通过Node.js获取高德的省市区数据并插入数据库

[1 创建秘钥](#1 创建秘钥)
- [1.1 登录高德地图开放平台](#1.1 登录高德地图开放平台)
- [1.2 创建应用](#1.2 创建应用)
- [1.3 绑定服务创建秘钥](#1.3 绑定服务创建秘钥)
[2 获取数据并插入](#2 获取数据并插入)
- [2.1 创建数据库连接工具](#2.1 创建数据库连接工具)
- [2.2 请求数据](#2.2 请求数据)
- [2.3 数据处理](#2.3 数据处理)
- [2.4 全部代码](#2.4 全部代码)
[3 还可以打印文件到本地](#3 还可以打印文件到本地)

1 创建秘钥

1.1 登录高德地图开放平台

打开开放平台地址

注册账号或申请账后

1.2 创建应用

1.3 绑定服务创建秘钥

2 获取数据并插入

将使用高德地图API https://restapi.amap.com/v3/config/district?parameters进行行政区域查询，API详细文档可看[官方说明](https://lbs.amap.com/api/webservice/guide/api/district/#limit)

2.1 创建数据库连接工具

javascript 复制代码

const mysql = require('mysql');

const pool = mysql.createPool({
  host: 'XXX',
  port: '3306',
  database: 'XXX',
  user: 'user',
  password: 'password',
});
function query(sql, data = {}) {
  return new Promise((resolve, reject) => {
    pool.getConnection(function (err1, connection) {
      if (err1) {
        reject(err1);
      }
      connection.query(sql, data, function (err2, rows) {
        connection.release();
        if (err2) {
          reject(err2);
        } else {
          resolve(rows);
        }
      });
    });
  });
}

2.2 请求数据

javascript 复制代码

const requestUrl = "https://restapi.amap.com/v3/config/district"
const secretKey = "高德地图上的秘钥"
// 仅获取到区级
  const url = `${requestUrl}?keywords=中国&subdistrict=3&key=${secretKey}`

  let { data } = await axios.get(encodeURI(url))
  if (
    !data.districts ||
    data.districts.length !== 1 ||
    data.districts[0].name !== "中华人民共和国"
  )
    throw Error("数据获取失败")

2.3 数据处理

javascript 复制代码

for (const province of data.districts[0].districts) {
  // 排除香港、台湾、澳门。台湾、香港、澳门的数据具有一定的问题，台湾省下无具体市区(县)等行政单位，香港和澳门特别行政区仅有两级行政单位。
  if(["810000", "710000", "820000"].includes(province.adcode)) continue;
  let provinceData:Line = {
    address_code: province.adcode,
    address_name: province.name,
    parent_address_code: "0",
    create_time:new Date().getTime().toString(),
  }
  await sqlCommand('insert into t_address set ?', provinceData);
  for (const city of province.districts) {
    let cityData:Line = {
      address_code: city.adcode,
      address_name: city.name,
      parent_address_code: province.adcode,
      create_time:new Date().getTime().toString()
    }

    await sqlCommand('insert into t_address set ?', cityData);
    for (const area of city.districts) {
      let areaData:Line = {
        address_code: area.adcode,
        address_name: area.name,
        parent_address_code: city.adcode,
        create_time:new Date().getTime().toString()
      }
      await sqlCommand('insert into t_address set ?', areaData);
    }
  }
  console.log(`${province.name}数据插入完成`)
}

2.4 全部代码

javascript 复制代码

import axios from "axios"
import mysql from "mysql"
export type Line = {
  address_code: string
  address_name: string
  parent_address_code: string
  create_time: string
}
const requestUrl = "https://restapi.amap.com/v3/config/district"
const secretKey = "获取到的秘钥"
const pool = mysql.createPool({
  host: "XXX",
  port: "3306",
  database: "XXX",
  user: "user",
  password: "password",
});

function sqlCommand(sql, data = {}) {
  return new Promise((resolve, reject) => {
    pool.getConnection(function (err1, connection) {
      if (err1) {
        reject(err1);
      }
      connection.query(sql, data, function (err2, rows) {
        connection.release();
        if (err2) {
          reject(err2);
        } else {
          resolve(rows);
        }
      });
    });
  });
}
async function main() {
  // 仅获取到：1.省级，2.市级，3.区级
  const url = `${requestUrl}?keywords=中国&subdistrict=3&key=${secretKey}`
  let { data } = await axios.get(encodeURI(url))
  if (
    !data.districts ||
    data.districts.length !== 1 ||
    data.districts[0].name !== "中华人民共和国"
  )
    throw Error("数据获取失败")
  for (const province of data.districts[0].districts) {
    // 排除香港、台湾、澳门。台湾、香港、澳门的数据具有一定的问题，台湾省下无具体市区(县)等行政单位，香港和澳门特别行政区仅有两级行政单位。
    console.time(province.name)
    if(["810000", "710000", "820000"].includes(province.adcode)) continue;
    let provinceData:Line = {
      address_code: province.adcode,
      address_name: province.name,
      parent_address_code: "0",
      create_time:new Date().getTime().toString(),
    }
    await sqlCommand('insert into t_address set ?', provinceData);
    for (const city of province.districts) {
      let cityData:Line = {
        address_code: city.adcode,
        address_name: city.name,
        parent_address_code: province.adcode,
        create_time:new Date().getTime().toString()
      }
      await sqlCommand('insert into t_address set ?', cityData);
      for (const area of city.districts) {
        let areaData:Line = {
          address_code: area.adcode,
          address_name: area.name,
          parent_address_code: city.adcode,
          create_time:new Date().getTime().toString()
        }
        await sqlCommand('insert into t_address set ?', areaData);
      }
    }
    console.timeEnd(province.name)
  }
  console.log("所有数据处理完毕")
}
main()

3 还可以打印文件到本地

javascript 复制代码

import axios from "axios"
import mysql from "mysql"
export type Line = {
  address_code: string
  address_name: string
  parent_address_code: string
  create_time: string
}
const requestUrl = "https://restapi.amap.com/v3/config/district"
const secretKey = "获取到的秘钥"
const pool = mysql.createPool({
  host: "XXX",
  port: "3306",
  database: "XXX",
  user: "user",
  password: "password",
});
function sqlCommand(sql, data = {}) {
  return new Promise((resolve, reject) => {
    pool.getConnection(function (err1, connection) {
      if (err1) {
        reject(err1);
      }
      connection.query(sql, data, function (err2, rows) {
        connection.release();
        if (err2) {
          reject(err2);
        } else {
          resolve(rows);
        }
      });
    });
  });
}
// 打印JSON到根目录
function writeToJson(fileName: string, data: any) {
  if (!fs.existsSync(resolve(process.cwd(), "dist"))) {
    fs.mkdirSync(resolve(process.cwd(), "dist"));
  }
  const path = resolve(process.cwd(), "dist", fileName);
  return fs.writeFileSync(path, JSON.stringify(data));
}
async function main() {
  // 仅获取到：1.省级，2.市级，3.区级
  const url = `${requestUrl}?keywords=中国&subdistrict=3&key=${secretKey}`;
  let { data } = await axios.get(encodeURI(url));
  const datas = [];
  if (
    !data.districts ||
    data.districts.length !== 1 ||
    data.districts[0].name !== "中华人民共和国"
  )
    throw Error("数据获取失败");
  for (const province of data.districts[0].districts) {
    // 排除香港、台湾、澳门。台湾、香港、澳门的数据具有一定的问题，台湾省下无具体市区(县)等行政单位，香港和澳门特别行政区仅有两级行政单位。
    console.time(province.name);
    if (["810000", "710000", "820000"].includes(province.adcode)) continue;
    let provinceData: Line = {
      address_code: province.adcode,
      address_name: province.name,
      parent_address_code: "0",
      create_time: new Date().getTime().toString(),
    };
    await sqlCommand("insert into t_address set ?", provinceData);
    datas.push(provinceData);
    for (const city of province.districts) {
      let cityData: Line = {
        address_code: city.adcode,
        address_name: city.name,
        parent_address_code: province.adcode,
        create_time: new Date().getTime().toString(),
      };
      await sqlCommand("insert into t_address set ?", cityData);
      datas.push(cityData);
      for (const area of city.districts) {
        let areaData: Line = {
          address_code: area.adcode,
          address_name: area.name,
          parent_address_code: city.adcode,
          create_time: new Date().getTime().toString(),
        };
        await sqlCommand("insert into t_address set ?", areaData);
        datas.push(areaData);
      }
    }
    console.timeEnd(province.name);
  }
  writeToJson("mapData", datas);
  console.log("所有数据处理完毕");
}
main();