jquery validate进行 ajax 提交

<script type="text/javascript" src="__PUBLIC__/home/js/static/jquery.min.js"></script>
<script type="text/javascript" src="__PUBLIC__/home/js/plugin/jquery.validate.min.js"></script>

<form action="" id="testform">
                    <input type="text" id="LOAN_NAME" placeholder="姓名" maxlength="5" class="fl" name="LOAN_NAME">
                    <div class="status"></div>
                    <input type="text" id="LOAN_PHONE_NUM" placeholder="电话号码" maxlength="11"
                           onkeyup="value=value.replace(/[^\d]/g,'')" class="fl" name="LOAN_PHONE_NUM">
                    <input type="submit" id="cmt_loan" value="提 交" class="fl">
                    <div class="tip-error fl" id="ts_div" style="display: none">
                        <i class="img-jr-tip2"></i><span class="txt" id="ts_span"></span>
                    </div>
                </form>









$("#testform").validate({
        rules: {
            LOAN_NAME: {
                required: true
            },
            LOAN_PHONE_NUM: {
                required: true
            }

        },
        messages: {
            LOAN_NAME: {
                required: '请输入真实的姓名'
            },
            LOAN_PHONE_NUM: {
                required: '请输入11位以内的号码'
            }
        },
        submitHandler: function () {

            if ($("#testform").valid()) {

                var formObj = new Object();
                formObj['LOAN_NAME'] = $("#LOAN_NAME").val().trim();
                formObj['LOAN_PHONE_NUM'] = $("#LOAN_PHONE_NUM").val().trim();
                $.ajax({
                    url: "{:U('/Home/Index/loan_client')}",
                    type: "put",
                    data: {'formData': formObj},
                    async: false,
                    success: function (datas) {
                        if (datas.error_code == 2004) {
                            layer.alert('您的姓名和电话号码已经登记！', {
                                icon: 1,
                                title: false,
                                skin: 'success-pop'
                            })
                        } else if (datas.error_code == 3011) {
                            layer.alert('当前手机号码的用户已经登记！', {
                                icon: 1,
                                title: false,
                                skin: 'success-pop'
                            })
                        } else {

                            // 成功失败弹窗
                            layer.alert('提交成功', {
                                icon: 1,
                                title: false,
                                skin: 'success-pop'
                            })
                        }

                        $("#LOAN_NAME").val('');
                        $("#LOAN_PHONE_NUM").val('');
                        $("#ts_div").attr('style', 'display:none');
                    }
                });
            }
        }
    });