模块init函数最多接受6个参数版本1.0
第一个 定义三级联动dom的外层div(必填)
第二个 定义了三级联联动请求的后台接口 也可以写本地接口 返回的json形式参考上面的json的代码块标注
第三个 定义三级联动的标题 如果想每个select框有自己的标题 请修改js代码里面的dom结构(必填)
第四个 定义了第一个select默认的value 填对应的id(可不填)
第五个 定义了第二个select默认的value 填对应的id(可不填)
第六个 定义了第三个select默认的value 填对应的id(可不填)
1.0百度网盘下载地址(接受6个参数不可复用无返回值)
链接: https://pan.baidu.com/s/1f-juQ_K51ZnZrLWoWKnvVQ 提取码: 5yff
模块init函数最多接受9个参数版本2.0
第一个 定义三级联动dom的外层div(必填)
第二个 定义了三级联联动请求的后台接口 也可以写本地接口 返回的json形式参考上面的json的代码块标注
第三个 定义三级联动的标题 如果想每个select框有自己的标题 请修改js代码里面的dom结构(必填)
第四个 定义第一级select的id以便创建多个联动(必填)
第五个 定义第二级select的id以便创建多个联动(必填)
第六个 定义第三级select的id以便创建多个联动(必填)
第七个 定义了第一个select默认的value 填对应的id(可不填)
第八个 定义了第二个select默认的value 填对应的id(可不填)
第九个 定义了第三个select默认的value 填对应的id(可不填)
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不带默认参数的效果
带默认参数的效果
html部分!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>layui</title>
<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">
<link rel="stylesheet" href="layui/css/layui.css" media="all">
<link rel="stylesheet" href="css/bootstrap.css" />
<!-- 注意：如果你直接复制所有代码到本地，上述css路径需要改成你本地的 -->
</head>
<body>
<div id="main"></div>
<script src="layui/layui.js" charset="utf-8"></script>
<script src="js/jquery.js"></script>
<script>
//设置模块
layui.config({
base:'js/'
}).use(['test','jquery','form','layedit'], function(){
var test = layui.test,
$ = layui.jquery,
form = layui.form;
layedit = layui.layedit;
//传参
// 1.三级联动要放到的div
// 2.接口地址 可写本地接口和网络接口
// 3.三级联动的表头字
// 4.三级联动第一级默认值id
// 5.三级联动第二级默认值id
// 6.三级联动第三级默认值id
test.init('main','http://localhost:3000/data','三级联动',3,32,321);
form.render();
});
</script>
</body>
</html>
layui.define(["jquery","layer",'form','layedit'], function(exports) {var $ = layui.jquery,layer = layui.layer,form = layui.form,layedit = layui.layedit;var ZHC_Category = {//init:function(ID,URL,NAME,Default1,Default2,Default3){//定义dom结构$("#" ID "").append(`<form class="layui-form" action=""><div class="layui-inline"><div class="layui-form-item"> <label class="layui-form-label" style="width:120px">${NAME}</label> <div class="layui-input-inline"> <select name="province" id="province" lay-filter="yiji"> <option value="请选择">请选择</option> </select> </div> <div class="layui-input-inline"> <select name="city" id="city" lay-filter="erji"> <option value="请选择">请选择</option> </select> </div> <div class="layui-input-inline"> <select name="town" id="town" lay-filter="sanji"> <option value="请选择">请选择</option> </select> </div></div></div></form>`);//渲染数据var province=$("#province"),city=$("#city"),town=$("#town");var provinceList;var two;//getJSON获取本地json$.getJSON("" URL "",function(data){console.log(data)provinceList = data;//一级默认选择for(var i=0;i<provinceList.length;i ){ if(Default1!=provinceList[i].id){ addEle(province,provinceList[i].name); }else if(Default1==provinceList[i].id){ var optionStr1=""; optionStr1="<option value=" provinceList[i].name " selected=''>" provinceList[i].name "</option>"; province.append(optionStr1); form.render(); //二级默认选择 for(var j=0;j<provinceList[i].cityList.length;j ){ if(Default2!=provinceList[i].cityList[j].id){ addEle(city,provinceList[i].cityList[j].name); }else if(Default2==provinceList[i].cityList[j].id){ var optionStr2=""; two = j; optionStr2="<option value=" provinceList[i].cityList[j].name " selected=''>" provinceList[i].cityList[j].name "</option>"; city.append(optionStr2); form.render(); //三级默认选择 if(Default3!=undefined||Default3!=null){ for(var k=0;k<provinceList[i].cityList[j].areaList.length;k ){ if(Default3!=provinceList[i].cityList[j].areaList[k].id){ var optionStr3=""; optionStr3="<option value=" provinceList[i].cityList[j].areaList[k].name ">" provinceList[i].cityList[j].areaList[k].name "</option>"; town.append(optionStr3); form.render();}else if(Default3==provinceList[i].cityList[j].areaList[k].id){ var optionStr3=""; optionStr3="<option value=" provinceList[i].cityList[j].areaList[k].name " selected=''>" provinceList[i].cityList[j].areaList[k].name "</option>"; town.append(optionStr3); form.render();} } } } } }}function addEle(ele,value){console.log(value); var optionStr=""; optionStr="<option value=" value ">" value "</option>"; ele.append(optionStr);}function removeEle(ele){ ele.find("option").remove(); var optionStar="<option value=" "请选择" ">" "请选择" "</option>"; ele.append(optionStar);}var provinceText,cityText,cityItem;//如果一级默认默认赋值 监听一级的value给二级if(Default1!=undefined||Default1!=null){var provinceText = Default1;console.log("一级默认"); $.each(provinceList,function(i,item){ if(provinceText == item.id){ cityItem=i; return cityItem } });}//监听一级选项form.on('select(yiji)',function(data){var provinceText = data.value;console.log("一级变化"); $.each(provinceList,function(i,item){ if(provinceText == item.name){ cityItem=i; return cityItem } }); removeEle(city); removeEle(town); $.each(provinceList[cityItem].cityList,function(i,item){ addEle(city,item.name) }) form.render();})//如果二级默认默认赋值 监听二级的value给三级if(Default3==undefined||Default3==null){if(Default2!=undefined||Default2!=null){//默认值var cityText = Default2;console.log("二级默认");$.each(provinceList,function(i,item){ if(provinceText == item.id){ cityItem=i; return cityItem } }); $.each(provinceList[cityItem].cityList[two].areaList,function(i,item){ addEle(town,item.name) })}}//监听二级选项form.on('select(erji)',function(data){var cityText = data.value;console.log('二级变化');removeEle(town); $.each(provinceList,function(i,item){ if(provinceText == item.id){ cityItem=i; return cityItem } }); console.log(cityItem); $.each(provinceList[cityItem].cityList,function(i,item){ if(cityText == item.name){ for(var n=0;n<item.areaList.length;n ){ console.log(item.areaList[n].name); addEle(town,item.areaList[n].name) } } }); form.render();})form.render();})}}exports('test', ZHC_Category);});模拟后台代码{ "data":[ { "id":1, "name":"北京", "cityList": [ { "id":11, "name":"市辖区", "areaList":[ { "id":111, "name":"东城区" }, { "id":112, "name":"西城区" }, { "id":113, "name":"怀柔区" }, { "id":114, "name":"平谷区" } ] }, { "id":12, "name":"县", "areaList":[ { "id":121, "name":"密云县" }, { "id":131, "name":"延庆县" } ] } ] }, { "id":2, "name":"上海", "cityList":[ { "id":21, "name":"市辖区", "areaList":[ { "id":211, "name":"黄浦区" }, { "id":212, "name":"卢湾区" }, { "id":213, "name":"长宁区" }, { "id":214, "name":"静安区" }, { "id":215, "name":"普陀区" }, { "id":216, "name":"宝山区" }, { "id":217, "name":"虹口区" }, { "id":217, "name":"青浦区" }, { "id":219, "name":"南汇区" } ] }, { "id":22, "name":"县", "areaList":[ { "id":221, "name":"崇明县" } ] } ] }, { "id":3, "name":"天津", "cityList":[ { "id":31, "name":"市辖区", "areaList":[ { "id":311, "name":"和平区" }, { "id":312, "name":"河东区" }, { "id":313, "name":"河西区" }, { "id":314, "name":"南开区" }, { "id":315, "name":"河北区" } ] }, { "id":32, "name":"县", "areaList":[ { "id":321, "name":"宁河县" }, { "id":322, "name":"静海县" }, { "id":323, "name":"蓟 县" } ] } ] }, { "id":4, "name":"重庆", "cityList":[ { "id":41, "name":"市辖区", "areaList":[ { "id":411, "name":"万州区" }, { "id":412, "name":"涪陵区" }, { "id":413, "name":"渝中区" }, { "id":414, "name":"大渡口区" }, { "id":415, "name":"江北区" } ] }, { "id":42, "name":"县", "areaList":[ { "id":421, "name":"綦江县" }, { "id":422, "name":"潼南县" }, { "id":423, "name":"彭水苗族土家族自治县" } ] }, { "id":43, "name":"市", "areaList":[ { "id":431, "name":"江津市" }, { "id":432, "name":"合川市" } ] } ] }]}
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