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>