jquery简报提交 - 加载消息

Question

我有一个时事通讯表格,我在我的网站上使用ajax和jquery.我想向用户显示一条等待消息.什么是最好的选择？

继续我到目前为止所拥有的:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
  $('#submit').click(function(e) {
    $.ajax({
      type: "POST",
      url: '/save.php',
      data:  $('#form').serialize(),
      cache: false,
      success: function(result) {
        // my code when success
      }
    });
  });
});

</script>

<div id="newsletter">
  <form id="form">
  <label for="email">Your Email*:</label>
  <input name="email" value="" type="text" id="email" size="30" maxlength="255" />
  <span id="submit">Submit</span>
  </form>
</div>

谢谢

Answer 1

这是你可以做的:

创建一个div(消息对话框),并在用户按下提交时显示,并在完成ajax时隐藏它.我还建议使用jQuery Validation插件来验证电子邮件.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
  $('#submit').click(function(e) {
    // validation
    $.ajax({
      type: "POST",
      url: '/file.php',
      data:  $('#form').serialize(),
      cache: false,
      success: function(result) {
        // do what ever you need
      },
      error: function (response, desc, exception) {
        // alert some message
      },
      beforeSend: function() {
        $('#loader').fadeIn(1000);
      },
      complete: function() {
        $('#loader').fadeOut(1000);
      },
    });
  });
});

</script>
<style type="text/css">
  #loader { display: none; /* and other css youy need like border, position, etc... */ }
</style>

<div id="loader">loading ...</div>

<div id="newsletter">
  <form id="form">
  <label for="email">Your Email*:</label>
  <input name="email" value="" type="text" id="email" size="30" maxlength="255" />
  <span id="submit">Submit</span>
  </form>
</div>

Answer 2

你可以这样做.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
  $('#submit').click(function(e) {

   //Put the loding script here
   $("#preloader").show();

    $.ajax({
      type: "POST",
      url: '/save.php',
      data:  $('#form').serialize(),
      cache: false,
      success: function(result) {
        // my code when success
        //Stop the preloader if the process is done
        $("#preloader").hide();
      }
    });
  });
});



<div id="newsletter">
  <form id="form">
  <label for="email">Your Email*:</label>
  <input name="email" value="" type="text" id="email" size="30" maxlength="255" />
  <span id="submit">Submit</span>
  <img src="preloader.gif" id="preloader" />
  </form>
</div>

当用户点击提交时显示您的预加载器图像.完成此过程后,将其隐藏.