JSONPath详解，举例，demo， -对JSON的解析，XPath
2014-06-13 16:30:07
阅读5394次
最近在用js的JSONPath插件，下载地址：jsonpath.js
下面是一个json数据，而下面表格中是对应的插件的识别字符串，想必就会明白用JSONPath来解析json的路径问题了吧。不会的联系我。
{
"store": {
"book": [
{
"category": "reference",
"author": "Nigel Rees",
"title": "Sayings of the Century",
"price": 8.95
},
{
"category": "fiction",
"author": "Evelyn Waugh",
"title": "Sword of Honour",
"price": 12.99
},
{
"category": "fiction",
"author": "Herman Melville",
"title": "Moby Dick",
"isbn": "0-553-21311-3",
"price": 8.99
},
{
"category": "fiction",
"author": "J. R. R. Tolkien",
"title": "The Lord of the Rings",
"isbn": "0-395-19395-8",
"price": 22.99
}
],
"bicycle": {
"color": "red",
"price": 19.95
}
}
}| XPath | JSONPath | Result |
/store/book/author | $.store.book[*].author | the authors of all books in the store |
//author | $..author | all authors |
/store/* | $.store.* | all things in store, which are some books and a red bicycle. |
/store//price | $.store..price | the price of everything in the store. |
//book[3] | $..book[2] | the third book |
//book[last()] | $..book[(@.length-1)]$..book[-1:] | the last book in order. |
//book[position()<3] | $..book[0,1]$..book[:2] | the first two books |
//book[isbn] | $..book[?(@.isbn)] | filter all books with isbn number |
//book[price<10] | $..book[?(@.price<10)] | filter all books cheapier than 10 |
//* | $..* | all Elements in XML document. All members of JSON structure. |
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