cesium_three_nodejs/router_handler/weather/variables.js

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

//获取气象层级
exports.getVariables = async (req, res) => {
    let varArray = [];
    for (let key in allVar) {
        varArray.push({
            id: key, name: allVar[key].name, unit: allVar[key].unit
        });
    }
    // 将数据返回给客户端
    res.rescc("获取气象变量成功", 200, varArray);
}