jQuery 教程与表单（Form）插件的交互（AJAX 提交）

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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery Validate 插件 - 与表单（Form）插件的交互（AJAX 提交）</title>
<link rel="stylesheet" media="screen" href="https://plugin.s.ancii.com/jqueryvalidation/jquery-validation-1.14.0/demo/css/screen.css">
<style type="text/css">
.warning { color: red; }
</style>
<script src="https://plugin.s.ancii.com/jqueryvalidation/jquery-validation-1.14.0/lib/jquery.js"></script>
<script src="https://plugin.s.ancii.com/jqueryvalidation/jquery-validation-1.14.0/lib/jquery.mockjax.js"></script>
<script src="https://plugin.s.ancii.com/jqueryvalidation/jquery-validation-1.14.0/lib//jquery.form.js"></script>
<script src="https://plugin.s.ancii.com/jqueryvalidation/jquery-validation-1.14.0/dist/jquery.validate.min.js"></script>
<script src="https://plugin.s.ancii.com/jqueryvalidation/jquery-validation-1.14.0/dist/localization/messages_zh.js"></script>
<script>
jQuery(function() {
  $.mockjax({
    url: "login.action",
    response: function(settings) {
      var user = settings.data.match(/user=(.+?)($|&)/)[1],
        password = settings.data.match(/password=(.+?)($|&)/)[1];
      if (password !== "foobar") {
        this.responseText = "Your password is wrong (must be foobar).";
        return;
      }
      this.responseText = "Hi " + user + ", welcome back.";
    },
    responseStatus: 200,
    responseTime: 500
  });

// show a simple loading indicator
  var loader = jQuery('<div id="loader"><img src="images/loading.gif" alt="loading..."></div>')
    .css({
      position: "relative",
      top: "1em",
      left: "25em",
      display: "inline"
    })
    .appendTo("body")
    .hide();
  jQuery().ajaxStart(function() {
    loader.show();
  }).ajaxStop(function() {
    loader.hide();
  }).ajaxError(function(a, b, e) {
    throw e;
  });

var v = jQuery("#form").validate({
    submitHandler: function(form) {
      jQuery(form).ajaxSubmit({
        target: "#result"
      });
    }
  });

jQuery("#reset").click(function() {
    v.resetForm();
  });
});
</script>

</head>
<body>

<form method="post" class="cmxform" id="form" action="form-action.php">
  <fieldset>
    <legend>登录表单（输入 "foobar" 作为密码）</legend>
    <p>
      <label for="user">用户名</label>
      <input id="user" name="user" title="请输入您的用户名（至少 3 个字符）" class="required" minlength="3" />
    </p>
    <p>
      <label for="pass">密码</label>
      <input type="password" name="password" id="password" class="required" minlength"5" />
    </p>
    <p>
      <input class="submit" type="submit" value="登录"/>
    </p>
  </fieldset>
</form>

<br/>

<button id="reset">重置上面的表单！</button>

</div>

</body>
</html>