我们正在使用一个使用jayway库来评估JSONpath表达式的工具。 Javascript似乎无法使用。在这种情况下,如何在JSONPath中使用正则表达式。例如,在下面的示例中,我想过滤其标题中包含“Sword”一词的所有书名:
{
"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
}
},
"expensive": 10
}
答案 0 :(得分:5)
Jayway implementation使用Ruby正则表达式运算符:
$.store.book[?(@.title =~ /^.*Sword.*$/)]
忽略大小写:
$.store.book[?(@.title =~ /^.*sword.*$/i)]
答案 1 :(得分:0)
答案 2 :(得分:0)
为便于记录,Goessner的javascript JSONpath中有条件正则表达式的一种解决方法是按以下方式编写查询:
$.store.book[?(/^.*sword.*$/i.test(@.title))]
请在此处查看 https://github.com/jpaquit/jsonpath/tree/0.8.5-+-regexp用于JS lib中的“ =〜”语法。