解析嵌套的json有效负载python

我试图从这个嵌套的json负载中只获取一个值

我的功能：

import requests
import json
def payloaded():
from urllib.request import urlopen
with urlopen("www.example.com/payload.json") as r:
    data = json.loads(r.read().decode(r.headers.get_content_charset("utf-8")))
text = (data["bod"]["id"])
print(text)

bod: {
id: [
    {
        value: "A",
        summary: "B",
        format: "C"
    }
  ]
},

def payloaded():
from urllib.request import urlopen
with urlopen("www.example.com/payload.json") as r:
    data = json.loads(r.read().decode(r.headers.get_content_charset("utf-8")))
text = (data["bod"]["id"][0]["value"])
print(text)

有效负载：

import requests
import json
def payloaded():
from urllib.request import urlopen
with urlopen("www.example.com/payload.json") as r:
    data = json.loads(r.read().decode(r.headers.get_content_charset("utf-8")))
text = (data["bod"]["id"])
print(text)

bod: {
id: [
    {
        value: "A",
        summary: "B",
        format: "C"
    }
  ]
},

def payloaded():
from urllib.request import urlopen
with urlopen("www.example.com/payload.json") as r:
    data = json.loads(r.read().decode(r.headers.get_content_charset("utf-8")))
text = (data["bod"]["id"][0]["value"])
print(text)

目前它正在返回括号内的所有内容[…值…摘要…格式…]

找到的解决方案：

import requests
import json
def payloaded():
from urllib.request import urlopen
with urlopen("www.example.com/payload.json") as r:
    data = json.loads(r.read().decode(r.headers.get_content_charset("utf-8")))
text = (data["bod"]["id"])
print(text)

bod: {
id: [
    {
        value: "A",
        summary: "B",
        format: "C"
    }
  ]
},

def payloaded():
from urllib.request import urlopen
with urlopen("www.example.com/payload.json") as r:
    data = json.loads(r.read().decode(r.headers.get_content_charset("utf-8")))
text = (data["bod"]["id"][0]["value"])
print(text)

---

由于

id

值是一个列表（即使它只包含一个值），因此需要使用列表索引器进入其中。由于Python中的列表索引为零（从零开始），因此将使用

[0]

提取第一个元素：

data["bod"]["id"][0]["value"]

这项工作：

def payloaded():
from urllib.request import urlopen
with urlopen("www.example.com/payload.json") as r:
    data = json.loads(r.read().decode(r.headers.get_content_charset("utf-8")))
text = (data["bod"]["id"][0]["value"])
print(text)

---

谢谢我得出了与你建议的相同的解决方案。