創建cron執行node.js文件

Question

我正在嘗試每兩個小時執行一次javascript文件。 我正在使用node.js，所以我創建了這個cron

1 * * * * /usr/bin/node /var/www/html/uniphiData/js/recalculate_points.js

我的recalculate_ponts.js文件是這樣的：

var mysql = require('/var/www/html/uniphiData/mysql');

var connection = mysql.createConnection({
    host: 'HOST',
    user: 'USER',
    password: 'PASS!',
    database: 'DATABASE'
});

connection.connect();

connection.query('SELECT * FROM users', function (err, rows, fields) {
    if (err) throw err;

    rows.forEach(function (row, index) {
        connection.query('SELECT count(*) AS friends FROM users WHERE invitedByFriend = ' + row.ID, function (err2, friends, fields2) {
            if (err2) throw err2;

            var realCountFriends = friends[0].friends;
            friends = friends[0].friends * 50;

            var id = '%;' + row.ID + ';%';

            connection.query('SELECT SUM(pointsPerShare) AS shareEvent FROM events WHERE shared LIKE "' + id + '"', function (err3, pointsPerSharing, fields3) {
                if (err3) throw err3;

                if (pointsPerSharing[0].shareEvent == null)
                    pointsPerSharing = 0;
                else
                    pointsPerSharing = pointsPerSharing[0].shareEvent;

                connection.query('SELECT SUM(e.pointsEntry) AS entry FROM orders o, events e WHERE o.used = 1 AND o.userID = ' + row.ID + ' AND o.eventID = e.ID', function (err4, pointsEntry, fields4) {

                    if (err4) throw err4;

                    if (pointsEntry[0].entry == null)
                        pointsEntry = 0;
                    else
                        pointsEntry = pointsEntry[0].entry;


                    connection.query('SELECT SUM(e.pointsPrepay) AS purchase FROM orders o, events e WHERE o.guestList = 0 AND o.cheapList = 0 AND o.userID = ' + row.ID + ' AND o.eventID = e.ID', function (err5, pointsPrepay, fields5) {
                        if (err5) throw err5;

                        if (pointsPrepay[0].purchase == null)
                            pointsPrepay = 0;
                        else
                            pointsPrepay = pointsPrepay[0].purchase;

                        var shareApp = row.quantitySharedApp * 20;
                        var newUser = 50;

                        var realCount = friends + pointsPerSharing + pointsEntry + pointsPrepay + shareApp + newUser;
                        var difference = realCount - row.totalPoints;

                        if (difference != 0) {
                            connection.query('UPDATE users SET points = points + ' + difference + ', totalPoints = ' + realCount + ', monthPoints = monthPoints + ' + difference + ', friendsInvited = ' + realCountFriends + ' WHERE ID = ' + row.ID, function (err6, changePoints, fields6) {

                                if (index == rows.length - 1) {
                                    connection.end();
                                }
                            })
                        } else {

                            if (index == rows.length - 1) {
                                connection.end();
                            }
                        }

                    })

                })


            })


        })
    })

});

cron登錄是這樣的：

Nov 17 14:55:01 name CRON[4677]: (root) CMD (/usr/local/rtm/bin/rtm 14 > /dev/null 2> /dev/null)

當然不執行javascript文件，我知道腳本有效，因為我無需cron即可執行該腳本。 我不知道自己在做什么錯，但我在互聯網上搜索，然后嘗試輸入絕對路線和相對路線，但沒有任何反應。

太感謝了

Answer 1

您可以創建執行.js文件的bash腳本（.sh）。 您將使用cron調用.sh文件。

1 * * * * /path/to/file.sh

.sh文件如下所示：

#!/bin/bash cd "$(dirname "$0")" node ./app.js

app.js顯然是您的JavaScript文件，與您的.sh文件位於同一文件夾中