34 lines
931 B
Python
34 lines
931 B
Python
from flask import Blueprint, jsonify
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import sqlite3
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from flask_cors import cross_origin
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bp = Blueprint('shi1', __name__)
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def get_db_connection():
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conn = sqlite3.connect('agriculture.db')
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conn.row_factory = sqlite3.Row
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return conn
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@bp.route('/moisture', methods=['GET'])
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@cross_origin()
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def get_moisture_data():
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conn = get_db_connection()
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try:
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cur = conn.cursor()
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# 获取最近7条记录并按日期正序排列
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cur.execute('''
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SELECT record_date as date, moisture
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FROM (
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SELECT record_date, moisture
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FROM soil_moisture
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ORDER BY id DESC
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LIMIT 7
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)
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ORDER BY date ASC
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''')
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rows = cur.fetchall()
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return jsonify([dict(row) for row in rows])
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except Exception as e:
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return jsonify({'error': str(e)}), 500
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finally:
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conn.close() |