jsonpath
1. java 类库
jayway/JsonPath
maven 使用方法
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<version>2.2.0</version>
</dependency>
jsonpath 语法：
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. |
2. js 类库
jsonpath-plus
npm
npm install jsonpath-plus
使用 nodeJs broswer
var JSONPath = require('jsonpath-plus');
var result = JSONPath({json: obj, path: path}); <script src="lib/jsonpath.js"></script>
<script>
var result = JSONPath({path: path, json: obj});
</script> 
