add utils

utils/dateTimeUtils.js

@@ -0,0 +1,31 @@
+/**
+ * refer: https://www.npmjs.com/package/solarlunar
+ */
+const solarLunar = require('solarlunar');
+
+
+// 获取 今日 到 阳历指定日期 的间隔
+function getSpanDays_solar(solarYear, solarMonth, solarDay) {
+    let nowDate_00_00 = new Date(new Date().toLocaleDateString()); /* 当日0点 */
+
+    let festivalDayDate = new Date(`${solarYear}-${solarMonth}-${solarDay} 00:00:00`);
+    let festivalSpanDays = ((festivalDayDate - nowDate_00_00) / (24 * 3600 * 1000));
+    // console.log(festivalSpanDays, nowDate_00_00, festivalDayDate);
+    return festivalSpanDays;
+}
+
+// 获取 今日 到 农历指定日期 的间隔
+function getSpanDays_lunar(lunarYear, lunarMonth, lunarDay) {
+    let nowDate_00_00 = new Date(new Date().toLocaleDateString()); /* 当日0点 */
+
+    let festivalDay = solarLunar.lunar2solar(lunarYear, lunarMonth, lunarDay); // 农历
+    let festivalDayDate = new Date(`${festivalDay.cYear}-${festivalDay.cMonth}-${festivalDay.cDay} 00:00:00`); // 2022-09-09T16:00:00.000Z
+    let festivalSpanDays = ((festivalDayDate - nowDate_00_00) / (24 * 3600 * 1000));
+    // console.log(festivalSpanDays, nowDate_00_00, festivalDayDate);
+    return festivalSpanDays;
+}
+
+module.exports = {
+    getSpanDays_solar,
+    getSpanDays_lunar
+}

utils/dbPoolUtils.js

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+const mysql = require('mysql');
+const fs = require('fs');
+const path = require('path');
+
+let globalConfig = JSON.parse(fs.readFileSync(path.join(__dirname, '../config.json'), 'utf8'));
+let pool = null;
+
+function createPool(database) {
+    let config = {
+        connectionLimit: 10, //连接数量，默认是10
+        ...globalConfig.mysql,
+        database: database,
+    };
+    console.log(config);
+
+    //创建数据库连接池
+    pool = mysql.createPool(config);
+
+    // //从连接池中获取连接时，将触发该事件
+    // pool.on('acquire', function (conn) {
+    //     console.log('获取连接', conn.threadId);
+    // });
+
+    // //在连接池中建立新连接时，将触发该事件
+    // pool.on('connection', function (conn) {
+    //     console.log('建立新连接', conn.threadId);
+    // });
+
+    // //等待可用连接时，将触发该事件
+    // pool.on('enqueue', function () {
+    //     console.log('等待可用连接');
+    // });
+
+    // //当连接释放回池中时，触发该事件
+    // pool.on('release', function (conn) {
+    //     console.log('连接被释放回池中', conn.threadId);
+    // });
+}
+
+async function query(sql) {
+    if (!pool) {
+        console.error('Database connection pool is not initialized yet.');
+        return;
+    }
+    return await new Promise(function (resolve, reject) {
+        //pool.query()方法可以自动的帮我们在连接池中获取可用连接
+        pool.query(sql, function (err, data) {
+            if (err) reject(err);
+            // console.log(data);
+            resolve(data);
+        });
+
+        // //当然我们也可以手动获取可用连接
+        // pool.getConnection(function (err, conn) {
+        //     if (err) {
+        //         throw err;
+        //     }
+        //     conn.query('select * from `order`', function (err, data) {
+        //         if (err) {
+        //             throw err;
+        //         }
+        //         data.forEach(function (value) {
+        //             console.log(value.id, value.order_id, value.user_id);
+        //         });
+
+        //         //连接用完之后，需要释放，重新放回连接池中。
+        //         //注意这里并没有销毁该连接，该连接仍然可用，但需要重新获取
+        //         conn.release();
+        //     });
+        // });
+    });
+}
+
+function close() {
+    if (!pool) return;
+    pool.end(function (err) {
+        console.log('关闭连接池', err);
+    });
+    pool = null;
+}
+
+module.exports = {
+    query: query,
+    close: close,
+}

utils/dbUtils.js

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+//引入MySQL
+const mysql = require('mysql');
+const fs = require('fs');
+const path = require('path');
+
+let globalConfig = JSON.parse(fs.readFileSync(path.join(__dirname, '../config.json'), 'utf8'));
+let config = {
+    ...globalConfig.mysql,
+};
+console.log(config);
+
+async function query(sql) {
+    //通过MySQL中方法创建链接对象
+    var connection = mysql.createConnection(config);
+    //开始连接
+    connection.connect();
+    //执行SQL语句 (添加、删除、更新、查询)
+    connection.query(sql, (err, result) => {
+        if (err) {
+            console.error('err', err);
+            return;
+        }
+        console.log('result', result);
+    })
+    //最后需要关闭连接
+    connection.end();
+}
+
+module.exports = {
+    query: query,
+}

utils/fileUtils.js

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+const fs = require('fs');
+const path = require('path');
+
+// 创建目录
+async function createFolder(folderToCreate) {
+    let currentFolder = path.join(folderToCreate);
+    let parentFolder = path.join(currentFolder, '../');
+    // console.log({ currentFolder: currentFolder, parentFolder: parentFolder });
+    if (!fs.existsSync(currentFolder)) {
+        // 文件夹不存在，创建文件夹
+        createFolder(parentFolder);  // 保证父级文件夹存在
+        fs.mkdirSync(currentFolder); // 创建当前级文件夹
+    } else {
+        // 否则就什么也不做
+    }
+}
+
+// 保存 JSON
+function saveJSON({ saveFolder, now, fileNameSuffix, object, compress = true, uncompress = true }) {
+    if (LATEST_DATA_ONLY) return;
+
+    let year = now.substring(0, 4);
+    let month = now.substring(5, 7);
+    let day = now.substring(8, 10);
+    let hour = now.substring(11, 13);
+    let minute = now.substring(14, 16);
+    // console.log(now);
+    // console.log( "year, month, day, hour, minute: " + year + ", " + month + ", " + day + ", " + hour + ", " + minute);
+
+    // 创建当前文件夹
+    let folder = `${saveFolder}/${fileNameSuffix}/${year}/${month}/${day}`;
+    createFolder(folder);
+    let fileName = `${folder}/${year}${month}${day}_${hour}${minute}`;
+
+    // 生成文件名
+    // '2022-07-23T10:11:38.650Z' => '20220723_1011'
+    // let fileName = now.replace(/T/, '_').replace(/:\d{2}.\d{3}Z/, '').replace(/[-:]/g, '');
+    // console.log(`fileName is ${fileName}`);
+
+    if (compress)
+        fs.writeFileSync(`${fileName}.min.json`, JSON.stringify(object));
+    if (uncompress)
+        fs.writeFileSync(`${fileName}.json`, JSON.stringify(object, "", "\t"));
+}
+
+module.exports = {
+    createFolder,
+    saveJSON,
+}

utils/requestUtils.js

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+const request = require('request');
+
+async function get(url) {
+    return await query({
+        method: 'GET',
+        url: url,
+        json: true,
+    });
+}
+
+async function getApiResult(url, params = null) {
+    return await query({
+        method: 'GET',
+        url: url,
+        ...params ?? {}
+    });
+}
+
+async function query(opts) {
+    var return_data = await new Promise((resolve, reject) => {
+        // console.log("opts", opts);
+        request(opts, (error, response, result) => {
+            // console.log("error, result", error, result);
+            if (!error && (response.statusCode == 200)) {
+                // 请求成功
+                resolve(result);
+            } else {
+                // 请求失败
+                console.error(`error is ${error}`);
+                reject(error);
+            }
+        });
+    });
+    // console.log(`return_data is ${JSON.stringify(return_data)}`);
+    return return_data;
+}
+
+module.exports = {
+    get: get,
+    getApiResult: getApiResult,
+    query: query,
+}

utils/sleepUtils.js

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+async function sleep(ms) {
+    await new Promise(function (resolve, reject) {
+        setTimeout(resolve, ms);
+    });
+}
+
+module.exports = sleep;