cesium_three_nodejs/router_handler/weather/level.js

const fs = require('fs');
const path = require('path');
const allLev = JSON.parse(fs.readFileSync(path.join(__dirname, '../../weather_map/level.json'), 'utf8'));

//获取气象层级
exports.getLevel = async (req, res) => {
    let lvArray = [];
    for (let key in allLev) {
        lvArray.push({
            id: key, name: allLev[key]
        });
    }
    // 将数据返回给客户端
    res.rescc("获取气象层级成功", 200, lvArray);
}