Node.js Winston未在typescript中登录到控制台

温斯顿把我弄糊涂了。我正在使用以下typescript代码登录到我的*.ts文件中的控制台：

import { Logger, LoggerInstance } from "winston";

const logger:LoggerInstance = new Logger();
logger.info('Now my debug messages are written to the console!');

控制台仍然是空的。没有编译错误或其他问题

同时，以下工作也很好：

const wnstn = require("winston");
wnstn.info('Finally my messages are written to the console!');

---

有人知道为什么会这样吗？我是否必须以不同的方式配置记录器？如何使用从第二个示例中获得的默认值？

当您实例化一个新的记录器实例时，需要向其提供一个传输列表，以便它知道将日志发送到何处：

var logger = new (winston.Logger)({
  transports: [
    new (winston.transports.Console)(),
    new (winston.transports.File)({ filename: 'somefile.log' })
  ]
});

那么

由于@idbehold的提示，我发现一个简单易懂的：

import * as winston from "winston";

winston.info('Now my debug messages are written to the console!');

---

适用于默认记录器。

这是导入Winston的Typescript方式

首先，确保您已安装键入：

npm i-D@types/winston

然后，在脚本中。ts

---

在genral中，您可以导入所有常量和类型，而无需使用以前的

winston.

。

好的，我下面的文件是winston.ts

import * as appRoot from 'app-root-path';
import * as winston from 'winston';

// define the custom settings for each transport (file, console)
const options = {
    file: {
        level: 'info',
        filename: `${appRoot}/logs/app.log`,
        handleExceptions: true,
        json: true,
        maxsize: 5242880, // 5MB
        maxFiles: 5,
        colorize: false,
    },
    console: {
        level: 'debug',
        handleExceptions: true,
        json: false,
        colorize: true,
    },
};

// instantiate a new Winston Logger with the settings defined above
const logger: winston.Logger = winston.createLogger({
    transports: [
        new winston.transports.File(options.file),
        new winston.transports.Console(options.console)
    ],
    exitOnError: false, // do not exit on handled exceptions
});

// create a stream object with a 'write' function that will be used by `morgan`
const myStream = {
    write: (message: string) => {
        // use the 'info' log level so the output will be picked up by both transports (file and console)
        logger.info(message);
    }
};


export default logger;

---

在app.ts内部使用as

this.app.use（morgan（'combined'，{stream:winston.stream}））
我无法在文件中写入，因为我认为默认值是控制台输出
import * as appRoot from 'app-root-path';
import * as winston from 'winston';

// define the custom settings for each transport (file, console)
const options = {
    file: {
        level: 'info',
        filename: `${appRoot}/logs/app.log`,
        handleExceptions: true,
        json: true,
        maxsize: 5242880, // 5MB
        maxFiles: 5,
        colorize: false,
    },
    console: {
        level: 'debug',
        handleExceptions: true,
        json: false,
        colorize: true,
    },
};

// instantiate a new Winston Logger with the settings defined above
const logger: winston.Logger = winston.createLogger({
    transports: [
        new winston.transports.File(options.file),
        new winston.transports.Console(options.console)
    ],
    exitOnError: false, // do not exit on handled exceptions
});

// create a stream object with a 'write' function that will be used by `morgan`
const myStream = {
    write: (message: string) => {
        // use the 'info' log level so the output will be picked up by both transports (file and console)
        logger.info(message);
    }
};


export default logger;