增加日志打印

mvcar/backend/app.py

@@ -1,3 +1,6 @@
+# backend/app.py
+import logging
+from logging.handlers import RotatingFileHandler
 from flask import Flask, jsonify, request
 from flask_cors import CORS
 import sqlite3
@@ -7,9 +10,34 @@ import os
 basedir = os.path.abspath(os.path.dirname(__file__))
 db_path = os.path.join(basedir, '..', 'data', 'cars.db')
 
+# 创建 logs 目录
+logs_dir = os.path.join(basedir, '..', 'logs')
+os.makedirs(logs_dir, exist_ok=True)
+
+# 配置日志
+log_formatter = logging.Formatter(
+    '%(asctime)s %(levelname)s %(name)s %(message)s'
+)
+log_file = os.path.join(logs_dir, 'app.log')
+
+# 创建 rotating file handler (最大5MB，保留5个备份)
+file_handler = RotatingFileHandler(
+    log_file, 
+    maxBytes=5*1024*1024,  # 5MB
+    backupCount=5
+)
+file_handler.setFormatter(log_formatter)
+file_handler.setLevel(logging.INFO)
+
+# 创建 logger
 app = Flask(__name__)
+app.logger.addHandler(file_handler)
+app.logger.setLevel(logging.INFO)
+
+# 添加 CORS 支持
 CORS(app)
 
+# 数据库连接函数
 def get_db_connection():
     conn = sqlite3.connect(db_path)
     conn.row_factory = sqlite3.Row
@@ -17,37 +45,65 @@ def get_db_connection():
 
 @app.route('/api/cars', methods=['GET'])
 def get_all_cars():
-    conn = get_db_connection()
+    app.logger.info('获取所有车辆信息')
-    cars = conn.execute('SELECT * FROM cars').fetchall()
+    try:
-    conn.close()
+        conn = get_db_connection()
-    
+        cars = conn.execute('SELECT * FROM cars').fetchall()
-    cars_list = [dict(car) for car in cars]
+        conn.close()
-    return jsonify(cars_list)
+        
+        cars_list = [dict(car) for car in cars]
+        app.logger.info(f'成功获取 {len(cars_list)} 条车辆记录')
+        return jsonify(cars_list)
+    except Exception as e:
+        app.logger.error(f'获取所有车辆信息时出错: {str(e)}')
+        return jsonify({'error': '服务器内部错误'}), 500
 
 @app.route('/api/cars/search', methods=['GET'])
 def search_car():
     plate = request.args.get('plate', '')
+    app.logger.info(f'搜索车牌号码: {plate}')
     
     if not plate:
+        app.logger.warning('用户未提供车牌号码')
         return jsonify({'error': '请输入车牌号码'}), 400
     
-    conn = get_db_connection()
+    try:
-    cars = conn.execute('SELECT * FROM cars WHERE plate LIKE ?', (f'%{plate}%',)).fetchall()
+        conn = get_db_connection()
-    conn.close()
+        cars = conn.execute('SELECT * FROM cars WHERE plate LIKE ?', (f'%{plate}%',)).fetchall()
-    
+        conn.close()
-    cars_list = [dict(car) for car in cars]
+        
-    return jsonify(cars_list)
+        cars_list = [dict(car) for car in cars]
+        app.logger.info(f'搜索 "{plate}" 返回 {len(cars_list)} 条结果')
+        return jsonify(cars_list)
+    except Exception as e:
+        app.logger.error(f'搜索车牌号码时出错: {str(e)}')
+        return jsonify({'error': '服务器内部错误'}), 500
 
 @app.route('/api/cars/<plate>', methods=['GET'])
 def get_car_by_plate(plate):
-    conn = get_db_connection()
+    app.logger.info(f'查询特定车牌号码: {plate}')
-    car = conn.execute('SELECT * FROM cars WHERE plate = ?', (plate,)).fetchone()
-    conn.close()
     
-    if car is None:
+    try:
-        return jsonify({'error': '未找到该车牌号码对应的车主信息'}), 404
+        conn = get_db_connection()
-    
+        car = conn.execute('SELECT * FROM cars WHERE plate = ?', (plate,)).fetchone()
-    return jsonify(dict(car))
+        conn.close()
+        
+        if car is None:
+            app.logger.warning(f'未找到车牌号码: {plate}')
+            return jsonify({'error': '未找到该车牌号码对应的车主信息'}), 404
+        
+        app.logger.info(f'成功找到车牌号码: {plate}')
+        return jsonify(dict(car))
+    except Exception as e:
+        app.logger.error(f'查询特定车牌时出错: {str(e)}')
+        return jsonify({'error': '服务器内部错误'}), 500
+
+# 添加一个根路径用于健康检查
+@app.route('/', methods=['GET'])
+def health_check():
+    app.logger.info('健康检查请求')
+    return jsonify({'status': 'ok', 'message': '服务正常运行'})
 
 if __name__ == '__main__':
+    app.logger.info('启动 Flask 应用')
     app.run(debug=True, host='0.0.0.0', port=5000)

mvcar/backend/requirements.txt

@@ -1,2 +1,3 @@
+# backend/requirements.txt
 Flask==2.3.2
 flask-cors==4.0.0

mvcar/backend/view_logs.py

@@ -0,0 +1,24 @@
+# backend/view_logs.py
+import os
+
+# 获取当前文件所在目录
+basedir = os.path.abspath(os.path.dirname(__file__))
+log_file = os.path.join(basedir, '..', 'logs', 'app.log')
+
+def view_logs(lines=20):
+    """查看最新的日志条目"""
+    try:
+        with open(log_file, 'r', encoding='utf-8') as f:
+            all_lines = f.readlines()
+            # 获取最后几行
+            latest_lines = all_lines[-lines:] if len(all_lines) > lines else all_lines
+            print(f"最新 {len(latest_lines)} 条日志:")
+            for line in latest_lines:
+                print(line.strip())
+    except FileNotFoundError:
+        print("日志文件不存在，请先运行应用程序")
+    except Exception as e:
+        print(f"读取日志文件时出错: {e}")
+
+if __name__ == '__main__':
+    view_logs()

mvcar/frontend/js/result.js

@@ -1,4 +1,7 @@
+// frontend/js/result.js
 document.addEventListener('DOMContentLoaded', function() {
+    console.log('页面加载完成 - 挪车电话结果页面');
+    
     const phoneNumberElement = document.getElementById('phoneNumber');
     const plateNumberElement = document.getElementById('plateNumber');
     const carBrandElement = document.getElementById('carBrand');
@@ -6,9 +9,11 @@ document.addEventListener('DOMContentLoaded', function() {
 
     // 从 sessionStorage 获取车辆信息
     const carInfoJson = sessionStorage.getItem('carInfo');
+    console.log('从 sessionStorage 获取车辆信息');
     
     if (carInfoJson) {
         const carInfo = JSON.parse(carInfoJson);
+        console.log(`车辆信息: ${JSON.stringify(carInfo)}`);
         
         // 显示车辆信息
         phoneNumberElement.textContent = carInfo.phone;
@@ -17,7 +22,9 @@ document.addEventListener('DOMContentLoaded', function() {
         
         // 设置拨号链接
         callButton.href = 'tel:' + carInfo.phone.replace(/-/g, '');
+        console.log(`设置拨号链接: ${callButton.href}`);
     } else {
+        console.warn('未找到车辆信息，重定向到搜索页面');
         // 如果没有车辆信息，返回搜索页面
         window.location.href = 'index.html';
     }

mvcar/frontend/js/script.js

@@ -1,17 +1,22 @@
+// frontend/js/script.js
 document.addEventListener('DOMContentLoaded', function() {
     const searchButton = document.getElementById('searchButton');
     const licensePlateInput = document.getElementById('licensePlate');
     const errorMessage = document.getElementById('errorMessage');
 
+    console.log('页面加载完成 - 挪车电话查询页面');
+    
     // 添加搜索频率限制
     let lastSearchTime = 0;
     const SEARCH_DELAY = 1000; // 1秒内只能搜索一次
 
     searchButton.addEventListener('click', function() {
         const plate = licensePlateInput.value.trim();
+        console.log(`用户尝试搜索车牌号码: ${plate}`);
         
         // 检查输入长度
         if (plate.length < 3) {
+            console.warn('输入字符少于3个');
             showError('请输入至少3个字符进行搜索');
             return;
         }
@@ -19,33 +24,41 @@ document.addEventListener('DOMContentLoaded', function() {
         // 检查搜索频率
         const currentTime = new Date().getTime();
         if (currentTime - lastSearchTime < SEARCH_DELAY) {
+            console.warn('搜索过于频繁');
             showError('搜索过于频繁，请稍后再试');
             return;
         }
         lastSearchTime = currentTime;
 
         if (!plate) {
+            console.warn('未输入车牌号码');
             showError('请输入车牌号码');
             return;
         }
 
         // 从后端API获取数据
+        console.log(`发送请求到: http://localhost:5000/api/cars/search?plate=${encodeURIComponent(plate)}`);
         fetch(`http://localhost:5000/api/cars/search?plate=${encodeURIComponent(plate)}`)
             .then(response => {
+                console.log(`收到响应状态: ${response.status}`);
                 if (!response.ok) {
                     throw new Error('网络响应错误');
                 }
                 return response.json();
             })
             .then(data => {
+                console.log(`收到数据，共 ${data.length} 条记录`);
                 if (data.length > 0) {
                     // 取第一个匹配的结果
                     const carInfo = data[0];
+                    console.log(`找到车辆信息: ${JSON.stringify(carInfo)}`);
                     // 将车辆信息存储到 sessionStorage
                     sessionStorage.setItem('carInfo', JSON.stringify(carInfo));
+                    console.log('跳转到结果页面');
                     // 跳转到结果页面
                     window.location.href = 'result.html';
                 } else {
+                    console.warn('未找到匹配的车辆信息');
                     showError('没有找到该车牌号码对应的车主信息');
                 }
             })
@@ -58,16 +71,19 @@ document.addEventListener('DOMContentLoaded', function() {
     // 回车键触发搜索
     licensePlateInput.addEventListener('keypress', function(e) {
         if (e.key === 'Enter') {
+            console.log('用户按下回车键触发搜索');
             searchButton.click();
         }
     });
 
     function showError(message) {
+        console.log(`显示错误信息: ${message}`);
         errorMessage.textContent = message;
         errorMessage.style.display = 'block';
         
         // 3秒后隐藏错误信息
         setTimeout(() => {
+            console.log('隐藏错误信息');
             errorMessage.style.display = 'none';
         }, 3000);
     }