省市區三級聯動純js

<script src="${ctxPath!}/static/common/js/city.js"></script>

<select  lay-ignore id="province" name="province" class="selectpicker" data-live-search="true" data-size="10"></select>
<select lay-ignore id="city" name="city" class="selectpicker" data-live-search="true" data-size="10"></select></div>
<select  lay-ignore id="area" name="area" class="selectpicker" data-live-search="true" data-size="10"></select></div>

region_init('province','city','area','北京市', '北京市', '東城區');

region_init('省id','市id','區id','默認', '默認', '默認');

要添加city.js文件