hidden" name="td_value" value="value2"></td>
    </tr>
  </table>
  <input type="submit" value="Submit">
</form>

class Controller < ApplicationController
  def action
    td_values = params[:td_value]
    # 处理传递的td值
  end
end

<table>
  <tr>
    <td>value1</td>
    <td>value2</td>
  </tr>
</table>
<button onclick="sendData()">Submit</button>

function sendData() {
  var tdValues = [];
  var tds = document.getElementsByTagName('td');
  for (var i = 0; i < tds.length; i++) {
    tdValues.push(tds[i].innerText);
  }

  var xhr = new XMLHttpRequest();
  xhr.open('POST', '/controller/action', true);
  xhr.setRequestHeader('Content-Type', 'application/json');
  xhr.onreadystatechange = function() {
    if (xhr.readyState === 4 && xhr.status === 200) {
      // 请求成功处理
    }
  };
  xhr.send(JSON.stringify({ td_values: tdValues }));
}

class Controller < ApplicationController
  def action
    td_values = params[:td_values]
    # 处理传递的td值
  end
end