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>