<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta content="webkit"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta content="width=device-width, initial-scale=1, maximum-scale=1"> <meta content="black"> <meta content="yes"> <meta content="telephone=no"> <link href="https://www.jb51.net/src/css/layui.css" /> </head> <body> <div> <div> <select lay-filter="province"> <option value="">请选择省</option> </select> </div> <div> <select lay-filter="city" disabled> <option value="">请选择市</option> </select> </div> <div> <select lay-filter="area" disabled> <option value="">请选择县/区</option> </select> </div> </div> </body> <script type="text/javascript" src="https://www.jb51.net/src/layui.js"></script> <script type="text/javascript" src="https://www.jb51.net/src/address.js"></script> <script type="text/javascript"> layui.config({ base : "src/" //address.js的路径 }).use([ 'layer', 'jquery', "address" ], function() { var layer = layui.layer, $ = layui.jquery, address = layui.address(); }); </script> <html>
JS:address.js
layui.define(["form","jquery"],function(exports){ var form = layui.form, $ = layui.jquery, Address = function(){}; Address.prototype.provinces = function() { //加载省数据 var proHtml = '',that = this; $.get("area",{code:'',type:1}, function (pro) { for (var i = 0; i < pro.length; i++) { proHtml += '<option value="' + pro[i].code + '">' + pro[i].name + '</option>'; } //初始化省数据 $("select[name=province]").append(proHtml); form.render(); form.on('select(province)', function (proData) { $("select[name=area]").html('<option value="">请选择县/区</option>'); var value = proData.value; if (value > 0) { $.post('area',{code:value,type:2},function (val) { //console.log(val.length) ; that.citys(val) ; },"json"); //that.citys(pro[$(this).index() - 1].childs); } else { $("select[name=city]").attr("disabled", "disabled"); } }); },'json'); } //加载市数据 Address.prototype.citys = function(citys) { var cityHtml = '<option value="">请选择市</option>',that = this; for (var i = 0; i < citys.length; i++) { cityHtml += '<option value="' + citys[i].code + '">' + citys[i].name + '</option>'; } $("select[name=city]").html(cityHtml).removeAttr("disabled"); form.render(); form.on('select(city)', function (cityData) { var value = cityData.value; if (value > 0) { $.post('area',{code:value,type:3},function (area) { that.areas(area) ; },"json"); //that.areas(citys[$(this).index() - 1].childs); } else { $("select[name=area]").attr("disabled", "disabled"); } }); } //加载县/区数据 Address.prototype.areas = function(areas) { var areaHtml = '<option value="">请选择县/区</option>'; for (var i = 0; i < areas.length; i++) { areaHtml += '<option value="' + areas[i].code + '">' + areas[i].name + '</option>'; } $("select[name=area]").html(areaHtml).removeAttr("disabled"); form.render(); } var address = new Address(); exports("address",function(){ address.provinces(); }); });
ajax ->PHP 后台
/** * 地区三级联动 */ public function areaAction(){ $code = $this->sys_getparam('code' ) ; // 获取省市区数据 $type = $this->sys_getparam('type' ) ; if($type==1){ //省 $sql = " SELECT id AS code,province AS name FROM a_province ; " ; } if($type==2){ //市 $sql = " SELECT id AS code,city AS name FROM a_city WHERE province_id= $code ; " ; } if($type==3){ //区 $sql = " SELECT id AS code,district AS name FROM a_district WHERE city_id= $code ; " ; } $areaData = app::dbload($sql,'all'); echo json_encode($areaData) ; }
效果：
