Question

我有以下json：

{"sensors": 
        {"-KqYN_VeXCh8CZQFRusI": 
            {"bathroom_temp": 16,
             "date": "02/08/2017", 
             "fridge_level": 8,
             "kitchen_temp": 18, 
             "living_temp": 17, 
             "power_bathroom": 0, 
             "power_bathroom_value": 0, 
             "power_kit_0": 0
        }, 
        "-KqYPPffaTpft7B72Ow9": 
            {"bathroom_temp": 20, 
             "date": "02/08/2017", 
             "fridge_level": 19, 
             "kitchen_temp": 14, 
             "living_temp": 20, 
             "power_bathroom": 0, 
             "power_bathroom_value": 0
        },  
        "-KqYPUld3AOve8hnpnOy": 
            {"bathroom_temp": 23, 
             "date": "02/08/2017", 
             "fridge_level": 40, 
             "kitchen_temp": 11, 
             "living_temp": 10, 
             "power_bathroom": 1, 
             "power_bathroom_value": 81, 
        }
    }
}

这是我到目前为止的python代码：

from flask import Flask, render_template, json, url_for
from firebase import firebase
import os




firebase = firebase.FirebaseApplication('https://my-firebase-db-958b1.firebaseio.com/', None)
result = firebase.get('/Dublin-Ireland', None)
print "\n Json file created!\n"

data_temp = result.values()[0]

for key, value in data_temp.iteritems():
    print key
    print value
    print "\n\n"

使用当前代码，我能够查看键＆＃34; KqYN_VeXCh8CZQFRusI＆＃34;，＆＃34; KqYPPffaTpft7B72Ow9＆＃34;等等...以及这些键的值：

{"bathroom_temp": 16,
             "date": "02/08/2017", 
             "fridge_level": 8,
             "kitchen_temp": 18, 
             "living_temp": 17, 
             "power_bathroom": 0, 
             "power_bathroom_value": 0, 
             "power_kit_0": 0
        },

和

 {"bathroom_temp": 20, 
         "date": "02/08/2017", 
         "fridge_level": 19, 
         "kitchen_temp": 14, 
         "living_temp": 20, 
         "power_bathroom": 0, 
         "power_bathroom_value": 0
    },

我需要获取secondlevel键及其值。我试图为每个密钥设置一个文件（＆＃34; bathroom_temp＆＃34;，＆＃34; power_bathroom＆＃34;等等...）并保存文件中这些密钥的所有相应值。

例如，文件＆＃34; bathroom_temp.txt＆＃34;将具有值＃16; 16,20,23和＃34;。

Answer 1

您可以将JSON数据放在变量中：

data = {"sensors":
        {"-KqYN_VeXCh8CZQFRusI":
            {"bathroom_temp": 16,
             "date": "02/08/2017",
             "fridge_level": 8,
             "kitchen_temp": 18,
             "living_temp": 17,
             "power_bathroom": 0,
             "power_bathroom_value": 0,
             "power_kit_0": 0
        },
        "-KqYPPffaTpft7B72Ow9":
            {"bathroom_temp": 20,
             "date": "02/08/2017",
             "fridge_level": 19,
             "kitchen_temp": 14,
             "living_temp": 20,
             "power_bathroom": 0,
             "power_bathroom_value": 0
        },
        "-KqYPUld3AOve8hnpnOy":
            {"bathroom_temp": 23,
             "date": "02/08/2017",
             "fridge_level": 40,
             "kitchen_temp": 11,
             "living_temp": 10,
             "power_bathroom": 1,
             "power_bathroom_value": 81,
        }
    }
}

然后使用嵌套索引地址获取所需参数：

kitchen_temp = data["sensors"]["-KqYN_VeXCh8CZQFRusI"]["kitchen_temp"]
print(kitchen_temp)

解析python中的多级Json

1 个答案: