我有一个节点服务器应用程序,在CentOS上作为pm2服务运行。 它必须列出具有nodejs fs 模块的所有外部驱动器。当root用户登录时,它可以正常工作。重启操作系统后,pm2再次运行服务器,但无法访问查看目录。
这是列出所有目录的代码:
const driveList = require('drivelist');
const fs = require('fs');
const path = require('path');
const emptyDir = require('empty-dir');
const config = require('../config.json');
exports.list_all_drives = function(req, res) {
return driveList.list((err, drives) => {
if(err) return res.status(500).send('there was an error');
let isWin = /^win/.test(process.platform);
let usbDrives = [];
drives.map((drive) => {
if(isWin){
for(let index in drive.mountpoints){
usbDrives.push(drive.mountpoints[index].path);
}
}else{
if(!drive.system){
for(let index in drive.mountpoints){
usbDrives.push(drive.mountpoints[index].path);
}
}
}
});
if(err) return res.status(500).send('there was an error');
let records = [];
usbDrives.forEach((name, i) => {
let record = {};
record.id = i;
record.title = name;
record.path = name;
record.isDirectory = true;
let skip = false;
config.skipPath.forEach((val) => {
if(record.path == val){
skip = true;
}
});
if(!skip){
records.push(record);
}
});
res.status(200).send(records);
});
};
当用户登录时,功能工作并列出所有操作系统目录,但系统重新启动时返回500错误:
{ “错误号”: - 2 “码”: “ENOENT”, “系统调用”: “打开”, “路径”: “/运行/用户/ 0 / drivelist-ecc75a4a9523.sh”}