java+city-picker自定义省市区选择
运用city-picker创建省市区选择。
这里直接附上city-picker的地址http://tshi0912.github.io/city-picker/
方法
导入js文件
原理是通过js调取city-picker.data.js里面的json数据。然后展示输入，json格式如图
86: {
'A-G': [
{code: '340000', address: '安徽省'},
{code: '110000', address: '北京市'},
{code: '500000', address: '重庆市'},
{code: '350000', address: '福建省'},
{code: '620000', address: '甘肃省'},
{code: '440000', address: '广东省'},
{code: '450000', address: '广西壮族自治区'},
{code: '520000', address: '贵州省'}],
'H-K': [
{code: '460000', address: '海南省'},
{code: '130000', address: '河北省'},
{code: '230000', address: '黑龙江省'},
{code: '410000', address: '河南省'},
{code: '420000', address: '湖北省'},
{code: '430000', address: '湖南省'},
{code: '320000', address: '江苏省'},
{code: '360000', address: '江西省'},
{code: '220000', address: '吉林省'}],
'L-S': [
{code: '210000', address: '辽宁省'},
{code: '150000', address: '内蒙古自治区'},
{code: '640000', address: '宁夏回族自治区'},
{code: '630000', address: '青海省'},
{code: '370000', address: '山东省'},
{code: '310000', address: '上海市'},
{code: '140000', address: '山西省'},
{code: '610000', address: '陕西省'},
{code: '510000', address: '四川省'}],
'T-Z': [
{code: '120000', address: '天津市'},
{code: '650000', address: '新疆维吾尔自治区'},
{code: '540000', address: '西藏自治区'},
{code: '530000', address: '云南省'},
{code: '330000', address: '浙江省'}]
},
110000: {
110100: '北京市',
},
110100: {
110101: '东城区',
110102: '西城区',
110105: '朝阳区',
110106: '丰台区',
110107: '石景山区',
110108: '海淀区',
110109: '门头沟区',
110111: '房山区',
110112: '通州区',
110113: '顺义区',
110114: '昌平区',
110115: '大兴区',
110116: '怀柔区',
110117: '平谷区',
110228: '密云县',
110229: '延庆县'
},
120000: {
120100: '天津市'
},
120100: {
120101: '和平区',
120102: '河东区',
120103: '河西区',
120104: '南开区',
120105: '河北区',
120106: '红桥区',
120110: '东丽区',
120111: '西青区',
120112: '津南区',
120113: '北辰区',
120114: '武清区',
120115: '宝坻区',
120116: '滨海新区',
120221: '宁河县',
120223: '静海县',
120225: '蓟县'
},
130000: {
130100: '石家庄市',
130200: '唐山市',
130300: '秦皇岛市',
130400: '邯郸市',
130500: '邢台市',
130600: '保定市',
130700: '张家口市',
130800: '承德市',
130900: '沧州市',
131000: '廊坊市',
131100: '衡水市'
},观察js结构可以得到这里面都是一些树形结构
86:{}里面第一层是选择第二层是省份代码
跟86同层的都是省市的树形结构和市区的树形结构。
这样我们可以从数据库中找出我们需要显示的省市区数据给city-picker
先附上代码：
// 增加省份
PageData tempPd = new PageData();
List provinces = ordersService.listAllProvince(pd);//获取所有的省份
tempPd.put("中国", provinces);
data.put("86", tempPd);
// 增加城市
List citys = ordersService.listAllCity(pd);//获取所有的城市和省份
Map provinceMap = new HashMap<>();
for (PageData index : citys) {
if (provinceMap.get(index.getString("province_Code")) == null) {
Map cityMap = new HashMap<>();
cityMap.put(index.getString("city_Code"), index.getString("city_Name"));
provinceMap.put(index.getString("province_Code"), cityMap);
} else {
((HashMap) provinceMap.get(index.getString("province_Code")))
.put(index.getString("city_Code"), index.getString("city_Name"));
}
}
data.putAll(provinceMap);
// 增加中心
List centers = centerService.listAll(pd);//获取所有中心
Map centerMap = new HashMap<>();
for (PageData index : centers) {
if (index.get("center_City") == null) {
continue;
}
if (centerMap.get(index.getString("center_City")) == null) {
Map center = new HashMap<>();
center.put(String.valueOf(index.get("CENTER_ID")), index.getString("CENTER_MC"));
centerMap.put(index.getString("center_City"), center);
} else {
((HashMap) centerMap.get(index.get("center_City"))).put(String.valueOf(index.get("CENTER_ID")), index.getString("CENTER_MC"));
}
}
data.putAll(centerMap); 这里面的PageData是继承的hashMap。获取所有城市的时候连表查询，查处城市所在省，字段分别是province_Code,province_Name,city_Code,city_Name;
查找中心（也就是区）的时候查找中心所在城市，字段分别是city_Code,city_Name,center_Name,center_Code.
把查出来的数据封装成city-picker.data.js一样格式数据后，转成json输出到前端，然后前端用给出的json数据显示city-pick就能自定义省市区三级联动了