JsonPath is to JSON what XPATH is to XML, a simple way to extract parts of a given document. JsonPath is available in many programming languages such as Javascript, Python and PHP.
JsonPath allows you to compile a json path string to use it many times or to compile and apply in one single on demand operation.
Given the Json document:
String json = "{ "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 } ], "bicycle": { "color": "red", "price": 19.95 } } }"; A JsonPath can be compiled and used as shown:
JsonPath path = JsonPath.compile("$.store.book[1]");
List<Object> books = path.read(json); Or:
List<Object> authors = JsonPath.read(json, "$.store.book[*].author") If the json path returns a single value (is definite):
String author = JsonPath.read(json, "$.store.book[1].author")