我想在我的项目中添加一个 rest api，因此我需要一个选择性的 mysql 语句 bt 我总是回来
{ “错误”:“(1054，你\“'where子句'中的未知列'无'\”)”
代码有什么问题？我需要如何在 mysql select 语法中正确转义 id？？
#!/usr/bin/python
from flask import Flask
from flask_restful import Resource, Api
from flask_restful import reqparse
from flask.ext.mysql import MySQL
mysql = MySQL()
app = Flask(__name__)
# MySQL configurations
app.config['MYSQL_DATABASE_USER'] = 'pi'
app.config['MYSQL_DATABASE_PASSWORD'] = 'xxxxxxxx'
app.config['MYSQL_DATABASE_DB'] = 'xxxxxxxx'
app.config['MYSQL_DATABASE_HOST'] = 'localhost'
mysql.init_app(app)
api = Api(app)
class test(Resource):
def post(self):
try:
# Parse the arguments
parser = reqparse.RequestParser()
parser.add_argument('ID', type=str, help='Id of Item')
args = parser.parse_args()
id = str(args['ID'])
conn = mysql.connect()
cursor = conn.cursor()
cursor.execute("SELECT * FROM `PowerSystem` WHERE ID=$(id)")
data = cursor.fetchall()
items_list=[];
for item in data:
i = {
'ID':str(item[0]),
'Timestamp':str(item[1]),
'batteryVoltage':str(item[2]),
'batteryCurrent':str(item[3]),
'solarVoltage':str(item[4]),
'solarCurrent':str(item[5]),
'loadVoltage':str(item[6]),
'loadCurrent':str(item[7]),
'batteryPower':str(item[8]),
'solarPower':str(item[9]),
'loadPower':str(item[10]),
'batteryCharge':str(item[11])
}
items_list.append(i)
return {'StatusCode':'200$(_id)','Items':items_list}
except Exception as e:
return {'error': str(e)}
api.add_resource(test, '/test')
if __name__ == '__main__':
app.run(debug=True,host='0.0.0.0')
app.run(debug=True,host='0.0.0.0')
最佳答案
执行语句不正确，模式应该是cursor.execute( <select statement string>, <tuple>) , 将您的语句更改为:
cursor.execute("SELECT * FROM `PowerSystem` WHERE ID=%s",(id,))
关于Python flask 休息 api，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44428455/