How to search/find In JSON with java

Question

I have a below JSON string from the below i want to find/search criteria in JSON String.

1). To find the Number of keys present. 2). To get the values of given key(

Answer 1

You can also use the JsonPath project provided by REST Assured. This JsonPath project uses Groovy GPath expressions. In Maven you can depend on it like this:

    com.jayway.restassured
    json-path
    2.4.0

Examples:

To get a list of all book categories:

List categories = JsonPath.from(json).get("store.book.category");

Get the first book category:

String category = JsonPath.from(json).get("store.book[0].category");

Get the last book category:

String category = JsonPath.from(json).get("store.book[-1].category");

Get all books with price between 5 and 15:

List

GPath is very powerful and you can make use of higher order functions and all Groovy data structures in your path expressions.