使用python寫一個接口

主要思路是：先從數據庫取出來數據，然後進行數據處理，最後寫接口供別人使用。
代碼奉上

#_*_coding=utf-8 _*
#__author__ = 'chubby_superman'

import pymysql
from flask import Flask
import flask_restful
import json
import demjson

db = pymysql.connect('r','sd','ab1234_','ptest')
def mysql_data(db):
    x = db.cursor()
    try:
        x.execute("select  * from order_trade WHERE id = 4;")
    except Exception as e:
        db.rollback()
    db.commit()
    db.close()
    return x.fetchall(),x.description #如果x.fetchone是空呢？怎麼處理
'''
mysql_data（）取數據庫數據
'''
a = mysql_data(db)
ziduan_list=[]
for i in range(len(a[1])):
    ziduan_list.append(a[1][i][0])
jsonData=[]
for row in a[0]:
    result = {}
    result[ziduan_list[0]]=row[0]
    result[ziduan_list[1]]=row[1]
    result[ziduan_list[2]]=row[2]
    result[ziduan_list[3]]=row[3]
    result[ziduan_list[4]]=row[4]
    result[ziduan_list[5]]=row[5]
    result[ziduan_list[6]]=row[6]
    result[ziduan_list[7]]=row[7]
    result[ziduan_list[8]]=demjson.decode(row[8])
    result[ziduan_list[9]]=row[9]
    result[ziduan_list[10]]=int(row[10])
    result[ziduan_list[11]]=int(row[11])
    result[ziduan_list[12]]=int(row[12])
    result[ziduan_list[13]]=int(row[13])
    result[ziduan_list[14]]=row[14]
    result[ziduan_list[15]]=row[15]
    result[ziduan_list[16]]=row[16]
    result[ziduan_list[17]]=row[17]
    result[ziduan_list[18]]=row[18]
    result[ziduan_list[19]]=row[19]
    result[ziduan_list[20]]=row[20]
    result[ziduan_list[21]]=row[21]
    result[ziduan_list[22]]=row[22]
    result[ziduan_list[23]]=row[23]
    result[ziduan_list[24]]=row[24]
    result[ziduan_list[25]]=row[25]
    result[ziduan_list[26]]=row[26]
    jsonData.append(result)
results = json.dumps(jsonData,ensure_ascii=False)
results = json.loads(results)
'''
處理數據
'''
app = Flask(__name__)
api = flask_restful.Api(app)
class HelloWorld(flask_restful.Resource):
    def get(self):
        return results
api.add_resource(HelloWorld, '/')
'''
寫接口
'''
if __name__ == '__main__':
    app.run(host='127.0.0.1',port=5000)