# hotCity 城市选择器, 城市数据库可自己导出
##后台数据API 由HotApp小程序统计提供并维护,如果需要导出并部署在公司的生产环境,最后有SQL导出下载地址
## 使用方法
- 复制pages/district到你的项目目录
- 把样式文件district.wxss引入到您调用本插件的作用域
`@import "你的路径/district/wxParse.wxss";`
- 在需要使用的模版的x.wxml中引入模版文件wxParse.wxml
```javascript
<import src="../district/district.wxml"/>
<template is="district" data="{{districts}}" />
```
- 在对应的js中引入district.js文件
`var WxParse = require('你的路径/district/district.js');`
- 使用:
在你的js文件中, 必须要绑定四个事件:
getProvinces、getCities、getDistricts和finish
其中
getProvinces事件需要调用districts.getProvinces(this);
getCities事件需要调用districts.getCities(this, event);
getDistricts事件需要调用districts.getDistricts(this, event);
finish事件需要调用districts.finish(this, event);
## 应用截图
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/1.png)
###样式一 通过导航实现三级选择
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/2.png)
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/3.png)
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/4.png)
###样式二 三级联动
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/5.png)
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/6.png)
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/7.png)
## 统计截图 通过接入hotApp的统计,可知道大家喜欢那个城市选择器
![首页](https://github.com/hotapp888/hotcity/blob/master/screenshots/01.png)
## 数据来源
数据来源于高德地图, 从高德地图的行政区划查询中找到了api请求地址, 然后再写脚本把高德所有的数据全部导入到hotapp的数据库中
## 数据库表设计
高德地图返回的数据格式是:
```json
{
adcode: "220100"
center: "125.3245,43.886841"
citycode: "0431"
districts: []
level: "city"
name: "长春市"
}
```
我稍微改造了一下, 数据库字段设计为:
```sql
CREATE TABLE `tbl_districts` (
`adcode` char(6) COLLATE utf8_unicode_ci NOT NULL,
`name` varchar(20) COLLATE utf8_unicode_ci NOT NULL,
`lng` decimal(12,8) unsigned NOT NULL,
`lat` decimal(12,8) unsigned NOT NULL,
`level` varchar(10) COLLATE utf8_unicode_ci NOT NULL,
`parent_adcode` char(6) COLLATE utf8_unicode_ci NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`adcode`),
KEY `tbl_districts_parent_adcode_index` (`parent_adcode`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
```
其中, lng表示经度, lat表示纬度, level有"province"、"city"和"district"三种类型
## 接口使用方法
一共就一个接口: `GET /districts`, 如果不带参数, 表示获取的是所有province级别的数据, 如果带上参数parent_adcode, 表示获取指定的parent_adcode的数据.
比如: 要获取所有province级别的数据: `GET https://wxapi.hotapp.cn/api/districts` , 返回格式为:
```json
[
{
"adcode": 110000,
"name": "北京市",
"lng": "116.40528500",
"lat": "39.90498900",
"level": "province",
"parent_adcode": ""
},
{
"adcode": 120000,
"name": "天津市",
"lng": "117.19018200",
"lat": "39.12559600",
"level": "province",
"parent_adcode": ""
},
...
{
"adcode": 420000,
"name": "湖北省",
"lng": "114.29857200",
"lat": "30.58435500",
"level": "province",
"parent_adcode": ""
},
...
]
```
然后如果需要获取湖北省所有的city, 那么调用`GET https://wxapi.hotapp.cn/api/districts?parent_adcode=420000`, 返回格式为:
```json
[
{
"adcode": 420100,
"name": "武汉市",
"lng": "114.29857200",
"lat": "30.58435500",
"level": "city",
"parent_adcode": "420000"
},
{
"adcode": 420700,
"name": "鄂州市",
"lng": "114.89059300",
"lat": "30.39653600",
"level": "city",
"parent_adcode": "420000"
},
{
"adcode": 420800,
"name": "荆门市",
"lng": "112.20425100",
"lat": "31.03542000",
"level": "city",
"parent_adcode": "420000"
},
...
]
```
然后想要再获取武汉市所有的区, 那么就调用`GET https://wxapi.hotapp.cn/api/districts?parent_adcode=420100`, 返回格式为:
```json
[
{
"adcode": 420102,
"name": "江岸区",
"lng": "114.30304000",
"lat": "30.59491100",
"level": "district",
"parent_adcode": "420100"
},
{
"adcode": 420103,
"name": "江汉区",
"lng": "114.28310900",
"lat": "30.57877100",
"level": "district",
"parent_adcode": "420100"
},
...
]
```
另外, 考虑到有些用户可能以后会自己开发后台, 所以也提供了数据库导出接口, 在这里 http://wenda.hotapp.cn/article/3, 这个会导出我们的数据库表接口和所有数据!
--------
hot云笔记小程序 云端存储记事的开源小程序
https://github.com/hotapp888/hotapp-notepad
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200个微信小程序案例源码可运行.zip
![preview](https://csdnimg.cn/release/downloadcmsfe/public/img/white-bg.ca8570fa.png)
共2000个文件
png:1882个
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wxss:1013个
![preview-icon](https://csdnimg.cn/release/downloadcmsfe/public/img/scale.ab9e0183.png)
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温馨提示
HotApp云笔记-精品开源demo基于免费API HotCity城市选择器开源-城市数据库可自己导出 V2EX社区:获取最新文章,最热文章,所有节点;适用1122 福利demo:妹子图:分类标签,根据分类标签获取分类图片 基于微信小程序开发的仿微信demo 精品demo推荐:爱拼宝宝:导航固定在顶部,适用1122版本 精品demo推荐:事项助手;引入兼容库Bluebird支持Promise 使用第三方模块Underscore.js, Immutable.js, UUID 推荐研究demo:豆瓣电影:代码中有大量注释 微信下程序demo:电影麻辣烫 微信小程序模仿拉钩招聘APP源代码 微信小程序24点计算游戏 微信小程序24点计算游戏(2) 微信小程序demo: cnode练习版 微信小程序demo: github博客 微信小程序demo: ihobby 微信小程序demo: jinri, 富文本解析 微信小程序demo: Railay: 整体框架 微信小程序demo: requestURL 的连通性测试 微信小程序demo: SDK.CN 微信小程序demo: titans 微信小程序demo: todo: wx.setStorageSync(KEY,DATA) 方法存放数据 微信小程序demo: V2EX (11月9日版) 微信小程序demo:百思不得姐 微信小程序demo:百思不得姐:使用不得姐api 微信小程序demo:柏拉图测试:趣味图片生成器 微信小程序demo:宝宝起名
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