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config/logger.js

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+const winston = require('winston');
+const path = require('path');
+
+// 创建日志目录
+const logDir = path.join(__dirname, '../logs');
+
+// 日志格式配置
+const logFormat = winston.format.combine(
+  winston.format.timestamp({
+    format: 'YYYY-MM-DD HH:mm:ss'
+  }),
+  winston.format.errors({ stack: true }),
+  winston.format.json()
+);
+
+// 控制台日志格式
+const consoleFormat = winston.format.combine(
+  winston.format.colorize(),
+  winston.format.timestamp({
+    format: 'YYYY-MM-DD HH:mm:ss'
+  }),
+  winston.format.printf(({ timestamp, level, message, ...meta }) => {
+    return `${timestamp} [${level}]: ${message} ${Object.keys(meta).length ? JSON.stringify(meta, null, 2) : ''}`;
+  })
+);
+
+// 创建logger实例
+const logger = winston.createLogger({
+  level: process.env.LOG_LEVEL || 'info',
+  format: logFormat,
+  defaultMeta: { service: 'integrated-system' },
+  transports: [
+    // 错误日志文件
+    new winston.transports.File({
+      filename: path.join(logDir, 'error.log'),
+      level: 'error',
+      maxsize: 5242880, // 5MB
+      maxFiles: 5
+    }),
+    // 所有日志文件
+    new winston.transports.File({
+      filename: path.join(logDir, 'combined.log'),
+      maxsize: 5242880, // 5MB
+      maxFiles: 5
+    })
+  ]
+});
+
+// 开发环境添加控制台输出
+if (process.env.NODE_ENV !== 'production') {
+  logger.add(new winston.transports.Console({
+    format: consoleFormat
+  }));
+}
+
+// 审计日志记录器
+const auditLogger = winston.createLogger({
+  level: 'info',
+  format: logFormat,
+  defaultMeta: { service: 'audit' },
+  transports: [
+    new winston.transports.File({
+      filename: path.join(logDir, 'audit.log'),
+      maxsize: 5242880, // 5MB
+      maxFiles: 10
+    })
+  ]
+});
+
+module.exports = {
+  logger,
+  auditLogger
+};