不需要访问后台服务器端,不使用Ajax,无刷新,纯JS实现的省市区三级联动。
当省市区数据变动是只需调正js即可。
使用方法:
<!DOCTYPE html>
<html><head><title>纯JS省市区联动</title><script type="text/javascript" src="jsAddress.js"></script></head><body><div>省:<select id="cmbProvince"></select>市:<select id="cmbCity"></select>区:<select id="cmbArea"></select><br /><br />省:<select id="Select1"></select>市:<select id="Select2"></select>区:<select id="Select3"></select><script type="text/javascript">addressInit('cmbProvince', 'cmbCity', 'cmbArea', '陕西', '宝鸡市', '金台区');addressInit('Select1', 'Select2', 'Select3');</script></div></body></html>核心代码如下:
var addressInit = function (_cmbProvince, _cmbCity, _cmbArea, defaultProvince, defaultCity, defaultArea) { var cmbProvince = document.getElementById(_cmbProvince); var cmbCity = document.getElementById(_cmbCity); var cmbArea = document.getElementById(_cmbArea); function cmbSelect(cmb, str) { for ( var i=0; i<cmb.options.length; i++) { if (cmb.options[i].value == str) { cmb.selectedIndex = i; return ; } } } function cmbAddOption(cmb, str, obj) { var option = document.createElement( "OPTION" ); cmb.options.add(option); option.innerHTML = str; option.value = str; option.obj = obj; } function changeCity() { cmbArea.options.length = 0; if (cmbCity.selectedIndex == -1) return ; var item = cmbCity.options[cmbCity.selectedIndex].obj; for ( var i=0; i<item.areaList.length; i++) { cmbAddOption(cmbArea, item.areaList[i], null ); } cmbSelect(cmbArea, defaultArea); } function changeProvince() { cmbCity.options.length = 0; cmbCity.onchange = null ; if (cmbProvince.selectedIndex == -1) return ; var item = cmbProvince.options[cmbProvince.selectedIndex].obj; for ( var i=0; i<item.cityList.length; i++) { cmbAddOption(cmbCity, item.cityList[i].name, item.cityList[i]); } cmbSelect(cmbCity, defaultCity); changeCity(); cmbCity.onchange = changeCity; } for ( var i=0; i<provinceList.length; i++) { cmbAddOption(cmbProvince, provinceList[i].name, provinceList[i]); } cmbSelect(cmbProvince, defaultProvince); changeProvince(); cmbProvince.onchange = changeProvince; } var provinceList = [ {name: '北京' , cityList:[ {name: '市辖区' , areaList:[ '东城区' , '西城区' , '崇文区' , '宣武区' , '朝阳区' , '丰台区' , '石景山区' , '海淀区' , '门头沟区' , '房山区' , '通州区' , '顺义区' , '昌平区' , '大兴区' , '怀柔区' , '平谷区' ]}, {name: '县' , areaList:[ '密云县' , '延庆县' ]} ]}, {name: '上海' , cityList:[ {name: '市辖区' , areaList:[ '黄浦区' , '卢湾区' , '徐汇区' , '长宁区' , '静安区' , '普陀区' , '闸北区' , '虹口区' , '杨浦区' , '闵行区' , '宝山区' , '金山区' , '松江区' , '青浦区' , '南汇区' , '奉贤区' ]}, {name: '县' , areaList:[ '崇明县' ]} ]} ]; |
实例下载: