HTML 部分
<form onsubmit="return false;"action="__SELF__"data-auto="true"method="post"class='form-horizontal layui-form' style='padding-top:20px'><input type="hidden"name="id"value="{:input('id')}"/><div class="form-group"><label class="col-sm-2 control-label">期刊</label><div class='col-sm-3'><select name="magazine"placeholder="请选择期刊"lay-filter="magazine"><option value="">请检索关键词或选择</option>{volist name="$magazines" id="magazine"}<option value="{$magazine.id}">{$magazine.name}</option>{/volist}</select></div><div class="col-sm-3"><select name="publish"id="publish"><option value=""></option></select></div></div><div class="hr-line-dashed"></div><div class="col-sm-8 col-sm-offset-2"><div class="layui-form-item text-center"><button class="layui-btn"type="submit">提交数据</button></div></div></form>
<script>layui.use('form', function(){var form =layui.form; form.on('select(magazine)', function(data){var areaId=data.elem.value; $.ajax({ type: 'POST', url: "{:url('getPublish')}", data: {areaId:areaId}, dataType: 'json', success:function(e){ console.log(e.data);//empty() 方法从被选元素移除所有内容 $("select[name='publish']").empty();var html = "<option value='0'>选择期数</option>"; $(e.data).each(function(v, k) { html += "<option value='" + k.id + "'>" + k.title + "</option>"; });//把遍历的数据放到select表里面 $("select[name='publish']").append(html);//从新刷新了一下下拉框 form.render('select'); //重新渲染} }); }); }); </script>