74 lines
1.6 KiB
JavaScript
74 lines
1.6 KiB
JavaScript
/**
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* 日志工具
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* @file logger.js
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* @description 系统日志管理
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*/
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const winston = require('winston');
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const path = require('path');
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// 创建日志目录
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const logDir = 'logs';
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// 定义日志格式
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const logFormat = winston.format.combine(
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winston.format.timestamp({
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format: 'YYYY-MM-DD HH:mm:ss'
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}),
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winston.format.errors({ stack: true }),
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winston.format.json(),
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winston.format.printf(({ timestamp, level, message, stack, ...meta }) => {
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let log = `${timestamp} [${level.toUpperCase()}]: ${message}`;
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if (stack) {
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log += `\n${stack}`;
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}
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if (Object.keys(meta).length > 0) {
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log += `\n${JSON.stringify(meta, null, 2)}`;
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}
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return log;
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})
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);
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// 创建logger实例
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const logger = winston.createLogger({
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level: process.env.LOG_LEVEL || 'info',
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format: logFormat,
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defaultMeta: { service: 'bank-backend' },
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transports: [
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// 错误日志文件
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new winston.transports.File({
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filename: path.join(logDir, 'error.log'),
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level: 'error',
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maxsize: 5242880, // 5MB
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maxFiles: 5
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}),
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// 所有日志文件
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new winston.transports.File({
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filename: path.join(logDir, 'combined.log'),
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maxsize: 5242880, // 5MB
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maxFiles: 5
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})
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]
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});
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// 开发环境添加控制台输出
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if (process.env.NODE_ENV !== 'production') {
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logger.add(new winston.transports.Console({
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format: winston.format.combine(
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winston.format.colorize(),
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winston.format.simple()
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)
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}));
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}
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// 创建流对象用于HTTP请求日志
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logger.stream = {
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write: (message) => {
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logger.info(message.trim());
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}
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};
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module.exports = logger; |