从JSON获取值列表
[英]Getting a list of values from json
问题描述
I am using an API from a website and I am struggling to collect the data i need from the JSON I receive. 
我正在使用网站上的API，并且正在努力从收到的JSON收集所需的数据。 Here is an example of the JSON I have received: 这是我收到的JSON的示例：
{'success': True, 'tracks': {'data': {'12958571': {'position': 3, 'id': '12958571llwU', 'track': 'Are You With Me', 'bitrate': '320', 'text_id': None, 'count_listen': '2110', 'artist': 'Lost Frequencies feat Easton Corbin', 'server_id4': '0', 'lenght': '211'}, '12924079': {'position': 8, 'id': '12924079tZmc', 'track': 'Love Me Like You Do', 'bitrate': '320', 'text_id': None, 'count_listen': '1654', 'artist': 'Ellie Goulding', 'server_id4': '0', 'lenght': '233'}, '12241830': {'position': 12, 'id': '12241830KIyP', 'track': 'Blame', 'bitrate': 'VBR', 'text_id': None, 'count_listen': '1093', 'artist': 'Calvin Harris feat. John Newman', 'server_id4': 's20', 'lenght': '211'}, '1036820': {'position': 16, 'id': '1036820770C', 'track': 'LILY WAS HERE', 'bitrate': '256', 'text_id': None, 'count_listen': '307', 'artist': 'CANDY DULFER DAVE STEWART', 'server_id4': 's20', 'lenght': '253'}, '12441354': {'position': 14, 'id': '12441354CAj2', 'track': 'Love Who Loves You Back', 'bitrate': 'VBR', 'text_id': None, 'count_listen': '975', 'artist': 'Tokio Hotel', 'server_id4': '0', 'lenght': '229'}, '12697344': {'position': 13, 'id': '12697344Polh', 'track': 'Outside', 'bitrate': '160', 'text_id': None, 'count_listen': '1050', 'artist': 'Calvin Harris feat. Ellie Goulding', 'server_id4': '0', 'lenght': '226'}, '5738480': {'position': 5, 'id': '5738480NApX', 'track': 'Love Me Again', 'bitrate': '320', 'text_id': '18660', 'count_listen': '1830', 'artist': 'John Newman', 'server_id4': '0', 'lenght': '215'}, '12538432': {'position': 4, 'id': '12538432tnyz', 'track': 'Dangerous', 'bitrate': 'VBR', 'text_id': None, 'count_listen': '1916', 'artist': 'David Guetta (feat. Sam Martin)', 'server_id4': '0', 'lenght': '169'}, '12881624': {'position': 9, 'id': '12881624Igo4', 'track': 'The Good, The Bad And The Crazy', 'bitrate': '320', 'text_id': None, 'count_listen': '1374', 'artist': 'Imany, Filatov, Karas', 'server_id4': '0', 'lenght': '260'}, '6449584': {'position': 19, 'id': '6449584PwRx', 'track': 'Wrecking Ball', 'bitrate': '192', 'text_id': '18512', 'count_listen': '259', 'artist': 'Miley Cyrus', 'server_id4': '0', 'lenght': '223'}, '13361656': {'position': 11, 'id': '13361656Gr1A', 'track': 'Reality', 'bitrate': 'VBR', 'text_id': None, 'count_listen': '1131', 'artist': 'Lost Frequencies feat. Janieck Devy', 'server_id4': '0', 'lenght': '158'}, '6810440': {'position': 17, 'id': '6810440Uc4B', 'track': 'Royals', 'bitrate': '320', 'text_id': None, 'count_listen': '272', 'artist': 'Lorde', 'server_id4': '0', 'lenght': '192'}, '13241397': {'position': 7, 'id': '13241397v1h3', 'track': 'Ghost Town', 'bitrate': 'VBR', 'text_id': None, 'count_listen': '1668', 'artist': 'Adam Lambert', 'server_id4': '0', 'lenght': '208'}, '13482545': {'position': 1, 'id': '13482545fiqs', 'track': 'Supergirl', 'bitrate': '320', 'text_id': None, 'count_listen': '2431', 'artist': 'Anna Naklab, Younotus feat. Alle Farben', 'server_id4': '0', 'lenght': '212'}, '13154936': {'position': 2, 'id': '131549364jlY', 'track': 'Lean On', 'bitrate': 'VBR', 'text_id': None, 'count_listen': '2297', 'artist': 'Major Lazer x DJ Snake feat. MØ', 'server_id4': '0', 'lenght': '176'}, '13416218': {'position': 15, 'id': '134162185MCV', 'track': 'How Deep Is Your Love', 'bitrate': '320', 'text_id': None, 'count_listen': '922', 'artist': 'Calvin Harris & Disciples', 'server_id4': '0', 'lenght': '212'}, '8021072': {'position': 20, 'id': '8021072mjSx', 'track': 'Under Control', 'bitrate': '320', 'text_id': None, 'count_listen': '256', 'artist': 'Alesso feat. Calvin Harris & Hurts', 'server_id4': '0', 'lenght': '215'}, '12496862': {'position': 10, 'id': '124968620fP6', 'track': 'Imagination', 'bitrate': '320', 'text_id': None, 'count_listen': '1295', 'artist': 'Gorgon City feat. Katy Menditta', 'server_id4': '0', 'lenght': '387'}, '12701434': {'position': 6, 'id': '12701434zPSR', 'track': 'Tribute', 'bitrate': 'VBR', 'text_id': None, 'count_listen': '1801', 'artist': 'Homeless Man', 'server_id4': '0', 'lenght': '94'}, '13478793': {'position': 18, 'id': '13478793fu3c', 'track': 'Hello', 'bitrate': '320', 'text_id': None, 'count_listen': '268', 'artist': 'Adele', 'server_id4': '0', 'lenght': '295'}}, 'count': 1000}}
Sorry that the JSON is all in one line. 抱歉，JSON都是一行。 Anyway for some reason the nesting here is completely disastrous. 无论如何，由于某种原因，这里的嵌套是完全灾难性的。 What I want is to have an array for each track that is represented. 我想要的是为每个代表的音轨都有一个数组。 The tracks are nested in the data key but each track is not in an array (as the api claims) but is in fact part of a dictionary with the key being its id (ie '12958571'). 磁道嵌套在数据键中，但每个磁道都不在数组中（如api所声称的），但实际上是字典的一部分，该键是其ID（即“ 12958571”）。 However I struggle to see how I will collect the data I need (artist, track etc.) if the value of the keys will vary based on what response I get from the api. 但是，如果键的值根据我从api得到的响应而变化，那么我很难理解如何收集所需的数据（艺术家，跟踪等）。 Is there a way that I can get all the data and convert it into an array even though I don't know what the value of the key will be? 即使我不知道键的值是多少，有没有办法获取所有数据并将其转换为数组？
edit: This is the pure valid JSON from the server: 编辑：这是来自服务器的纯有效JSON：
{
"success": true,
"tracks": {
"count": 1000,
"data": {
"13482545": {
"id": "13482545fiqs",
"artist": "Anna Naklab, Younotus feat. Alle Farben",
"track": "Supergirl",
"lenght": "212",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "2466",
"position": 1
},
"13154936": {
"id": "131549364jlY",
"artist": "Major Lazer x DJ Snake feat. M\u00d8",
"track": "Lean On",
"lenght": "176",
"text_id": null,
"bitrate": "VBR",
"server_id4": "0",
"count_listen": "2335",
"position": 2
},
"12958571": {
"id": "12958571llwU",
"artist": "Lost Frequencies feat Easton Corbin",
"track": "Are You With Me",
"lenght": "211",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "2140",
"position": 3
},
"12538432": {
"id": "12538432tnyz",
"artist": "David Guetta (feat. Sam Martin)",
"track": "Dangerous",
"lenght": "169",
"text_id": null,
"bitrate": "VBR",
"server_id4": "0",
"count_listen": "1950",
"position": 4
},
"5738480": {
"id": "5738480NApX",
"artist": "John Newman",
"track": "Love Me Again",
"lenght": "215",
"text_id": "18660",
"bitrate": "320",
"server_id4": "0",
"count_listen": "1860",
"position": 5
},
"12701434": {
"id": "12701434zPSR",
"artist": "Homeless Man",
"track": "Tribute",
"lenght": "94",
"text_id": null,
"bitrate": "VBR",
"server_id4": "0",
"count_listen": "1834",
"position": 6
},
"13241397": {
"id": "13241397v1h3",
"artist": "Adam Lambert",
"track": "Ghost Town",
"lenght": "208",
"text_id": null,
"bitrate": "VBR",
"server_id4": "0",
"count_listen": "1696",
"position": 7
},
"12924079": {
"id": "12924079tZmc",
"artist": "Ellie Goulding",
"track": "Love Me Like You Do",
"lenght": "233",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "1680",
"position": 8
},
"12881624": {
"id": "12881624Igo4",
"artist": "Imany, Filatov, Karas",
"track": "The Good, The Bad And The Crazy",
"lenght": "260",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "1402",
"position": 9
},
"12496862": {
"id": "124968620fP6",
"artist": "Gorgon City feat. Katy Menditta",
"track": "Imagination",
"lenght": "387",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "1317",
"position": 10
},
"13361656": {
"id": "13361656Gr1A",
"artist": "Lost Frequencies feat. Janieck Devy",
"track": "Reality",
"lenght": "158",
"text_id": null,
"bitrate": "VBR",
"server_id4": "0",
"count_listen": "1146",
"position": 11
},
"12241830": {
"id": "12241830KIyP",
"artist": "Calvin Harris feat. John Newman",
"track": "Blame",
"lenght": "211",
"text_id": null,
"bitrate": "VBR",
"server_id4": "s20",
"count_listen": "1112",
"position": 12
},
"12697344": {
"id": "12697344Polh",
"artist": "Calvin Harris feat. Ellie Goulding",
"track": "Outside",
"lenght": "226",
"text_id": null,
"bitrate": "160",
"server_id4": "0",
"count_listen": "1071",
"position": 13
},
"12441354": {
"id": "12441354CAj2",
"artist": "Tokio Hotel",
"track": "Love Who Loves You Back",
"lenght": "229",
"text_id": null,
"bitrate": "VBR",
"server_id4": "0",
"count_listen": "990",
"position": 14
},
"13416218": {
"id": "134162185MCV",
"artist": "Calvin Harris & Disciples",
"track": "How Deep Is Your Love",
"lenght": "212",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "930",
"position": 15
},
"1036820": {
"id": "1036820770C",
"artist": "CANDY DULFER DAVE STEWART",
"track": "LILY WAS HERE",
"lenght": "253",
"text_id": null,
"bitrate": "256",
"server_id4": "s20",
"count_listen": "318",
"position": 16
},
"6810440": {
"id": "6810440Uc4B",
"artist": "Lorde",
"track": "Royals",
"lenght": "192",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "275",
"position": 17
},
"13478793": {
"id": "13478793fu3c",
"artist": "Adele",
"track": "Hello",
"lenght": "295",
"text_id": null,
"bitrate": "320",
"server_id4": "0",
"count_listen": "272",
"position": 18
},
"6449584": {
"id": "6449584PwRx",
"artist": "Miley Cyrus",
"track": "Wrecking Ball",
"lenght": "223",
"text_id": "18512",
"bitrate": "192",
"server_id4": "0",
"count_listen": "267",
"position": 19
},
"4473614": {
"id": "44736143Ee9",
"artist": "Eminem feat. Rihanna",
"track": "Love The Way You Lie",
"lenght": "263",
"text_id": "18072",
"bitrate": "192",
"server_id4": "0",
"count_listen": "260",
"position": 20
}
}
}}
2 个解决方案
解决方案1
2 已采纳 2015-11-29 18:08:42
Assume that the JSON object you get back is called jobject , then here is a suggestion on how to access the information: 假设您返回的JSON对象称为jobject ，那么这里是有关如何访问信息的建议：
print('Success?', jobject['success'])
print('Number of tracks claimed:', jobject['tracks']['count'])
print('Number of actual tracks:', len(jobject['tracks']['data']))
for track_id, track_info in jobject['tracks']['data'].items():
print('Track:', track_info['track'])
print('Artist:', track_info['artist'])
print('---')
Output: 输出：
Success? True
Number of tracks claimed: 1000
Number of actual tracks: 20
Track: Royals
Artist: Lorde
---
Track: Dangerous
Artist: David Guetta (feat. Sam Martin)
---
Track: Love Who Loves You Back
Artist: Tokio Hotel
---
...
解决方案2
0 2015-11-29 16:52:03
First sanity check your JSON to ensure it's valid, ie use http://jsonlint.com 首先理智地检查您的JSON以确保其有效，即使用http://jsonlint.com
# coding=utf-8
#!/usr/local/bin/python
import json
jsonString = "{'success': True, ..." #your JSON string here
jdict = json.decoder.JSONDecoder().decode(jsonString)
Then jdict will contain a dictionary representing ALL the contents of the JSON, which you can access with eg 然后，jdict将包含一个表示JSON所有内容的字典，您可以使用例如
tracks = jdict['tracks']
You may want to manually structure and re-arrange these sub/dictionaries accordingly. 您可能需要手动构造和重新排列这些子/词典。 You can easily merge two dictionaries in python eg 您可以轻松地在python中合并两个字典，例如
z = x.copy()
z.update(y)
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