Update .gitignore and add files

back/blueprints/tem.py

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+from flask import Blueprint, jsonify, request, g, current_app
+from werkzeug.exceptions import HTTPException
+import sqlite3
+import datetime
+
+import logging
+from collections import defaultdict
+
+# 配置日志
+logging.basicConfig(level=logging.DEBUG)
+logger = logging.getLogger('temperature_api')
+logger.setLevel(logging.DEBUG)
+
+# 创建蓝图
+tem_bp = Blueprint('tem', __name__, url_prefix='/api')
+
+
+def get_db():
+    """获取数据库连接"""
+    if 'db' not in g:
+        db_path = current_app.config.get('DATABASE', 'temperature.db')
+        logger.info(f"连接数据库: {db_path}")
+        try:
+            g.db = sqlite3.connect(
+                db_path,
+                check_same_thread=False,
+                detect_types=sqlite3.PARSE_DECLTYPES
+            )
+            g.db.row_factory = sqlite3.Row
+            logger.info("数据库连接成功")
+        except Exception as e:
+            logger.error(f"数据库连接失败: {str(e)}")
+            raise HTTPException(status_code=500, detail=f"数据库连接失败: {str(e)}")
+    return g.db
+
+
+def close_db(e=None):
+    """关闭数据库连接"""
+    db = g.pop('db', None)
+    if db is not None:
+        db.close()
+        logger.info("数据库连接已关闭")
+
+
+@tem_bp.teardown_app_request
+def teardown_request(exception):
+    """请求结束时关闭数据库连接"""
+    close_db()
+
+
+@tem_bp.route('/devices', methods=['GET'])
+def get_devices():
+    """获取所有设备列表（包含设备名称）"""
+    try:
+        logger.info("获取设备列表请求")
+        db = get_db()
+
+        # 查询设备表，获取id和device_name
+        cursor = db.execute("SELECT id, device_name FROM device")
+        devices = cursor.fetchall()
+
+        # 转换为前端需要的格式 {id: {device_name: name}}
+        device_dict = {str(device['id']): {'device_name': device['device_name']} for device in devices}
+
+        logger.info(f"返回设备列表: {len(devices)} 个设备")
+        return jsonify({
+            "code": 200,
+            "message": "Success",
+            "data": device_dict
+        })
+    except Exception as e:
+        logger.error(f"获取设备列表失败: {str(e)}", exc_info=True)
+        return jsonify({
+            "code": 500,
+            "message": f"服务器错误: {str(e)}"
+        }), 500
+
+
+@tem_bp.route('/temperature/device/<int:device_id>', methods=['GET'])
+def get_device_temperature(device_id):
+    """获取指定设备在2025-05-25至2025-05-29的温度数据"""
+    try:
+        logger.info(f"获取设备 {device_id} 温度数据")
+        db = get_db()
+
+        # 固定日期范围为2025-05-25至2025-05-29
+        start_date = datetime.date(2025, 5, 25)
+        end_date = datetime.date(2025, 5, 29)
+
+        logger.info(f"查询日期范围: {start_date} 至 {end_date}")
+
+        # 执行SQL查询
+        cursor = db.execute('''
+            SELECT 
+                date(timestamp) AS date,
+                ROUND(AVG(temperature), 1) AS avg_temp
+            FROM temperature_data
+            WHERE device_id = ? AND date(timestamp) BETWEEN ? AND ?
+            GROUP BY date(timestamp)
+            ORDER BY date(timestamp) ASC
+        ''', (device_id, start_date, end_date))
+
+        rows = cursor.fetchall()
+        logger.info(f"查询到 {len(rows)} 条数据")
+
+        # 处理结果
+        temperature_data = [
+            {
+                "date": row['date'],
+                "avg_temp": float(row['avg_temp'])
+            }
+            for row in rows
+        ]
+
+        return jsonify({
+            "code": 200,
+            "message": "Success",
+            "data": temperature_data
+        })
+
+    except Exception as e:
+        logger.error(f"获取温度数据失败: {str(e)}", exc_info=True)
+        return jsonify({
+            "code": 500,
+            "message": f"服务器错误: {str(e)}"
+        }), 500