Update .gitignore and add files

back/blueprints/weather.py

@@ -0,0 +1,110 @@
+import time
+from os import times
+
+from flask import Blueprint, jsonify, request, current_app
+import sqlite3
+import traceback
+
+bp = Blueprint('weather', __name__, url_prefix='/api/weather')
+
+
+# 修复数据库查询和结果处理
+@bp.route('/data', methods=['GET'])
+def get_temperature_data():
+    t1 = time.time()
+    start_time = request.args.get('start_time')
+    end_time = request.args.get('end_time')
+
+    if not start_time or not end_time:
+        return jsonify({"success": False, "message": "缺少时间参数 (start_time/end_time)"}), 400
+
+    try:
+        # 获取数据库连接
+        db = current_app.get_db()
+        cursor = db.cursor()
+
+        # 执行查询
+        query = """
+            SELECT 
+                device_id,
+                timestamp, 
+                temperature, 
+                humidity 
+            FROM temperature_data 
+            WHERE timestamp BETWEEN ? AND ? 
+            ORDER BY device_id, timestamp ASC
+        """
+        cursor.execute(query, (start_time, end_time))
+        data = cursor.fetchall()
+
+        # 检查查询结果
+        if not data:
+            print(f"查询无结果: {start_time} 到 {end_time}")
+            return jsonify({"success": True, "data": []}), 200
+
+        # 将结果转换为字典列表
+        # 修复：使用cursor.description获取列名
+        columns = [column[0] for column in cursor.description]
+        result = []
+        for row in data:
+            result.append(dict(zip(columns, row)))
+
+        print(f"查询成功，返回 {len(result)} 条记录")
+        t2 = time.time()
+        print('111111111111111111111111111111', t2-t1)
+        return jsonify({"success": True, "data": result}), 200
+
+    except sqlite3.Error as e:
+        db.rollback()
+        print(f"数据库错误: {e}")
+        traceback.print_exc()  # 打印完整堆栈跟踪
+        return jsonify({"success": False, "message": f"数据库操作失败: {str(e)}"}), 500
+    except Exception as e:
+        print(f"服务器错误: {e}")
+        traceback.print_exc()  # 打印完整堆栈跟踪
+        return jsonify({"success": False, "message": f"服务器内部错误: {str(e)}"}), 500
+
+
+@bp.route('/latest', methods=['GET'])
+def get_latest_data():
+    device_id = request.args.get('device_id', type=int)
+    if not device_id:
+        return jsonify({"success": False, "message": "缺少设备ID参数 (device_id)"}), 400
+
+    try:
+        db = current_app.get_db()
+        cursor = db.cursor()
+        cursor.execute("""
+            SELECT 
+                timestamp, 
+                temperature, 
+                humidity 
+            FROM temperature_data 
+            WHERE device_id = ? 
+            ORDER BY timestamp DESC 
+            LIMIT 1
+        """, (device_id,))
+
+        row = cursor.fetchone()
+        if not row:
+            return jsonify({"success": False, "message": f"设备ID {device_id} 无数据"}), 404
+
+        # 修复：确保结果转换为字典
+        columns = [column[0] for column in cursor.description]
+        result = dict(zip(columns, row))
+
+        return jsonify({
+            "success": True,
+            "data": {
+                "timestamp": result['timestamp'],  # 假设数据库中已经是字符串格式
+                "temperature": result['temperature'],
+                "humidity": result['humidity'],
+                "device_id": device_id
+            }
+        }), 200
+
+    except sqlite3.Error as e:
+        db.rollback()
+        return jsonify({"success": False, "message": f"数据库错误: {str(e)}"}), 500
+    except Exception as e:
+        return jsonify({"success": False, "message": f"服务器错误: {str(e)}"}), 500