引入log4js依赖,配置类如下:
const log4js = require('log4js');
log4js.configure({
replaceConsole: true,
pm2: true,
appenders: {
stdout: {//控制台输出
type: 'console'
},
req: { //请求转发日志
type: 'dateFile', //指定日志文件按时间打印
filename: 'logs/reqlog/req', //指定输出文件路径
pattern: 'yyyy-MM-dd.log',
alwaysIncludePattern: true
},
err: { //错误日志
type: 'dateFile',
filename: 'logs/errlog/err',
pattern: 'yyyy-MM-dd.log',
alwaysIncludePattern: true
},
oth: { //其他日志
type: 'dateFile',
filename: 'logs/othlog/oth',
pattern: 'yyyy-MM-dd.log',
alwaysIncludePattern: true
}

},
categories: {
//appenders:采用的appender,取appenders项,level:设置级别
default: { appenders: ['stdout', 'req'], level: 'debug' },
err: { appenders: ['stdout', 'err'], level: 'error' },
}
});


exports.getLogger = function (name) {//name取categories项
return log4js.getLogger(name || 'default')
};
//用来与express结合
exports.useLogger = function (app, logger) {
app.use(log4js.connectLogger(logger || log4js.getLogger('default'), {
//自定义输出格式
format: '[:remote-addr :method :url :status :response-timems][:referrer HTTP/:http-version :user-agent]'
}))
};

使用日志:
const log4js = require('../../util/Log4J');
const logger = log4js.getLogger();
const errLog = log4js.getLogger('err');
打印debug级别的日志信息:
logger.info('req的值是:' + req);
打印error级别的日志信息:
errLog.error(e);
引入log4js依赖,配置类如下:
const log4js = require('log4js');
log4js.configure({
replaceConsole: true,
pm2: true,
appenders: {
stdout: {//控制台输出
type: 'console'
},
req: { //请求转发日志
type: 'dateFile', //指定日志文件按时间打印
filename: 'logs/reqlog/req', //指定输出文件路径
pattern: 'yyyy-MM-dd.log',
alwaysIncludePattern: true
},
err: { //错误日志
type: 'dateFile',
filename: 'logs/errlog/err',
pattern: 'yyyy-MM-dd.log',
alwaysIncludePattern: true
},
oth: { //其他日志
type: 'dateFile',
filename: 'logs/othlog/oth',
pattern: 'yyyy-MM-dd.log',
alwaysIncludePattern: true
}

},
categories: {
//appenders:采用的appender,取appenders项,level:设置级别
default: { appenders: ['stdout', 'req'], level: 'debug' },
err: { appenders: ['stdout', 'err'], level: 'error' },
}
});


exports.getLogger = function (name) {//name取categories项
return log4js.getLogger(name || 'default')
};
//用来与express结合
exports.useLogger = function (app, logger) {
app.use(log4js.connectLogger(logger || log4js.getLogger('default'), {
//自定义输出格式
format: '[:remote-addr :method :url :status :response-timems][:referrer HTTP/:http-version :user-agent]'
}))
};

使用日志:
const log4js = require('../../util/Log4J');
const logger = log4js.getLogger();
const errLog = log4js.getLogger('err');
打印debug级别的日志信息:
logger.info('req的值是:' + req);
打印error级别的日志信息:
errLog.error(e);