layui实现三级联动效果

本文实例为大家分享了layui实现三级联动效果的具体代码，供大家参考，具体内容如下

 
  
   
   
   
   
   
   
   
   
  
  
   
    
     
     请选择省 
     
    
    
     
     请选择市 
     
    
    
     
     请选择县/区 
     
    
   
  
  
  
  
 

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 += '' + pro[i].name + '';
   } 
   //初始化省数据 
   $("select[name=province]").append(proHtml); 
   form.render(); 
   form.on('select(province)', function (proData) {
 
 
    $("select[name=area]").html('请选择县/区');
    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 = '请选择市',that = this; 
  for (var i = 0; i < citys.length; i++) { 
   cityHtml += '' + citys[i].name + ''; 
  } 
  $("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 = '请选择县/区'; 
  for (var i = 0; i < areas.length; i++) { 
   areaHtml += '' + areas[i].name + ''; 
  } 
  $("select[name=area]").html(areaHtml).removeAttr("disabled"); 
  form.render(); 
 } 
 
 var address = new Address(); 
 exports("address",function(){ 
  address.provinces(); 
 }); 
}); 

ajax ->PHP 后台

  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：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。