省市级联jquery和jsp

    //province.js文件

    /*
        省市级联
    */ 
   $._cityInfo = [{"n":"北京市","c":["北京市"]},
{"n":"天津市","c":["天津市"]},
{"n":"上海市","c":["上海市"]},
{"n":"重庆市","c":["重庆市"]},
{"n":"河北省","c":["石家庄市","唐山市","秦皇岛市","邯郸市","邢台市","保定市","张家口市","承德市","沧州市","廊坊市","衡水市"]},
{"n":"山西省","c":["太原市","大同市","阳泉市","长治市","晋城市","朔州市","晋中市","运城市","忻州市","临汾市","吕梁市"]},
{"n":"辽宁省","c":["沈阳市","大连市","鞍山市","抚顺市","本溪市","丹东市","锦州市","营口市","阜新市","辽阳市","盘锦市","铁岭市","朝阳市","葫芦岛市"]},
{"n":"吉林省","c":["长春市","吉林市","四平市","辽源市","通化市","白山市","松原市","白城市","延边朝鲜族自治州"]},
{"n":"黑龙江省","c":["哈尔滨市","齐齐哈尔市","鹤岗市","双鸭山市","鸡西市","大庆市","伊春市","牡丹江市","佳木斯市","七台河市","黑河市","绥化市","大兴安岭地区"]},
{"n":"江苏省","c":["南京市","无锡市","徐州市","常州市","苏州市","南通市","连云港市","淮安市","盐城市","扬州市","镇江市","泰州市","宿迁市"]},
{"n":"浙江省","c":["杭州市","宁波市","温州市","嘉兴市","湖州市","绍兴市","金华市","衢州市","舟山市","台州市","丽水市"]},
{"n":"安徽省","c":["合肥市","芜湖市","蚌埠市","淮南市","马鞍山市","淮北市","铜陵市","安庆市","黄山市","滁州市","阜阳市","宿州市","巢湖市","六安市","亳州市","池州市","宣城市"]},
{"n":"福建省","c":["福州市","厦门市","莆田市","三明市","泉州市","漳州市","南平市","龙岩市","宁德市"]},
{"n":"江西省","c":["南昌市","景德镇市","萍乡市","九江市","新余市","鹰潭市","赣州市","吉安市","宜春市","抚州市","上饶市"]},
{"n":"山东省","c":["济南市","青岛市","淄博市","枣庄市","东营市","烟台市","潍坊市","济宁市","泰安市","威海市","日照市","莱芜市","临沂市","德州市","聊城市","滨州市","荷泽市"]},
{"n":"河南省","c":["郑州市","开封市","洛阳市","平顶山市","安阳市","鹤壁市","新乡市","焦作市","濮阳市","许昌市","漯河市","三门峡市","南阳市","商丘市","信阳市","周口市","驻马店市"]},
{"n":"湖北省","c":["武汉市","黄石市","十堰市","宜昌市","襄樊市","鄂州市","荆门市","孝感市","荆州市","黄冈市","咸宁市","随州市","恩施土家族苗族自治州","仙桃市","潜江市","天门市","神农架林区"]},
{"n":"湖南省","c":["长沙市","株洲市","湘潭市","衡阳市","邵阳市","岳阳市","常德市","张家界市","益阳市","郴州市","永州市","怀化市","娄底市","湘西土家族苗族自治州"]},
{"n":"广东省","c":["广州市","深圳市","珠海市","汕头市","韶关市","佛山市","江门市","湛江市","茂名市","肇庆市","惠州市","梅州市","汕尾市","河源市","阳江市","清远市","东莞市","中山市","潮州市","揭阳市","云浮市"]},
{"n":"甘肃省","c":["兰州市","金昌市","白银市","天水市","嘉峪关市","武威市","张掖市","平凉市","酒泉市","庆阳市","定西市","陇南市","临夏回族自治州","甘南藏族自治州"]},
{"n":"四川省","c":["成都市","自贡市","攀枝花市","泸州市","德阳市","绵阳市","广元市","遂宁市","内江市","乐山市","南充市","眉山市","宜宾市","广安市","达州市","雅安市","巴中市","资阳市","阿坝藏族羌族自治州","甘孜藏族自治州","凉山彝族自治州"]},
{"n":"贵州省","c":["贵阳市","六盘水市","遵义市","安顺市","铜仁地区","毕节地区","黔西南布依族苗族自治州","黔东南苗族侗族自治州","黔南布依族苗族自治州"]},
{"n":"海南省","c":["海口市","三亚市","五指山市","琼海市","儋州市","文昌市","万宁市","东方市","澄迈县","定安县","屯昌县","临高县","白沙黎族自治县","昌江黎族自治县","乐东黎族自治县","陵水黎族自治县","保亭黎族苗族自治县","琼中黎族苗族自治县"]},
{"n":"云南省","c":["昆明市","曲靖市","玉溪市","保山市","昭通市","丽江市","思茅市","临沧市","楚雄彝族自治州","红河哈尼族彝族自治州","文山壮族苗族自治州","西双版纳傣族自治州","大理白族自治州","德宏傣族景颇族自治州","怒江傈僳族自治州","迪庆藏族自治州"]},
{"n":"青海省","c":["西宁市","海东地区","海北藏族自治州","黄南藏族自治州","海南藏族自治州","果洛藏族自治州","玉树藏族自治州","海西蒙古族藏族自治州"]},
{"n":"陕西省","c":["西安市","铜川市","宝鸡市","咸阳市","渭南市","延安市","汉中市","榆林市","安康市","商洛市"]},
{"n":"广西壮族自治区","c":["南宁市","柳州市","桂林市","梧州市","北海市","防城港市","钦州市","贵港市","玉林市","百色市","贺州市","河池市","来宾市","崇左市"]},
{"n":"西藏自治区","c":["拉萨市","昌都地区","山南地区","日喀则地区","那曲地区","阿里地区","林芝地区"]},
{"n":"内蒙古自治区","c":["呼和浩特市","包头市","乌海市","赤峰市","通辽市","鄂尔多斯市","呼伦贝尔市","巴彦淖尔市","乌兰察布市","兴安盟","锡林郭勒盟","阿拉善盟"]},
{"n":"新疆维吾尔自治区","c":["乌鲁木齐市","克拉玛依市","吐鲁番地区","哈密地区","和田地区","阿克苏地区","喀什地区","克孜勒苏柯尔克孜自治州","巴音郭楞蒙古自治州","昌吉回族自治州","博尔塔拉蒙古自治州","伊犁哈萨克自治州","塔城地区","阿勒泰地区","石河子市","阿拉尔市","图木舒克市","五家渠市"]},
{"n":"宁夏回族自治区","c":["银川市","石嘴山市","吴忠市","固原市","中卫市"]}];

$.initProv = function(prov, city, defaultProv, defaultCity) {
    var provEl = $(prov);
    var cityEl = $(city);
   
    var hasDefaultProv = (typeof(defaultCity) != 'undefined');
   
    var provHtml = '';
   
    provHtml += '<option value="-1">请选择</option>';
    for(var i = 0; i < $._cityInfo.length; i++) {
        provHtml += '<option value="' + i + '"' + ((hasDefaultProv && (i == defaultProv)) ? ' selected="selected"' : '') + '>' + $._cityInfo[i].n + '</option>';
    }
    provEl.html(provHtml);
    $.initCities(provEl, cityEl, defaultCity);
    provEl.change(function() {
        $.initCities(provEl, cityEl);
    });
};

$.initCities = function(provEl, cityEl, defaultCity) {
    var hasDefaultCity = (typeof(defaultCity) != 'undefined');
    if(provEl.val() != '' && parseInt(provEl.val()) >= 0) {
        var cities = $._cityInfo[parseInt(provEl.val())].c;
        var cityHtml = '';
       
        cityHtml += '<option value="-1">请选择</option>';
        for(var i = 0; i < cities.length; i++) {
            cityHtml += '<option value="' + i + '"' + ((hasDefaultCity && (i == defaultCity)) ? ' selected="selected"' : '') + '>' + cities[i] + '</option>';
        }
        cityEl.html(cityHtml);
    } else {
        cityEl.html('<option value="-1">请选择</option>');
    }
};
  

/**
 * 获得省份id对应的省份名称
 * @author panguixiang
 * @param prov
 * @param city
 * @param defaultProv
 * @param defaultCity
 */
$.initProvStr = function(prov, city, defaultProv, defaultCity) {
    var provEl = $(prov);
    var cityEl = $(city);
    var provHtml = '';
   
    for(var i = 0; i < $._cityInfo.length; i++) {
        if(i == defaultProv) {
            provHtml += $._cityInfo[i].n;
        }
    }
    provEl.html(provHtml);
    $.initCitiesStr(defaultProv, cityEl, defaultCity);
};

/**
 * 获得省份id及城市ID对应的城市名称
 * @author panguixiang
 * @param prov
 * @param city
 * @param defaultProv
 * @param defaultCity
 */
$.initCitiesStr = function(defaultProv, cityEl, defaultCity) {
        var cities = $._cityInfo[defaultProv].c;//此处要用页面端传进来的省份ID直接从省份数组中遍历城市
        var cityHtml = '';
        for(var i = 0; i < cities.length; i++) {
            if(i == defaultCity){
                cityHtml +=cities[i];
            }
        }
        cityEl.html(cityHtml);
};

    //调用js文件

<script class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="<%=request.getContextPath()%>/js/jquery.js"></script>
    <!-- 省市级联 -->
 <script class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="<%=request.getContextPath()%>/js/admin/province.js"></script> 
<script type="text/javascript">
  $(document).ready(function(){ 
        //获得商户注册时的默认省市值 
        $.initProv("#provinceId", "#cityId", '${merchant.provinceId}', '${merchant.cityId}'); 
    }); 
  </script>

    <tr>
            <td width="207" align="right" class="gray no_left_border">请选择详细区域<span
            class="red">*</span></td>
                <td width="566" class="no_right_border">
                <select name="provinceId" id="provinceId" class="drop_list"></select>
                <select name="cityId" id="cityId" class="drop_list"></select>
                     <span id="spname"></span></td>
                        </tr>