這個是一個layui省市區三級聯動插件，近來使用layui後臺模板框架開發後臺系統，要用到省市縣/區三級聯動，本想從網上找個現成的輪子，然沒有自己想要的需求，就自己造了個。
本插件實現省市區相應數據通過ajax動態從服務端加載數據，省市區數據結構key-value形式。
html示例：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="format-detection" content="telephone=no">
<link rel="stylesheet" href="./layui/css/layui.css" />
</head>
<body>
<div class="layui-form">
<div class="layui-input-inline">
<select name="province" lay-filter="province" class="province">
<option value="">請選擇省</option>
</select>
</div>
<div class="layui-input-inline">
<select name="city" lay-filter="city" disabled>
<option value="">請選擇市</option>
</select>
</div>
<div class="layui-input-inline">
<select name="area" lay-filter="area" disabled>
<option value="">請選擇縣/區</option>
</select>
</div>
</div>
</body>
<script type="text/javascript" src="./layui/layui.js"></script>
<script type="text/javascript">
layui.config({
base : "./layuiarea/" //layuiarea.js的路徑
}).use([ 'layer', 'jquery', "layuiarea" ], function() {
var layer = layui.layer, $ = layui.jquery, layuiarea = layui.layuiarea();
});
</script>
<html>
說明： 如只想顯示二級聯動，可將以下代碼註釋
<div class="layui-input-inline">
<select name="area" lay-filter="area" disabled>
<option value="">請選擇縣/區</option>
</select>
</div>
js示例
layui.define(["form","jquery"],function(exports){
var form = layui.form,
$ = layui.jquery,
Layuiarea = function(){};
Layuiarea.prototype.provinces = function() {
//加載省數據
var proHtml = '',that = this;
//這裏更換成你自己的url
$.get("https://xxxxxxx/test2/area.php?type=0&id=0", function (data) {
var dataObj = eval(data);
$.each(dataObj,function(idx,item){
proHtml += '<option value="' + item.code + '">' + item.name + '</option>';
});
//初始化省數據
$("select[name=province]").append(proHtml);
form.render();//更新 所在容器內的全部表單狀態
form.on('select(province)', function (proData) {
$("select[name=city]").html('<option value="">請選擇市</option>');
var value = proData.value;
if (value > 0) {
//這裏更換成你自己的url
$.get("https://xxxxxxxx/test2/area.php?type=1&id="+value, function (data) {
var ciHtml='';
var dataObj = eval(data);
$.each(dataObj,function(idx,item){
ciHtml += '<option value="' + item.code + '">' + item.name + '</option>';
});
//加載市
$("select[name=city]").append(ciHtml).removeAttr("disabled");
form.render();
});
} else {
$("select[name=city]").attr("disabled", "disabled");
}
});
form.on('select(city)', function (cityData) {
$("select[name=area]").html('<option value="">請選擇縣/區</option>');
var value = cityData.value;
if (value > 0) {
//這裏更換成你自己的url
$.get("https://xxxxxxxxx/test2/area.php?type=2&id="+value, function (data) {
var areaHtml='';
var dataObj = eval(data);
$.each(dataObj,function(idx,item){
areaHtml += '<option value="' + item.code + '">' + item.name + '</option>';
});
//加載縣區
$("select[name=area]").append(areaHtml).removeAttr("disabled");
form.render();
});
} else {
$("select[name=area]").attr("disabled", "disabled");
}
});
})
}
var layuiarea = new Layuiarea();
exports("layuiarea",function(){
layuiarea.provinces();
});
})
php示例
<?php
$id = $_GET['id'] ?? 0;
$type = $_GET['type'] ?? 0;//
if(!$type){
$data = [0 => [['code' => 110000, 'name' => '北京'],
//其他省...
['code' => 130000, 'name' => "河北"],],
130100=>[['code' => 130102, 'name' => '長安區'],],
110000=>[['code' => 110101, 'name' => '東城區'],],
130400=>[['code' => 130402, 'name' => '邯山區'],],
];
}elseif($type==1){
//市
$data = [ 110000 => [['code' => 110000, 'name' => "北京"]],
130000 => [['code' => 130100, 'name' => '石家莊'], ['code' => 130400, 'name' => "邯鄲"]],
];
}else{
//區
$data = [
130100=>[['code' => 130102, 'name' => '長安區'],],
110000=>[['code' => 110101, 'name' => '東城區'],],
130400=>[['code' => 130402, 'name' => '邯山區'],],
];
}
echo json_encode($data[$id], JSON_UNESCAPED_UNICODE);
預覽地址：https://demo.duiniya.com/test2/demo.html
項目地址：https://github.com/guyan0319/layuiarea
如有任何問題或建議，歡迎批評指正！