20250819corp
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@@ -1,75 +1,188 @@
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from flask import Flask, jsonify
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import sqlite3
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from datetime import datetime
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from flask import Blueprint, jsonify, request
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# 导入数据库工具
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from db_utils import get_db_connection, close_db_connection
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# 创建Flask蓝图
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api_bp = Flask(__name__)
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api_bp = Blueprint('api', __name__)
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# 连接数据库的辅助函数
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def get_db_connection():
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conn = sqlite3.connect('car_info.db')
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conn.row_factory = sqlite3.Row # 使返回的数据可以通过列名访问
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return conn
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# API函数1: 返回所有的参数信息
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# API函数1: 返回最新的参数配置记录
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@api_bp.route('/api/parameters', methods=['GET'])
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def get_all_parameters():
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def get_parameters():
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try:
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# 连接数据库
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conn = get_db_connection()
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cursor = conn.cursor()
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# 查询所有参数配置记录
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# 查询所有参数配置记录并只返回第一条（最新的一条）
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cursor.execute("""
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SELECT id, param1, param2, param3, param4, param5, update_time
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FROM parameter_config
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ORDER BY update_time DESC
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LIMIT 1
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""")
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# 获取第一条查询结果
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row = cursor.fetchone()
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# 关闭数据库连接
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close_db_connection(conn)
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# 如果没有查询到数据
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if not row:
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return jsonify({
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'success': False,
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'error': '未找到参数配置记录',
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'data': None
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}), 404
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# 格式化查询结果
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parameter = {
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'id': row[0],
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'param1': row[1],
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'param2': row[2],
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'param3': row[3],
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'param4': row[4],
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'param5': row[5],
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'update_time': row[6]
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}
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# 返回JSON格式的数据
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return jsonify({
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'success': True,
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'data': parameter
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})
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except Exception as e:
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# 确保在异常情况下也关闭连接
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if 'conn' in locals() and conn:
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close_db_connection(conn)
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return jsonify({
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'success': False,
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'error': str(e),
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'data': []
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}), 500
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# API函数2: 返回query_history表中所有results_count=-1的数据
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@api_bp.route('/api/pending-queries', methods=['GET'])
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def get_pending_queries():
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try:
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# 连接数据库
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conn = get_db_connection()
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cursor = conn.cursor()
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# 查询query_history表中results_count=-1的所有数据
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cursor.execute("""
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SELECT id, department, query_date, plate_number, phone, results_count, query_ip
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FROM query_history
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WHERE results_count = -1
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ORDER BY query_date DESC
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""")
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# 获取所有查询结果
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rows = cursor.fetchall()
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# 关闭数据库连接
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conn.close()
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# 如果没有查询到数据
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if not rows:
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return jsonify({
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'success': False,
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'error': '未找到参数配置记录',
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'data': []
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}), 404
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close_db_connection(conn)
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# 格式化查询结果
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parameters_list = []
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pending_queries = []
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for row in rows:
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parameters_list.append({
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pending_query = {
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'id': row['id'],
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'param1': row['param1'],
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'param2': row['param2'],
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'param3': row['param3'],
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'param4': row['param4'],
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'param5': row['param5'],
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'update_time': row['update_time']
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})
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'department': row['department'],
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'query_date': row['query_date'],
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'plate_number': row['plate_number'],
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'phone': row['phone'],
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'results_count': row['results_count'],
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'query_ip': row['query_ip']
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}
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pending_queries.append(pending_query)
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# 返回JSON格式的参数信息
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# 返回JSON格式的数据
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return jsonify({
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'success': True,
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'message': '参数信息获取成功',
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'data': parameters_list,
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'total': len(parameters_list)
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}), 200
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'data': pending_queries,
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'count': len(pending_queries)
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})
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except Exception as e:
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# 处理异常情况
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# 确保在异常情况下也关闭连接
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if 'conn' in locals() and conn:
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close_db_connection(conn)
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return jsonify({
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'success': False,
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'error': f'获取参数信息失败: {str(e)}',
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'error': str(e),
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'data': []
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}), 500
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# 如果直接运行此文件（用于测试）
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if __name__ == '__main__':
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# 在生产环境中不应使用debug=True
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api_bp.run(debug=True)
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# API函数3: 更新query_history表中对应记录的results_count值
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@api_bp.route('/api/update-query-result', methods=['POST'])
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def update_query_result():
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try:
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# 获取前端提交的数据
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data = request.json
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if not data:
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return jsonify({
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'success': False,
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'error': '请求数据不能为空',
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'data': None
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}), 400
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# 检查必要的字段是否存在
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if 'id' not in data or 'results_count' not in data:
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return jsonify({
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'success': False,
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'error': '缺少必要的字段: id 或 results_count',
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'data': None
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}), 400
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# 获取id和results_count值
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query_id = data['id']
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results_count = data['results_count']
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# 连接数据库
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conn = get_db_connection()
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cursor = conn.cursor()
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# 更新query_history表中的对应记录
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cursor.execute("""
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UPDATE query_history
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SET results_count = ?
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WHERE id = ?
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""", (results_count, query_id))
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# 提交更改
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conn.commit()
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# 获取受影响的行数
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affected_rows = cursor.rowcount
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# 关闭数据库连接
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close_db_connection(conn)
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# 检查是否有记录被更新
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if affected_rows == 0:
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return jsonify({
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'success': False,
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'error': '未找到id为 {} 的记录'.format(query_id),
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'data': None
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}), 404
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# 返回成功响应
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return jsonify({
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'success': True,
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'message': '记录更新成功',
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'data': {
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'id': query_id,
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'results_count': results_count
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}
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})
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except Exception as e:
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# 确保在异常情况下也关闭连接
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if 'conn' in locals() and conn:
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close_db_connection(conn)
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return jsonify({
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'success': False,
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'error': str(e),
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'data': None
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}), 500
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