我可以在winston中更改日志数据的颜色吗?

时间:2017-11-06 09:19:38

标签: node.js hapijs winston bunyan

我碰巧使用bunyan来记录数据。我希望日志打印出适当的颜色,如红色错误,调试黄色等等;不幸的是我无论如何都找不到。现在我想知道它是否可能与温斯顿。我可以在winston中更改日志数据的颜色吗?

这是我执行的代码。

  var logger = require("winston-color");
  var winston = require('winston');  
  var util    = require('util');

  var logFilename = __dirname + '/logfile.log';

  var logger = new (winston.Logger)({
    transports: [
      new (winston.transports.Console)(),
      new (winston.transports.File)({ 
      filename: 'logfile.log',
      timestamp:true 
     }),
      new (winston.transports.File)({
      name: 'error-log',
      filename: 'error.log',
      level: 'error'
      }),

     new (winston.transports.File)({
     name: 'info-log',
     filename: 'info.log',
     level: 'info'
     }),
    ]
  });
  logger.info('Hello Winston info!');
  logger.debug('Hello Winston debug!');
  logger.warn('Hello Winston warn!');
  logger.info('Hello again distributed logs'); 
  logger.error('error1');
  logger.error('error2');

输出屏幕截图here

在此工作代码的输出here

7 个答案:

答案 0 :(得分:2)

如果您要寻找自定义的颜色架构,则可以这样编写自己的转运蛋白

import winston from "winston";
import Transport from "winston-transport";

const Colors = {
    info: "\x1b[36m",
    error: "\x1b[31m",
    warn: "\x1b[33m",
    verbose: "\x1b[43m",
};

class SimpleConsoleTransport extends Transport {
    constructor() {
        super();
    }
    log = (info, callback) => {
        const { level, message, stack } = info;
        console.log(
                `${Colors[level]}${level}\t${message}\x1b[0m`,
                stack ? "\n" + stack : ""
            )
        if (callback) {
            callback();
        }
    };
}

然后以这种方式配置Winston实例:

winston.configure({
            transports: [new SimpleConsoleTransport()],
        });

这些是您可以使用的全部颜色列表:

Reset = "\x1b[0m"
Bright = "\x1b[1m"
Dim = "\x1b[2m"
Underscore = "\x1b[4m"
Blink = "\x1b[5m"
Reverse = "\x1b[7m"
Hidden = "\x1b[8m"

FgBlack = "\x1b[30m"
FgRed = "\x1b[31m"
FgGreen = "\x1b[32m"
FgYellow = "\x1b[33m"
FgBlue = "\x1b[34m"
FgMagenta = "\x1b[35m"
FgCyan = "\x1b[36m"
FgWhite = "\x1b[37m"

BgBlack = "\x1b[40m"
BgRed = "\x1b[41m"
BgGreen = "\x1b[42m"
BgYellow = "\x1b[43m"
BgBlue = "\x1b[44m"
BgMagenta = "\x1b[45m"
BgCyan = "\x1b[46m"
BgWhite = "\x1b[47m"

答案 1 :(得分:1)

我遵循了this的答案,并使其适用于颜色

new winston.transports.Console({
  format: winston.format.combine(
            winston.format.colorize(),
            winston.format.simple()
          )
});

答案 2 :(得分:1)

表情符号

您可以像其他答案中提到的那样为文本使用颜色。

但是您可以改用表情符号!例如,您可以将⚠️用于警告消息,将?用于错误消息。 (即使没有记录器!但是您也可以将其包装在记录器中,以进行访问控制)

或者只是将这些笔记本用作颜色:

console.log('?: error message');
console.log('?: warning message');
console.log('?: ok status message');
console.log('?: action message');
console.log('?: canceled status message');
console.log('?: Or anything you like and want to recognize immediately by color');

?奖励:

此方法还可以帮助您快速直接在源代码中直接扫描并查找日志

而且,它不依赖于任何框架,您可以在任何地方自由使用它。

但是Linux默认的emoji字体默认情况下不是彩色的,您可能首先要使其彩色。

答案 3 :(得分:0)

我没试过这个。但根据这个你使用颜色的日志。 enter link description here

答案 4 :(得分:0)

是的,你可以。您可以使用我在项目中使用的以下代码。

<强>记录器/ WinstonPlugin.js

/* jslint node: true */
/* jshint esversion: 6 */

'use strict';
const Winston = require('winston');
const logLevel = 'debug';

var logger;

(function createLogger() {

    logger = new(Winston.Logger)({
        transports: [
            new(Winston.transports.Console)({
                level: logLevel,
                colorize: true,
                timestamp: function () {
                    return (new Date()).toLocaleTimeString();
                },
                prettyPrint: true
            })
        ]
    });

    Winston.addColors({
        error: 'red',
        warn: 'yellow',
        info: 'cyan',
        debug: 'green'
    });
})();

module.exports = logger;

任何时候你需要任何代码文件中的Winston。您可以访问如下:

const Winston = require('logger/WinstonPlugin');
Winston.info('This is a info statement');
Winston.debug('This is a debug statement');
Winston.debug('This is a warning statement');
Winston.error('This is a error statement');

您将在控制台中看到彩色输出。

答案 5 :(得分:0)

试过你的修复;温斯顿不注意任何颜色设置。

答案 6 :(得分:-3)

为什么不使用log4js呢?这是一个完整的例子:

/* logger.js (tested with log4js 2.5.3) */
const log4js = require('log4js')
const logger = function(topic) {
    const f = `logs/${topic}-${new Date().toISOString().substr(0, 10)}.log`
    log4js.configure({
        appenders: {
            out: { type: 'stdout'},
            [topic]: {
                type: 'file', filename: f, maxLogSize: 128*1024*1024, backups: 10, compress: false
            }
        },
        categories: {
            default: { appenders: ['out', topic], level: 'debug' }
        }
    })
    return log4js.getLogger(topic)

}
module.exports=logger

/* app.js */
const logger = require('./logger')('some-topic')

logger.info('loaded')
logger.warn('no such command')
logger.error('oops some problem')