ajax三级联动：
三级联动加载省市县 function queryProvince(target){ $(target).html(""); $(target).append('<option value="0">请选择</option>'); $.ajax({ async: false, dataType: "json", type: 'POST', url: "select/queryProvince", data: {}, success: function(data){ if(data && data.length > 0){ for(var i=0,len=data.length; i<len; i++){ var option= $('<option value="'+data[i].id+'">'+data[i].area_designation+'</option> '); $(target).append(option); } } } }); } function queryCity(target,province_id){ $(target).html(""); if (province_id != 10 && province_id != 11 && province_id != 18 && province_id != 31) { $(target).append('<option value="-1">请选择</option>'); } $.ajax({ async: false, dataType: "json", type: 'POST', url: "select/queryCityByProvinceId", data: {province_id:province_id}, success: function(data){ if(data && data.length > 0){ for(var i=0,len=data.length; i<len; i++){ var option= $('<option value="'+data[i].id+'">'+data[i].area_designation+'</option> '); $(target).append(option); } } } }); } function queryCounty(target,city_id){ $(target).html(""); $(target).append('<option value="0">不限</option>'); $.ajax({ async: false, dataType: "json", type: 'POST', url: "select/queryCountyByCityId", data: {city_id:city_id}, success: function(data){ if(data && data.length > 0){ for(var i=0,len=data.length; i<len; i++){ var option= $('<option value="'+data[i].id+'">'+data[i].area_designation+'</option> '); $(target).append(option); } } } }); }