log4js
日志管理
npm i log4js
appenders
type=dateFile
datefile:{
type: 'dateFile', // 导出文件
pattern: 'hh', // 切割日志文件的时候 按小时 划分 .yyyy-MM-dd
filename: getPath(), // 文件路径
maxLogSize: 5242880, // 5M
daysToKeep: 1e5, // 保留天数
compress: true, // 压缩成 .tar.gz 文件
keepFileExt: true, // 保留文件后缀 如 log.1.log log.2.log
}
layout
%x{time} 指定自定义 tokens,可添加自定义 日志前缀
{
type: 'pattern',
pattern: '[%x{time}] [%p] %m',
tokens: {
time: function (logEvent) {
// eslint-disable-next-line no-unused-vars
const { startTime, categoryName, data } = logEvent;
return `${timeStamp()}`;
},
},
}
categories
`logger.js` 日志切割，生成日志文件
const path = require('path');
const log4js = require('log4js');
const { timeStamp } = require('.');
const serverLogPath = '/serverpath/log';
const localLogPath = '../../log';
const dayjs = require('dayjs');
const folder = dayjs(Date.now() + (process.env.prod ? 8 * 36e5 : 0)).format('YYYY-MM-DD');
const getPath = (str = 'log') => {
return path.resolve(__dirname, process.env.prod ? serverLogPath : localLogPath, `${folder}/${str}`);
};
//
log4js.configure({
appenders: {
default: {
type: 'dateFile',
pattern: 'hh',
filename: getPath(),
maxLogSize: 5242880, // 5M
daysToKeep: 1e5,
// compress: true,
keepFileExt: true,
layout: {
type: 'pattern',
pattern: '[%x{time}] [%p] %m',
tokens: {
time: function (logEvent) {
// eslint-disable-next-line no-unused-vars
const { startTime, categoryName, data } = logEvent;
return `${timeStamp()}`;
},
},
},
},
order: {
type: 'dateFile',
pattern: 'hh', // defaul .yyyy-MM-dd
filename: getPath('order'),
maxLogSize: 5242880, // 5M
daysToKeep: 1e5,
// compress: true,
keepFileExt: true,
layout: {
type: 'pattern',
pattern: '[%x{time}] [%p] %m',
tokens: {
time: function (logEvent) {
// eslint-disable-next-line no-unused-vars
const { startTime, categoryName, data } = logEvent;
return `${timeStamp()}`;
},
},
},
},
console: {
type: 'console',
layout: {
type: 'pattern',
pattern: '[%x{time}] [%p] %m',
tokens: {
time: function (logEvent) {
// eslint-disable-next-line no-unused-vars
const { startTime, categoryName, data } = logEvent;
return `${timeStamp()}`;
},
},
},
},
},
categories: {
order: { appenders: ['order', 'console'], level: 'all' },
default: { appenders: ['default', 'console'], level: 'all' },
},
});
process.on('exit', () => {
log4js.shutdown();
});
process.on('uncaughtException', () => {
log4js.shutdown();
});
module.exports = {
logger: log4js,
getLogger: categorie => log4js.getLogger(categorie || 'default'),
};