在Node.js中,日志记录(Logging)是一种重要的调试和监控手段,它可以帮助开发者追踪应用程序的运行状态和错误信息。loggers和logging是实现这一功能的关键组件。 基础概念 Logger(日志记录器):是一个对象,负责记录日志消息。它通常提供不同级别的日志记录方法(如debug、info、warn、error等),并且可以配置日志的输...
debug: function (s) {this.message(logger.LEVEL_DEBUG, s); }, info: function (s) {this.message(logger.LEVEL_INFO, s); }, warn: function (s) {this.message(logger.LEVEL_WARN, s); }, error: function (s) {this.message(logger.LEVEL_ERROR, s); }, fatal: function (s) {this.messa...
Named Loggers Okay, let's get serious, logging is not for kids, it's for adults with serious software to write and mission critical log messages to trawl through. To help you in your goal, js-Logger provides 'named' loggers which can be configured individual with their own contexts. //...
This technique is essentially a way to "inject" an instance of a logger for use by Nest. The app.get() call retrieves the singleton instance of MyLogger, and depends on that instance being first injected in another module, as described above....
logger.info('Fetching user by id %s',params.id) constuser=awaitUser.find(params.id) }) Configuration The config for the logger is stored within theconfig/logger.tsfile. By default, only one logger is configured. However, you can define config for multiple loggers if you want to use more...
{"type" : "file","filename" : "logs/app.log","maxLogSize" : 204800,"backups" : 10,"category" : "app"} ],"replaceConsole":true,"levels": {"app" : "ALL"} });varlogger = log4js.getLogger('app'); app.use(log4js.connectLogger(logger, {format:':remote-addr :method :url ...
const logger = log4js.getLogger('file'); // 使用file类型的日志实例 定义日志输出格式 实现日志格式化输出 修改信息等级输出格式 在工程中找到log4js插件包中layouts.js文件,在文件内找到函数logLevel(loggingEvent),将起替换为如下代码: function logLevel(loggingEvent) { ...
注:高级配置需要think-logger3 >= 1.1.1。 require('path');const{File}=require('think-logger3');module.exports={type:'file',file:{handle:File,backups:10,absolute:true,maxLogSize:50*1024,//50Mfilename:path.join(think.ROOT_PATH,'logs/xx.log'),layout:{type:'pattern',pattern:'%[[%d] [...
Logger.useDefaults({defaultLevel:Logger.WARN,formatter:function(messages,context){messages.unshift(newDate().toUTCString());},}); You can also use the aliasLogger.setDefaults(). Named Loggers Okay, let's get serious, logging is not for kids, it's for adults with serious software to write ...
Maintainers Contribute License Demo @https://codepen.io/justinkames/pen/BwGOVQ Introduction vuejs-logger is a tool that enables configurable logging for Vue applications. Features include : Output restriction based on selected loglevel. Automatically JSON.stringify() the (reactive) properties passed ...