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JSONPath详解,举例,demo, -对JSON的解析,XPath
2014-06-13 16:30:07   阅读2958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
        }
    }
}


XPathJSONPathResult
/store/book/author$.store.book[*].authorthe authors of all books in the store
//author$..authorall authors
/store/*$.store.*all things in store, which are some books and a red bicycle.
/store//price$.store..pricethe 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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