如果您需要log4js,这是一个支持json事件的定制日志记录器。你可以
import log4js from "log4js";
import {log4jsConfig} from "./log4js.config.js";
log4js.addLayout('json', function (config) {
return function (logEvent) {
logEvent.application = 'my-app';
logEvent.processId = process.pid;
if (process.env.IP) {
logEvent.ip = process.env.IP;
}
if (process.env.ENV) {
logEvent.ENV = process.env.ENV;
}
if (logEvent.data && logEvent.data.length > 0) {
logEvent.message = logEvent.data[0];
delete logEvent.data;
}
return JSON.stringify(logEvent);
};
});
const log = log4js.getLogger('engine');
log4js.configure(log4jsConfig);
export class AndromedaLogger {
logger;
loggerOptions;
constructor(args) {
this.logger = log;
}
get Logger() {
return this.logger;
}
static configGlobal(options) {
this.loggerOptions = options;
}
info(message) {
this.logger.info(message);
}
error(message, trace) {
this.logger.error(`${message} -> (${trace || 'trace not provided !'})`);
}
warn(message) {
this.logger.warn(message);
}
debug(message, context) {
this.logger.debug(message);
}
trace(message, context) {
this.logger.trace(message);
}
fatal(message, context) {
this.logger.fatal(message);
}
child() {
return new AndromedaLogger()
};
}
log4js配置:
const _log4jsConfig = {
appenders: {},
categories: {
default: {
appenders: [],
level: 'trace',
},
},
};
_log4jsConfig.appenders.stdout = {
type: 'stdout',
layout: { type: 'colored' },
};
_log4jsConfig.appenders['file'] = {
type: 'file',
filename: 'logs/app.log',
maxLogSize: 104857600,
numBackups: 3,
};
_log4jsConfig.categories.default.appenders.push('stdout');
_log4jsConfig.categories.default.appenders.push('file');
export const log4jsConfig = _log4jsConfig;