Update .gitignore and add files

back/blueprints/shi2.py

@@ -0,0 +1,52 @@
+from flask import Blueprint, request, jsonify
+import sqlite3
+from collections import defaultdict
+import traceback
+
+bp = Blueprint('shi2', __name__)
+
+
+def get_db_connection():
+    conn = sqlite3.connect('agriculture.db')
+    conn.row_factory = sqlite3.Row
+    return conn
+
+
+@bp.route('/device-moisture', methods=['GET'])
+def get_device_moisture_data():
+    # 固定查询2025-05-27的数据
+    query_date = '2025-05-27'
+    start_time = '00:00:00'
+    end_time = '23:59:59'
+
+    conn = get_db_connection()
+    try:
+        cur = conn.cursor()
+        # 修正表名和字段名，使用temperature_data表中的实际字段
+        cur.execute('''
+            SELECT device_id, humidity as moisture, timestamp
+            FROM temperature_data
+            WHERE DATE(timestamp) = ? 
+              AND TIME(timestamp) BETWEEN ? AND ?
+            ORDER BY device_id, timestamp
+        ''', (query_date, start_time, end_time))
+
+        rows = cur.fetchall()
+
+        # 按设备ID分组湿度数据（修正字段引用为humidity）
+        device_data = defaultdict(list)
+        for row in rows:
+            device_id = row['device_id']
+            moisture = float(row['moisture'])  # 这里使用别名moisture
+            device_data[device_id].append(moisture)
+
+        if not device_data:
+            return jsonify({}), 200
+
+        return jsonify(device_data)
+    except Exception as e:
+        print(f"数据库查询错误: {str(e)}")
+        traceback.print_exc()
+        return jsonify({'error': '数据库查询失败，请检查日志'}), 500
+    finally:
+        conn.close()