Add logging functionality and new log-related endpoints

- Integrated a logging service to redirect console outputs.
- Added new endpoints for managing logs:
  - Retrieve log file list
  - Read specific log file content
  - Fetch recent logs
  - Stream logs via Server-Sent Events
  - Search logs by keyword
  - Cleanup old log files
- Updated application metadata to include new log management features.

public/js/logs.js

@@ -0,0 +1,367 @@
+// 实时日志查看页面JavaScript
+
+class LogViewer {
+    constructor() {
+        this.eventSource = null;
+        this.logs = [];
+        this.maxLogs = 1000; // 最多保留1000条日志
+        this.autoScroll = true;
+        this.currentFilter = {
+            level: '',
+            keyword: ''
+        };
+        
+        this.init();
+    }
+
+    async init() {
+        console.log('初始化日志查看器...');
+        
+        // 绑定事件
+        this.bindEvents();
+        
+        // 加载日志文件列表
+        await this.loadLogFiles();
+        
+        // 加载最近日志
+        await this.loadRecentLogs();
+        
+        console.log('日志查看器初始化完成');
+    }
+
+    bindEvents() {
+        // 开始/停止实时日志流
+        document.getElementById('startStreamBtn').addEventListener('click', () => {
+            this.startStream();
+        });
+        
+        document.getElementById('stopStreamBtn').addEventListener('click', () => {
+            this.stopStream();
+        });
+        
+        // 清空日志
+        document.getElementById('clearLogsBtn').addEventListener('click', () => {
+            this.clearLogs();
+        });
+        
+        // 自动滚动切换
+        document.getElementById('autoScrollCheck').addEventListener('change', (e) => {
+            this.autoScroll = e.target.checked;
+            if (this.autoScroll) {
+                this.scrollToBottom();
+            }
+        });
+        
+        // 日志级别过滤
+        document.getElementById('logLevelFilter').addEventListener('change', (e) => {
+            this.currentFilter.level = e.target.value;
+            this.renderLogs();
+        });
+        
+        // 搜索
+        document.getElementById('searchBtn').addEventListener('click', () => {
+            this.searchLogs();
+        });
+        
+        document.getElementById('searchKeyword').addEventListener('keypress', (e) => {
+            if (e.key === 'Enter') {
+                this.searchLogs();
+            }
+        });
+        
+        // 日志文件选择
+        document.getElementById('logFileSelect').addEventListener('change', async (e) => {
+            const filename = e.target.value;
+            if (filename) {
+                await this.loadLogFile(filename);
+            } else {
+                await this.loadRecentLogs();
+            }
+        });
+    }
+
+    async loadLogFiles() {
+        try {
+            const response = await fetch('/api/history/logs/files?days=7');
+            const result = await response.json();
+            
+            if (result.success) {
+                const select = document.getElementById('logFileSelect');
+                // 保留"今日日志"选项
+                select.innerHTML = '<option value="">今日日志</option>';
+                
+                result.data.forEach(file => {
+                    const option = document.createElement('option');
+                    option.value = file.filename;
+                    option.textContent = `${file.date} (${this.formatFileSize(file.size)})`;
+                    select.appendChild(option);
+                });
+            }
+        } catch (error) {
+            console.error('加载日志文件列表失败:', error);
+            this.showAlert('加载日志文件列表失败', 'danger');
+        }
+    }
+
+    async loadRecentLogs() {
+        try {
+            const response = await fetch('/api/history/logs/recent?limit=100');
+            const result = await response.json();
+            
+            if (result.success) {
+                this.logs = result.data.map(log => ({
+                    timestamp: log.timestamp,
+                    level: log.level.toUpperCase(),
+                    message: log.message
+                }));
+                this.renderLogs();
+                this.updateLogCount();
+            }
+        } catch (error) {
+            console.error('加载最近日志失败:', error);
+            this.showAlert('加载日志失败', 'danger');
+        }
+    }
+
+    async loadLogFile(filename) {
+        try {
+            const response = await fetch(`/api/history/logs/file/${filename}?limit=500`);
+            const result = await response.json();
+            
+            if (result.success) {
+                this.logs = result.data.map(log => ({
+                    timestamp: log.timestamp,
+                    level: log.level.toUpperCase(),
+                    message: log.message
+                }));
+                this.renderLogs();
+                this.updateLogCount();
+            }
+        } catch (error) {
+            console.error('加载日志文件失败:', error);
+            this.showAlert('加载日志文件失败', 'danger');
+        }
+    }
+
+    startStream() {
+        if (this.eventSource) {
+            return; // 已经在运行
+        }
+
+        try {
+            this.eventSource = new EventSource('/api/history/logs/stream');
+            
+            this.eventSource.onopen = () => {
+                this.updateConnectionStatus(true);
+                document.getElementById('startStreamBtn').disabled = true;
+                document.getElementById('stopStreamBtn').disabled = false;
+                this.showAlert('实时日志流已连接', 'success');
+            };
+            
+            this.eventSource.onmessage = (event) => {
+                try {
+                    const data = JSON.parse(event.data);
+                    
+                    if (data.type === 'connected') {
+                        console.log('实时日志流连接成功');
+                    } else if (data.type === 'log') {
+                        this.addLog(data.data);
+                    } else if (data.type === 'heartbeat') {
+                        // 心跳包，保持连接
+                    }
+                } catch (error) {
+                    console.error('解析日志数据失败:', error);
+                }
+            };
+            
+            this.eventSource.onerror = (error) => {
+                console.error('实时日志流错误:', error);
+                this.updateConnectionStatus(false);
+                this.stopStream();
+                this.showAlert('实时日志流连接断开', 'warning');
+            };
+            
+        } catch (error) {
+            console.error('启动实时日志流失败:', error);
+            this.showAlert('启动实时日志流失败: ' + error.message, 'danger');
+        }
+    }
+
+    stopStream() {
+        if (this.eventSource) {
+            this.eventSource.close();
+            this.eventSource = null;
+            
+            this.updateConnectionStatus(false);
+            document.getElementById('startStreamBtn').disabled = false;
+            document.getElementById('stopStreamBtn').disabled = true;
+            
+            this.showAlert('实时日志流已停止', 'info');
+        }
+    }
+
+    addLog(logEntry) {
+        // 添加新日志
+        this.logs.push({
+            timestamp: logEntry.timestamp,
+            level: logEntry.level ? logEntry.level.toUpperCase() : 'INFO',
+            message: logEntry.message
+        });
+        
+        // 限制日志数量
+        if (this.logs.length > this.maxLogs) {
+            this.logs.shift();
+        }
+        
+        // 更新显示
+        this.renderLogs();
+        this.updateLogCount();
+        
+        // 自动滚动
+        if (this.autoScroll) {
+            setTimeout(() => this.scrollToBottom(), 10);
+        }
+    }
+
+    renderLogs() {
+        const container = document.getElementById('logContainer');
+        
+        // 过滤日志
+        let filteredLogs = this.logs;
+        
+        if (this.currentFilter.level) {
+            filteredLogs = filteredLogs.filter(log => log.level === this.currentFilter.level);
+        }
+        
+        if (this.currentFilter.keyword) {
+            const keyword = this.currentFilter.keyword.toLowerCase();
+            filteredLogs = filteredLogs.filter(log => 
+                log.message.toLowerCase().includes(keyword) ||
+                log.timestamp.toLowerCase().includes(keyword)
+            );
+        }
+        
+        // 渲染日志
+        container.innerHTML = filteredLogs.map(log => {
+            const levelClass = log.level || 'INFO';
+            const messageClass = log.level ? log.level.toLowerCase() : 'info';
+            
+            return `
+                <div class="log-entry ${messageClass}">
+                    <span class="log-timestamp">${log.timestamp || ''}</span>
+                    <span class="log-level ${levelClass}">${levelClass}</span>
+                    <span class="log-message">${this.escapeHtml(log.message)}</span>
+                </div>
+            `;
+        }).join('');
+    }
+
+    clearLogs() {
+        if (confirm('确定要清空所有日志吗？')) {
+            this.logs = [];
+            this.renderLogs();
+            this.updateLogCount();
+            this.showAlert('日志已清空', 'info');
+        }
+    }
+
+    searchLogs() {
+        const keyword = document.getElementById('searchKeyword').value.trim();
+        this.currentFilter.keyword = keyword;
+        this.renderLogs();
+    }
+
+    scrollToBottom() {
+        const container = document.getElementById('logContainer');
+        container.scrollTop = container.scrollHeight;
+        
+        // 显示自动滚动指示器
+        const indicator = document.getElementById('autoScrollIndicator');
+        if (this.autoScroll) {
+            indicator.classList.add('active');
+            setTimeout(() => {
+                indicator.classList.remove('active');
+            }, 2000);
+        }
+    }
+
+    updateLogCount() {
+        const count = this.logs.length;
+        document.getElementById('logCount').textContent = count;
+    }
+
+    updateConnectionStatus(connected) {
+        const indicator = document.getElementById('connectionStatus');
+        const text = document.getElementById('connectionStatusText');
+        
+        if (connected) {
+            indicator.className = 'status-indicator online';
+            text.textContent = '已连接';
+        } else {
+            indicator.className = 'status-indicator offline';
+            text.textContent = '未连接';
+        }
+    }
+
+    formatFileSize(bytes) {
+        if (bytes < 1024) return bytes + ' B';
+        if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(2) + ' KB';
+        return (bytes / (1024 * 1024)).toFixed(2) + ' MB';
+    }
+
+    escapeHtml(text) {
+        const div = document.createElement('div');
+        div.textContent = text;
+        return div.innerHTML;
+    }
+
+    showAlert(message, type = 'info') {
+        const alertContainer = document.getElementById('alertContainer');
+        if (!alertContainer) return;
+
+        const alertId = 'alert-' + Date.now();
+        const alertHtml = `
+            <div class="alert alert-${type} alert-dismissible fade show" role="alert" id="${alertId}">
+                <i class="bi bi-${this.getAlertIcon(type)}"></i>
+                ${message}
+                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+            </div>
+        `;
+
+        alertContainer.insertAdjacentHTML('beforeend', alertHtml);
+
+        // 自动移除提示
+        setTimeout(() => {
+            const alertElement = document.getElementById(alertId);
+            if (alertElement) {
+                alertElement.remove();
+            }
+        }, 3000);
+    }
+
+    getAlertIcon(type) {
+        const icons = {
+            'success': 'check-circle-fill',
+            'danger': 'exclamation-triangle-fill',
+            'warning': 'exclamation-triangle-fill',
+            'info': 'info-circle-fill'
+        };
+        return icons[type] || 'info-circle-fill';
+    }
+}
+
+// 全局变量
+let logViewer;
+
+// 页面加载完成后初始化
+document.addEventListener('DOMContentLoaded', () => {
+    logViewer = new LogViewer();
+});
+
+// 页面卸载时清理
+window.addEventListener('beforeunload', () => {
+    if (logViewer) {
+        logViewer.stopStream();
+    }
+});
+

public/logs.html

@@ -0,0 +1,234 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>实时日志查看 - 代理IP管理系统</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.7.2/font/bootstrap-icons.css" rel="stylesheet">
+    <link href="css/dashboard.css" rel="stylesheet">
+    <style>
+        #logContainer {
+            font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
+            font-size: 13px;
+            line-height: 1.6;
+            max-height: calc(100vh - 300px);
+            overflow-y: auto;
+            background: #1e1e1e;
+            color: #d4d4d4;
+            padding: 15px;
+            border-radius: 4px;
+        }
+        
+        .log-entry {
+            margin-bottom: 4px;
+            padding: 2px 0;
+            word-wrap: break-word;
+        }
+        
+        .log-timestamp {
+            color: #858585;
+            margin-right: 8px;
+        }
+        
+        .log-level {
+            padding: 2px 6px;
+            border-radius: 3px;
+            font-size: 11px;
+            font-weight: bold;
+            margin-right: 8px;
+        }
+        
+        .log-level.ERROR {
+            background: #f14c4c;
+            color: white;
+        }
+        
+        .log-level.WARN {
+            background: #cca700;
+            color: white;
+        }
+        
+        .log-level.INFO {
+            background: #007acc;
+            color: white;
+        }
+        
+        .log-level.DEBUG {
+            background: #808080;
+            color: white;
+        }
+        
+        .log-message {
+            color: #d4d4d4;
+        }
+        
+        .log-entry.error .log-message {
+            color: #f48771;
+        }
+        
+        .log-entry.warn .log-message {
+            color: #dcdcaa;
+        }
+        
+        .log-entry.info .log-message {
+            color: #4ec9b0;
+        }
+        
+        .log-entry.debug .log-message {
+            color: #808080;
+        }
+        
+        .auto-scroll-indicator {
+            position: fixed;
+            bottom: 20px;
+            right: 20px;
+            background: rgba(0, 0, 0, 0.8);
+            color: white;
+            padding: 10px 15px;
+            border-radius: 20px;
+            font-size: 12px;
+            z-index: 1000;
+            display: none;
+        }
+        
+        .auto-scroll-indicator.active {
+            display: block;
+        }
+    </style>
+</head>
+<body>
+    <!-- 导航栏 -->
+    <nav class="navbar navbar-expand-lg navbar-dark bg-primary">
+        <div class="container-fluid">
+            <a class="navbar-brand" href="index.html">
+                <i class="bi bi-shield-check"></i>
+                代理IP管理系统
+            </a>
+
+            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
+                <span class="navbar-toggler-icon"></span>
+            </button>
+
+            <div class="collapse navbar-collapse" id="navbarNav">
+                <ul class="navbar-nav me-auto">
+                    <li class="nav-item">
+                        <a class="nav-link" href="index.html">
+                            <i class="bi bi-speedometer2"></i> 仪表板
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="proxies.html">
+                            <i class="bi bi-list-ul"></i> 代理管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="history.html">
+                            <i class="bi bi-clock-history"></i> 执行历史
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="monitoring.html">
+                            <i class="bi bi-activity"></i> 系统监控
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link active" href="logs.html">
+                            <i class="bi bi-journal-text"></i> 实时日志
+                        </a>
+                    </li>
+                </ul>
+
+                <div class="navbar-nav">
+                    <div class="nav-link">
+                        <span class="status-indicator" id="connectionStatus"></span>
+                        <span id="connectionStatusText">连接中...</span>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </nav>
+
+    <!-- 主要内容 -->
+    <div class="container-fluid mt-4">
+        <!-- 控制面板 -->
+        <div class="card mb-3">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-md-6">
+                        <div class="btn-group" role="group">
+                            <button type="button" class="btn btn-primary" id="startStreamBtn">
+                                <i class="bi bi-play-fill"></i> 开始实时日志
+                            </button>
+                            <button type="button" class="btn btn-secondary" id="stopStreamBtn" disabled>
+                                <i class="bi bi-stop-fill"></i> 停止
+                            </button>
+                            <button type="button" class="btn btn-outline-secondary" id="clearLogsBtn">
+                                <i class="bi bi-x-circle"></i> 清空
+                            </button>
+                        </div>
+                        <div class="form-check form-switch mt-2">
+                            <input class="form-check-input" type="checkbox" id="autoScrollCheck" checked>
+                            <label class="form-check-label" for="autoScrollCheck">
+                                自动滚动
+                            </label>
+                        </div>
+                    </div>
+                    <div class="col-md-6 text-end">
+                        <div class="input-group" style="max-width: 400px; margin-left: auto;">
+                            <input type="text" class="form-control" id="searchKeyword" placeholder="搜索日志...">
+                            <button class="btn btn-outline-secondary" type="button" id="searchBtn">
+                                <i class="bi bi-search"></i> 搜索
+                            </button>
+                        </div>
+                        <div class="mt-2">
+                            <select class="form-select form-select-sm d-inline-block" id="logLevelFilter" style="width: auto;">
+                                <option value="">所有级别</option>
+                                <option value="ERROR">ERROR</option>
+                                <option value="WARN">WARN</option>
+                                <option value="INFO">INFO</option>
+                                <option value="DEBUG">DEBUG</option>
+                            </select>
+                            <span class="ms-2 text-muted small">
+                                日志数: <span id="logCount">0</span>
+                            </span>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <!-- 日志显示区域 -->
+        <div class="card">
+            <div class="card-header d-flex justify-content-between align-items-center">
+                <h6 class="mb-0">
+                    <i class="bi bi-terminal"></i> 实时日志流
+                </h6>
+                <div>
+                    <select class="form-select form-select-sm d-inline-block" id="logFileSelect" style="width: auto;">
+                        <option value="">今日日志</option>
+                    </select>
+                </div>
+            </div>
+            <div class="card-body p-0">
+                <div id="logContainer"></div>
+            </div>
+        </div>
+    </div>
+
+    <!-- 自动滚动指示器 -->
+    <div class="auto-scroll-indicator" id="autoScrollIndicator">
+        <i class="bi bi-arrow-down-circle"></i> 自动滚动中...
+    </div>
+
+    <!-- 提示消息容器 -->
+    <div class="position-fixed top-0 end-0 p-3" style="z-index: 1050">
+        <div id="alertContainer"></div>
+    </div>
+
+    <!-- JavaScript -->
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="js/logs.js"></script>
+</body>
+</html>
+

src/app.js

@@ -1,3 +1,6 @@
+// 首先加载日志服务，这样所有console输出都会被重定向
+const logger = require('./services/logger');
+
 const express = require('express');
 const path = require('path');
 const Database = require('./database/db');
@@ -76,11 +79,12 @@ class ProxyApp {
         name: 'Proxy IP Service',
         version: '1.0.0',
         description: '代理IP抓取、验证和管理服务',
-        web_interface: {
+          web_interface: {
           dashboard: '/index.html',
           proxies: '/proxies.html',
           history: '/history.html',
-          monitoring: '/monitoring.html'
+          monitoring: '/monitoring.html',
+          logs: '/logs.html'
         },
         endpoints: {
           'GET /api/health': '健康检查',
@@ -100,6 +104,10 @@ class ProxyApp {
           'DELETE /api/proxies/cleanup': '清理无效代理',
           'GET /api/history': '执行历史',
           'GET /api/history/logs/system': '系统日志',
+          'GET /api/history/logs/files': '获取日志文件列表',
+          'GET /api/history/logs/file/:filename': '读取日志文件',
+          'GET /api/history/logs/recent': '获取最近日志',
+          'GET /api/history/logs/stream': '实时日志流(SSE)',
           'GET /api/history/stats': '历史统计'
         },
         scheduler: {

src/routes/history.js

@@ -2,6 +2,7 @@ const express = require('express');
 const router = express.Router();
 const HistoryModel = require('../database/models/history');
 const LogsModel = require('../database/models/logs');
+const logger = require('../services/logger');
 
 // 获取执行历史列表
 router.get('/', async (req, res) => {
@@ -334,4 +335,218 @@ router.get('/export', async (req, res) => {
   }
 });
 
+// ==================== 文件日志相关接口 ====================
+
+// 获取日志文件列表
+router.get('/logs/files', (req, res) => {
+  try {
+    const days = parseInt(req.query.days) || 7;
+    const files = logger.getLogFiles(days);
+    
+    res.json({
+      success: true,
+      data: files
+    });
+  } catch (error) {
+    console.error('获取日志文件列表失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '获取日志文件列表失败',
+      message: error.message
+    });
+  }
+});
+
+// 读取日志文件内容
+router.get('/logs/file/:filename', (req, res) => {
+  try {
+    const filename = req.params.filename;
+    const limit = parseInt(req.query.limit) || 1000;
+    const offset = parseInt(req.query.offset) || 0;
+    
+    // 安全检查：确保文件名只包含允许的字符
+    if (!/^app-\d{4}-\d{2}-\d{2}\.log$/.test(filename)) {
+      return res.status(400).json({
+        success: false,
+        error: '无效的日志文件名格式'
+      });
+    }
+    
+    const result = logger.readLogFile(filename, limit, offset);
+    
+    res.json({
+      success: true,
+      data: result.logs,
+      pagination: {
+        total: result.total,
+        limit: result.limit,
+        offset: result.offset,
+        hasMore: result.offset + result.limit < result.total
+      }
+    });
+  } catch (error) {
+    console.error('读取日志文件失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '读取日志文件失败',
+      message: error.message
+    });
+  }
+});
+
+// 获取最近的实时日志
+router.get('/logs/recent', (req, res) => {
+  try {
+    const limit = Math.min(parseInt(req.query.limit) || 100, 500);
+    const logs = logger.getRecentLogs(limit);
+    
+    res.json({
+      success: true,
+      data: logs,
+      count: logs.length
+    });
+  } catch (error) {
+    console.error('获取最近日志失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '获取最近日志失败',
+      message: error.message
+    });
+  }
+});
+
+// 实时日志流（Server-Sent Events）
+router.get('/logs/stream', (req, res) => {
+  try {
+    // 设置SSE响应头
+    res.setHeader('Content-Type', 'text/event-stream');
+    res.setHeader('Cache-Control', 'no-cache');
+    res.setHeader('Connection', 'keep-alive');
+    res.setHeader('X-Accel-Buffering', 'no'); // 禁用Nginx缓冲
+    
+    // 发送初始连接确认
+    res.write('data: {"type":"connected","message":"实时日志流已连接"}\n\n');
+    
+    // 设置日志事件监听器
+    const emitLog = (logEntry) => {
+      try {
+        const data = JSON.stringify({
+          type: 'log',
+          data: logEntry
+        });
+        res.write(`data: ${data}\n\n`);
+      } catch (error) {
+        console.error('发送日志事件失败:', error);
+      }
+    };
+    
+    logger.addLogEmitter(emitLog);
+    
+    // 发送最近的日志
+    const recentLogs = logger.getRecentLogs(50);
+    recentLogs.forEach(logEntry => {
+      const data = JSON.stringify({
+        type: 'log',
+        data: logEntry
+      });
+      res.write(`data: ${data}\n\n`);
+    });
+    
+    // 保持连接：定期发送心跳
+    const heartbeat = setInterval(() => {
+      try {
+        res.write('data: {"type":"heartbeat","time":' + Date.now() + '}\n\n');
+      } catch (error) {
+        clearInterval(heartbeat);
+      }
+    }, 30000); // 每30秒发送一次心跳
+    
+    // 客户端断开连接时清理
+    req.on('close', () => {
+      clearInterval(heartbeat);
+      logger.removeLogEmitter(emitLog);
+      res.end();
+    });
+    
+    // 防止连接被意外关闭
+    req.on('error', () => {
+      clearInterval(heartbeat);
+      logger.removeLogEmitter(emitLog);
+    });
+    
+  } catch (error) {
+    console.error('建立日志流失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '建立日志流失败',
+      message: error.message
+    });
+  }
+});
+
+// 搜索文件日志
+router.get('/logs/search-file', (req, res) => {
+  try {
+    const keyword = req.query.keyword;
+    const date = req.query.date || null;
+    const limit = Math.min(parseInt(req.query.limit) || 500, 1000);
+    
+    if (!keyword || keyword.trim().length === 0) {
+      return res.status(400).json({
+        success: false,
+        error: '搜索关键词不能为空'
+      });
+    }
+    
+    const result = logger.searchLogs(keyword.trim(), date, limit);
+    
+    res.json({
+      success: true,
+      data: result.logs,
+      count: result.total,
+      keyword: keyword.trim(),
+      date: date
+    });
+  } catch (error) {
+    console.error('搜索文件日志失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '搜索文件日志失败',
+      message: error.message
+    });
+  }
+});
+
+// 清理旧日志文件
+router.delete('/logs/cleanup-files', (req, res) => {
+  try {
+    const daysToKeep = parseInt(req.body.days) || 30;
+    
+    if (daysToKeep < 1 || daysToKeep > 365) {
+      return res.status(400).json({
+        success: false,
+        error: '保留天数必须在1-365之间'
+      });
+    }
+    
+    const deletedCount = logger.cleanupOldLogs(daysToKeep);
+    
+    res.json({
+      success: true,
+      message: `清理完成，删除了 ${deletedCount} 个旧日志文件`,
+      data: {
+        deleted_count: deletedCount,
+        days_to_keep: daysToKeep
+      }
+    });
+  } catch (error) {
+    console.error('清理旧日志文件失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '清理旧日志文件失败',
+      message: error.message
+    });
+  }
+});
+
 module.exports = router;

src/services/logger.js

@@ -0,0 +1,353 @@
+const fs = require('fs');
+const path = require('path');
+
+class Logger {
+  constructor() {
+    this.logsDir = path.join(__dirname, '../../logs');
+    this.currentLogFile = null;
+    this.currentDate = null;
+    this.originalConsole = {
+      log: console.log,
+      error: console.error,
+      warn: console.warn,
+      info: console.info,
+      debug: console.debug
+    };
+    this.logBuffer = []; // 用于实时日志推送
+    this.maxBufferSize = 1000; // 最多缓存1000条日志
+    this.logEmitters = new Set(); // 支持多个日志监听器
+    
+    // 确保logs目录存在
+    this.ensureLogsDirectory();
+    
+    // 初始化今天的日志文件
+    this.initializeTodayLog();
+    
+    // 重定向console
+    this.redirectConsole();
+  }
+
+  ensureLogsDirectory() {
+    if (!fs.existsSync(this.logsDir)) {
+      fs.mkdirSync(this.logsDir, { recursive: true });
+      // 使用原始console，避免循环调用
+      this.originalConsole.log(`创建日志目录: ${this.logsDir}`);
+    }
+  }
+
+  getLogFileName(date = null) {
+    const logDate = date || new Date();
+    const dateStr = logDate.toISOString().slice(0, 10); // YYYY-MM-DD
+    return path.join(this.logsDir, `app-${dateStr}.log`);
+  }
+
+  initializeTodayLog() {
+    const today = new Date().toISOString().slice(0, 10);
+    
+    if (this.currentDate !== today) {
+      this.currentDate = today;
+      this.currentLogFile = this.getLogFileName();
+      
+      // 确保文件存在
+      if (!fs.existsSync(this.currentLogFile)) {
+        fs.writeFileSync(this.currentLogFile, '');
+      }
+    }
+  }
+
+  formatTimestamp() {
+    const now = new Date();
+    return now.toISOString().replace('T', ' ').slice(0, 19);
+  }
+
+  writeToFile(level, message) {
+    try {
+      // 检查是否需要切换到新的一天的日志文件
+      const today = new Date().toISOString().slice(0, 10);
+      if (this.currentDate !== today) {
+        this.initializeTodayLog();
+      }
+
+      const timestamp = this.formatTimestamp();
+      const logLine = `[${timestamp}] [${level.toUpperCase()}] ${message}\n`;
+      
+      // 写入文件
+      fs.appendFileSync(this.currentLogFile, logLine, 'utf8');
+      
+      // 添加到缓冲区用于实时推送
+      const logEntry = {
+        timestamp,
+        level,
+        message,
+        time: Date.now()
+      };
+      
+      this.logBuffer.push(logEntry);
+      
+      // 限制缓冲区大小
+      if (this.logBuffer.length > this.maxBufferSize) {
+        this.logBuffer.shift();
+      }
+      
+      // 触发实时日志事件（如果有监听器）
+      if (this.logEmitters.size > 0) {
+        this.logEmitters.forEach(emitFn => {
+          try {
+            emitFn(logEntry);
+          } catch (error) {
+            // 如果某个监听器出错，移除它
+            this.logEmitters.delete(emitFn);
+          }
+        });
+      }
+      
+    } catch (error) {
+      // 如果文件写入失败，至少输出到原始console
+      this.originalConsole.error('写入日志文件失败:', error);
+      this.originalConsole[level](message);
+    }
+  }
+
+  redirectConsole() {
+    // 重定向 console.log
+    console.log = (...args) => {
+      const message = args.map(arg => 
+        typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
+      ).join(' ');
+      
+      this.originalConsole.log(...args);
+      this.writeToFile('info', message);
+    };
+
+    // 重定向 console.error
+    console.error = (...args) => {
+      const message = args.map(arg => 
+        typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
+      ).join(' ');
+      
+      this.originalConsole.error(...args);
+      this.writeToFile('error', message);
+    };
+
+    // 重定向 console.warn
+    console.warn = (...args) => {
+      const message = args.map(arg => 
+        typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
+      ).join(' ');
+      
+      this.originalConsole.warn(...args);
+      this.writeToFile('warn', message);
+    };
+
+    // 重定向 console.info
+    console.info = (...args) => {
+      const message = args.map(arg => 
+        typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
+      ).join(' ');
+      
+      this.originalConsole.info(...args);
+      this.writeToFile('info', message);
+    };
+
+    // 重定向 console.debug（如果有的话）
+    if (console.debug) {
+      console.debug = (...args) => {
+        const message = args.map(arg => 
+          typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
+        ).join(' ');
+        
+        this.originalConsole.debug(...args);
+        this.writeToFile('debug', message);
+      };
+    }
+  }
+
+  // 获取日志文件列表
+  getLogFiles(days = 7) {
+    try {
+      const files = fs.readdirSync(this.logsDir);
+      const logFiles = files
+        .filter(file => file.startsWith('app-') && file.endsWith('.log'))
+        .map(file => {
+          const filePath = path.join(this.logsDir, file);
+          const stats = fs.statSync(filePath);
+          return {
+            filename: file,
+            date: file.replace('app-', '').replace('.log', ''),
+            size: stats.size,
+            modified: stats.mtime.toISOString()
+          };
+        })
+        .sort((a, b) => b.date.localeCompare(a.date))
+        .slice(0, days);
+      
+      return logFiles;
+    } catch (error) {
+      console.error('获取日志文件列表失败:', error);
+      return [];
+    }
+  }
+
+  // 读取日志文件内容
+  readLogFile(filename, limit = 1000, offset = 0) {
+    try {
+      const filePath = path.join(this.logsDir, filename);
+      
+      if (!fs.existsSync(filePath)) {
+        throw new Error('日志文件不存在');
+      }
+
+      // 读取文件内容
+      const content = fs.readFileSync(filePath, 'utf8');
+      const lines = content.split('\n').filter(line => line.trim());
+      
+      // 反转数组以获取最新的日志（最后的行）
+      const reversedLines = lines.reverse();
+      
+      // 分页
+      const paginatedLines = reversedLines.slice(offset, offset + limit);
+      
+      // 解析日志行
+      const logs = paginatedLines
+        .map(line => {
+          // 解析格式: [YYYY-MM-DD HH:mm:ss] [LEVEL] message
+          const match = line.match(/^\[([^\]]+)\] \[([^\]]+)\] (.+)$/);
+          if (match) {
+            return {
+              timestamp: match[1],
+              level: match[2].toLowerCase(),
+              message: match[3],
+              raw: line
+            };
+          }
+          return {
+            timestamp: null,
+            level: 'info',
+            message: line,
+            raw: line
+          };
+        })
+        .reverse(); // 再次反转，以时间正序显示
+      
+      return {
+        logs,
+        total: lines.length,
+        limit,
+        offset
+      };
+    } catch (error) {
+      console.error('读取日志文件失败:', error);
+      throw error;
+    }
+  }
+
+  // 获取实时日志流（从缓冲区）
+  getRecentLogs(limit = 100) {
+    return this.logBuffer.slice(-limit);
+  }
+
+  // 添加日志事件监听器（用于SSE）
+  addLogEmitter(emitFn) {
+    if (emitFn && typeof emitFn === 'function') {
+      this.logEmitters.add(emitFn);
+    }
+  }
+
+  // 移除日志事件监听器
+  removeLogEmitter(emitFn) {
+    this.logEmitters.delete(emitFn);
+  }
+
+  // 兼容旧API
+  setLogEmitter(emitFn) {
+    if (emitFn) {
+      this.addLogEmitter(emitFn);
+    } else {
+      // 如果传入null，清除所有监听器（为了兼容旧代码）
+      this.logEmitters.clear();
+    }
+  }
+
+  // 搜索日志
+  searchLogs(keyword, date = null, limit = 500) {
+    try {
+      const filename = date ? `app-${date}.log` : this.getLogFileName().split(path.sep).pop();
+      const filePath = path.join(this.logsDir, filename);
+      
+      if (!fs.existsSync(filePath)) {
+        return { logs: [], total: 0 };
+      }
+
+      const content = fs.readFileSync(filePath, 'utf8');
+      const lines = content.split('\n');
+      
+      const matchedLines = lines
+        .map((line, index) => {
+          if (line.toLowerCase().includes(keyword.toLowerCase())) {
+            const match = line.match(/^\[([^\]]+)\] \[([^\]]+)\] (.+)$/);
+            if (match) {
+              return {
+                timestamp: match[1],
+                level: match[2].toLowerCase(),
+                message: match[3],
+                raw: line,
+                lineNumber: index + 1
+              };
+            }
+            return {
+              timestamp: null,
+              level: 'info',
+              message: line,
+              raw: line,
+              lineNumber: index + 1
+            };
+          }
+          return null;
+        })
+        .filter(line => line !== null)
+        .slice(-limit); // 只返回最新的匹配结果
+      
+      return {
+        logs: matchedLines,
+        total: matchedLines.length
+      };
+    } catch (error) {
+      console.error('搜索日志失败:', error);
+      throw error;
+    }
+  }
+
+  // 清理旧日志文件（保留指定天数）
+  cleanupOldLogs(daysToKeep = 30) {
+    try {
+      const files = fs.readdirSync(this.logsDir);
+      const cutoffDate = new Date();
+      cutoffDate.setDate(cutoffDate.getDate() - daysToKeep);
+      const cutoffDateStr = cutoffDate.toISOString().slice(0, 10);
+
+      let deletedCount = 0;
+      
+      files.forEach(file => {
+        if (file.startsWith('app-') && file.endsWith('.log')) {
+          const dateStr = file.replace('app-', '').replace('.log', '');
+          if (dateStr < cutoffDateStr) {
+            const filePath = path.join(this.logsDir, file);
+            fs.unlinkSync(filePath);
+            deletedCount++;
+          }
+        }
+      });
+
+      return deletedCount;
+    } catch (error) {
+      console.error('清理旧日志失败:', error);
+      throw error;
+    }
+  }
+}
+
+// 创建单例
+const logger = new Logger();
+
+module.exports = logger;
+