110 lines
3.6 KiB
Python
110 lines
3.6 KiB
Python
|
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
|