const { createLogger, format, transports } = require('winston');
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require('winston-daily-rotate-file');
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const { combine, timestamp, label, printf } = format;
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function formatDate(date) {
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const year = date.getFullYear();
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const month = String(date.getMonth() + 1).padStart(2, '0');
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const day = String(date.getDate()).padStart(2, '0');
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const hours = String(date.getHours()).padStart(2, '0');
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const minutes = String(date.getMinutes()).padStart(2, '0');
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const seconds = String(date.getSeconds()).padStart(2, '0');
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return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
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}
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// 自定义日志格式
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const myFormat = printf(({ level, message, label, timestamp }) => {
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const formattedTimestamp = formatDate(new Date(timestamp));
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return `${formattedTimestamp} [${label}] ${level}: ${message}`;
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});
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// 创建日志记录器
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const logger = createLogger({
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level: 'info', // 设置最低日志级别
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format: combine(
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label({ label: 'dataSocketService' }), // 可选：给日志添加标签
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timestamp(), // 添加时间戳
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myFormat // 使用自定义格式
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),
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transports: [
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new transports.Console(), // 输出到控制台（可选）
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new transports.DailyRotateFile({
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filename: 'logs/application-%DATE%.log', // 日志文件名模式
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datePattern: 'YYYY-MM-DD', // 日期格式
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zippedArchive: true, // 归档旧日志文件时压缩
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maxSize: '20m', // 文件最大大小
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maxFiles: '14d', // 保留最近14天的日志文件
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}),
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],
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});
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module.exports = logger;
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