Python解析json

时间 2019-11-12

标签 python 解析 json 栏目 Python 繁體版

原文原文链接

相对于python解析XML来讲，我仍是比较喜欢json的格式返回，如今通常的api返回都会有json与XML格式的选择，json的解析起来我的以为相对简单些html

先看一个简单的豆瓣的图书查询的api返回python

http://api.douban.com/v2/book/isbn/9787218087351
shell

{ "rating" :{ "max" : 10 , "numRaters" : 79 , "average" : "9.1" , "min" : 0 }, "subtitle" :" "," author ":[" 野夫 "]," pubdate ":" 2013 - 9 "," tags ":[{" count ":313," name ":" 野夫 "," title ":" 野夫 "},{" count ":151," name ":" 散文随笔 "," title ":" 散文随笔 "},{" count ":83," name ":" 身边的江湖 "," title ":" 身边的江湖 "},{" count ":82," name ":" 土家野夫 "," title ":" 土家野夫 "},{" count ":70," name ":" 散文 "," title ":" 散文 "},{" count ":44," name ":" 中国文学 "," title ":" 中国文学 "},{" count ":43," name ":" 随笔 "," title ":" 随笔 "},{" count ":38," name ":" 中国现当代文学 "," title ":" 中国现当代文学 "}]," origin_title ":" "," image ":" http:\ / \ / img5.douban.com\ / mpic\ / s27008269.jpg "," binding ":" "," translator ":[]," catalog ":"

自 序 让记忆抵抗\n001 掌瓢黎爷\n024 遗民老谭\n039 乱世游击：表哥的故事\n058 绑赴刑场的青春\n076 风住尘香花已尽 \n083 “酷客”李斯\n100 散材毛喻原\n113 颓世华筵忆黄门\n122 球球外传：\n一个时代和一只小狗的际遇\n141 童年的恐惧 与仇恨\n151 残忍教育\n167 湖山一梦系生平\n174 香格里拉散记\n208 民国屐痕

"," pages ":" 256 "," images ":{" small ":" http:\ / \ / img5.douban.com\ / spic\ / s27008269.jpg "," large ":" http:\ / \ / img5.douban.com\ / lpic\ / s27008269.jpg "," medium ":" http:\ / \ / img5.douban.com\ / mpic\ / s27008269.jpg "}," alt ":" http:\ / \ / book.douban.com\ / subject\ / 25639223 \ / "," id ":" 25639223 "," publisher ":" 广东人民出版社 "," isbn10 ":" 7218087353 "," isbn13 ":" 9787218087351 "," title ":" 身边的江湖 "," url ":" http:\ / \ / api.douban.com\ / v2\ / book\ / 25639223 "," alt_title ":" "," author_intro ":"

郑世平，笔名野夫，网名土家野夫。毕业于武汉大学，曾当过警察、囚徒、书商。曾出版历史小说《父亲的战争》、散文集《江上的母亲》（获台北

2010

国际书展非虚构类图书大奖，是该奖项第一个大陆得主）、散文集《乡关何处》（被新浪网、凤凰网、新华网分别评为

2012 年年度好书）。 "," summary ":" 1.

野夫书稿中被删减最少，最能体现做者观点、情感的做品。\n2.文字凝练，具备极强的感染力。以一枝孤笔书写那些就在你我身边的大历史背景下普通人的生活变迁。\n3. 柴静口中“一半像警察，一半像土匪”的野夫，以其特有的韵律表达世间的欢笑和悲苦。

"," price ":" 32 元"}

看起来别提多乱了，如今咱们将其格式进行简单的整理: json

{

rating: {

max : 10 ,

numRaters: 79 ,

average: "9.1" ,

min : 0

},

subtitle: "",

author: [

"野夫"

],

pubdate: "2013-9" ,

tags: [

{

count: 313 ,

name: "野夫" ,

title: "野夫"

},

{

count: 151 ,

name: "散文随笔" ,

title: "散文随笔"

},

{

count: 83 ,

name: "身边的江湖" ,

title: "身边的江湖"

},

{

count: 82 ,

name: "土家野夫" ,

title: "土家野夫"

},

{

count: 70 ,

name: "散文" ,

title: "散文"

},

{

count: 44 ,

name: "中国文学" ,

title: "中国文学"

},

{

count: 43 ,

name: "随笔" ,

title: "随笔"

},

{

count: 38 ,

name: "中国现当代文学" ,

title: "中国现当代文学"

}

],

origin_title: "",

image: "http://img5.douban.com/mpic/s27008269.jpg" ,

binding: "",

translator: [ ],

catalog:

"自序 让记忆抵抗 001 掌瓢黎爷 024 遗民老谭 039 乱世游击：表哥的故事 058 绑赴刑场的青春 076 风住尘香花已尽 083 “酷客”李斯 100 散材毛喻原 113 颓世华筵忆黄门 122 球球外传： 一个时代和一只小狗的际遇 141 童年的恐惧与仇恨 151 残忍教育 167 湖山一梦系生平 174 香格里拉散记 208 民国屐痕"

,

pages: "256" ,

images: {

small: "http://img5.douban.com/spic/s27008269.jpg" ,

large: "http://img5.douban.com/lpic/s27008269.jpg" ,

medium: "http://img5.douban.com/mpic/s27008269.jpg"

},

alt: "http://book.douban.com/subject/25639223/" ,

id : "25639223" ,

publisher: "广东人民出版社" ,

isbn10: "7218087353" ,

isbn13: "9787218087351" ,

title: "身边的江湖" ,

url: "http://api.douban.com/v2/book/25639223" ,

alt_title: "",

author_intro:

"郑世平，笔名野夫，网名土家野夫。毕业于武汉大学，曾当过警察、囚徒、书商。曾出版历史小说《父亲的战争》、散文集《江上的母亲》（获台北2010国际书展非虚构类图书大奖，是该奖项第一个大陆得主）、散文集《乡关何处》（被新浪网、凤凰网、新华网分别评为2012年年度好书）。"

,

summary:

"1.野夫书稿中被删减最少，最能体现做者观点、情感的做品。 2.文字凝练，具备极强的感染力。以一枝孤笔书写那些就在你我身边的大历史背景下普通人的生活变迁。 3. 柴静口中“一半像警察，一半像土匪”的野夫，以其特有的韵律表达世间的欢笑和悲苦。"

,

price: "32元"

}

下面咱们经过python来取出想要的信息，好比咱们想要rating,images里的large和summary api

import urllib2
import json
 
html = urllib2.urlopen(r'http://api.douban.com/v2/book/isbn/9787218087351')
 
hjson = json.loads(html.read())
 
print hjson['rating']
print hjson['images']['large']
print hjson['summary']

是否是很简单，其实只要把返回的json格式嵌套搞清楚，json仍是比较简单的。url