如何在python中使用flask框架将数据解析到android

你好，我有这段python代码

from flask import Flask
app = Flask(__name__)
@app.route("/")
def main():

    import mysql.connector

    cnx = mysql.connector.connect(user='root', password='',
                                  host='127.0.0.1', database='air_quality')
    cursor = cnx.cursor()
    query = ("SELECT coords.x,coords.y, pollution.* FROM coords ,pollution WHERE coords.id =pollution.id ")
    data=cursor.execute(query) 
    data = cursor.fetchall()
    tmp="test"
    for row in data:    
       tmp+="{''x'':''"+row[0] +"'',''y'':''"+row[1] +"'',''network'':''" +row[7] +"'',''country_code'':''" + row[3] +"',''pollutant'':''" +row[4] +"'',''numeric_val'':''" +row[5] +"'',''date'':''" +row[6] +"''}"
    return tmp    
app.run(threaded=True)

我想用android studio制作一个应用程序，使用我数据库中的数据，根据我的（x，y）在谷歌地图上创建标记。我如何将这些数据解析到android中，因为我只使用json格式进行搜索。我必须将响应格式化为json吗？我该怎么做？当我运行代码时，我会在浏览器（）上查看我的记录！ 样本：

test{''x'':''-13.860830000250354'',''y'':''28.498380000027481'',''network'':''CASA PALACIO-PUERTO DEL ROSARIO'',''country_code'':''ES',''pollutant'':''PM10'',''numeric_val'':''22'',''date'':''2015-10-17''}

{''x'':''-17.771554000133261'',''y'':''28.645396000388093'',''network'':''SAN ANTONIO-BRE?A BAJA'',''country_code'':''ES',''pollutant'':''PM10'',''numeric_val'':''16'',''date'':''2015-10-17''}