java json 省市级联实例代码

//     获取国家省市区信息
$(document).ready(function(){

//从程序获取json格式的数据
var info = $request.getattribute("manualorderareainfo");

var provinceinfo = $("#provinceid");
var cityid = $("#cityid");

//清空信息
provinceinfo.empty();

//循环获取信息
$.each(info.area, function(idx,item){
if(idx == 0){
return true;
}
//alert("name:"+idx+",areaid:"+item.areaid+",areaname:"+item.areaname+",areaparentid:"+item.parentid);

//这里父类id为1是城市信息
if(item.parentid == 1){
$("<option value="+item.areaid+">"+item.areaname+"</option>").appendto(provinceinfo);
}
});
//获取对应的城市信息
$("#provinceid").change(function(){
var tempinfo = $("#provinceid").val();
cityid.empty();
$.each(info.area, function(indexinfo,item){
if(indexinfo == 0){
return true;
}
if(item.parentid == tempinfo){
$("<option value="+item.areaid+">"+item.areaname+"</option>").appendto(cityid);
}
});
});
});

<tr>
                    <th style="width:120px;">收货人省份</th>
<!--                    <td style="width:270px;"><input type="text" value="$!{manualentryorder.goodreceiverprovince}" name="manualentryorder.goodreceiverprovince" style="width:150px;"  maxlength="255"/></td>-->
                        <td style="width: 270px;">
                            <select id="provinceid" name="staffprovince" style="width: 154px;">
                            </select>

                        </td>
                    <th style="width:140px;">收货人城市</th>
                    <td style="width:270px;">
<!--                        <input type="text" value="$!{manualentryorder.goodreceivercity}" name="manualentryorder.goodreceivercity" style="width:150px;"  maxlength="255"/>-->
                            <select id="cityid" name="staffprovince" style="width: 154px;">
                                <option value="--">---请选择城市信息---</option>
                            </select>
                    </td>
                </tr>