form表单ajaxSubmit提交并验证

html:

<form class="register-form" action="{:U('')}" method="post">
          <span class="error"></span>
            <div class="p"><input type="text" class="input_text user_name" placeholder="请输入通行证账号，6—16位字符" name="username"></div>
            <div class="p"><input type="password" class="input_text pass_word" placeholder="请设置6-16位密码，不区分大小写" name="password"></div>
            <div class="p">
              <div class="unlock">
                  <div class="slideunlock" disabled>立即注册</button></div>
          </form>

jquery：

$(function(){
      /*js验证*/
      $(".register-form").resetForm();
      //注册表单验证
      $(".register-form").validate({
            rules :{
                'username':{
                  required:true,
                  rangelength: [5,16],
                  isUserName:true,
                  remote:"{:U('')}"
                },
                password:{required:true,minlength:6,maxlength:18}
            },
            messages :{
              'username':{required:"请输入用户名",rangelength:"用户名必须在5-16个字符之间",remote:"用户名被占用"},
              password:{required:"请输入密码",minlength: "密码不能少于6个字符",maxlength: "密码不能大于18个字符"}
            },
            errorPlacement: function(error, element) {
              //错误信息显示到最后面
              $("span.error").html(error);
           },
           success: function(label) {
              $("span.error").html("").removeClass("error");
           },
           submitHandler: function(form) {
              $(form).ajaxSubmit({
                  type: 'post', // 提交方式 get/post
                  url:$(form).attr("action"),
                  success: function(data) {
                  // data 保存提交后返回的数据，一般为 json 数据
                      // 此处可对 data 作相关处理
                      //alert(data.status);
                      if(data.status){
                        alert(data.info);
                        $(form).resetForm();
                      } else {
                        alert(data.info);
                        $(form).resetForm();
                        //刷新验证码
                      }
                  }
              });
              $(form).resetForm(); // 提交后重置表单
              return false;
            }
      });

});