Path Examples
{
"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
}
Operators
| Operator | Description |
|---|
$ |
The root element to query. This starts all path expressions. |
@ |
The current node being processed by a filter predicate. |
* |
Wildcard. Available anywhere a name or numeric are required. |
.. |
Deep scan. Available anywhere a name is required. |
.<name> |
Dot-notated child |
['<name>' (, '<name>')] |
Bracket-notated child or children |
[<number> (, <number>)] |
Array index or indexes |
[start:end] |
Array slice operator |
[?(<expression>)] |
Filter expression. Expression must evaluate to a boolean value. |
Functions
| Function | Description | Output |
|---|
| min() |
Provides the min value of an array of numbers |
Double |
| max() |
Provides the max value of an array of numbers |
Double |
| avg() |
Provides the average value of an array of numbers |
Double |
| stddev() |
Provides the standard deviation value of an array of numbers |
Double |
| length() |
Provides the length of an array |
Integer |
| sum() |
Provides the sum value of an array of numbers |
Double |
Filter Operators
| Operator | Description |
|---|
| == |
left is equal to right (note that 1 is not equal to '1') |
| != |
left is not equal to right |
| < |
left is less than right |
| <= |
left is less or equal to right |
| > |
left is greater than right |
| >= |
left is greater than or equal to right |
| =~ |
left matches regular expression [?(@.name =~ /foo.*?/i)] |
| in |
left exists in right [?(@.size in ['S', 'M'])] |
| nin |
left does not exists in right |
| subsetof |
left is a subset of right [?(@.sizes subsetof ['S', 'M', 'L'])] |
| anyof |
left has an intersection with right [?(@.sizes anyof ['M', 'L'])] |
| noneof |
left has no intersection with right [?(@.sizes noneof ['M', 'L'])] |
| size |
size of left (array or string) should match right |
| empty |
left (array or string) should be empty |
Path Examples
| JsonPath | Result |
|---|
| $.store.book[*].author |
The authors of all books:
[
"Nigel Rees",
"Evelyn Waugh",
"Herman Melville",
"J. R. R. Tolkien"
]
|
| $..author |
All authors:
[
"Nigel Rees",
"Evelyn Waugh",
"Herman Melville",
"J. R. R. Tolkien"
]
|
| $.store.* |
All things, both books and bicycles:
[
[
{
"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
}
],
{
"color" : "red",
"price" : 19.95
}
]
|
| $.store..price |
The price of everything:
[
8.95,
12.99,
8.99,
22.99,
19.95
]
|
| $..book[2] |
The third book:
[
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[-2] |
The second to last book:
[
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[0,1] |
The first two books |
| $..book[:2] |
All books from index 0 (inclusive) until index 2 (exclusive) |
| $..book[1:2] |
All books from index 1 (inclusive) until index 2 (exclusive) |
| $..book[-2:] |
Last two books |
| $..book[2:] |
Book number two from tail |
| $..book[?(@.isbn)] |
All books with an ISBN number:
[
{
"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
}
]
|
| $.store.book[?(@.price < 10)] |
All books in store cheaper than 10:
[
{
"category" : "reference",
"author" : "Nigel Rees",
"title" : "Sayings of the Century",
"price" : 8.95
},
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[?(@.price <= $['expensive'])] |
All books in store that are not "expensive":
[
{
"category" : "reference",
"author" : "Nigel Rees",
"title" : "Sayings of the Century",
"price" : 8.95
},
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[?(@.author =~ /.*REES/i)] |
All books matching regex (ignore case):
[
{
"category" : "reference",
"author" : "Nigel Rees",
"title" : "Sayings of the Century",
"price" : 8.95
}
]
|
| $..* |
Give me every thing |
| $..book.length() |
The number of books
|
path example:注：在jmeter 中使用时这里的 length()有时候并不太好用，可以用另外一种方法代替，如下图，要提取 rows 的长度，可用JSON/YAML Path Extractor 提取整个列表$.data.rows赋给变量 list_rows，查看Debug Sampler ,会返回一个 list_rows_matchNr 长度值，可以通过这个长度值进行比较或者取值