使用高德地图API获取最新行政区域数据(省市区等数据json)

文档:https://lbs.amap.com/api/webservice/guide/api/district/#limit
API: https://restapi.amap.com/v3/config/district?subdistrict=4&key=申请的key
key: 注册后免费获取

image.png

浏览器端访问

使用node生成json文件,转换为自己所需的格式

const axios = require('axios');
const fs = require('fs');

const key = '***';
const subdistrict = 2; // 数据的层级: 2:省市; 3:省市区 ......
axios
  .get(
    `https://restapi.amap.com/v3/config/district?subdistrict=${subdistrict}&key=${key}`
  )
  .then(function (res) {
    console.log(res.data);

    if (res.status == 200) {
      const data = customData(res.data.districts[0].districts);
      const jsonStr = JSON.stringify(data, '', '\t');

      fs.writeFile('area.json', jsonStr, function (err) {
        if (err) {
          return console.error(err);
        }
        console.log('数据写入成功！');
      });
    }
  })
  .catch(function (error) {
    console.log(error);
  });

function customData(arr) {
  let array = [];
  get(arr, array);
  return array;

  function get(districts, children) {
    districts.forEach(item => {
      children.push({
        value: item.adcode,
        label: item.name,
      });
      if (item.districts.length != 0) {
        children[children.length - 1].children = [];
        get(item.districts, children[children.length - 1].children);
      }
    });
  }
}