Query a JSONObject in java

Question

I was wondering if somewhere out there exists a java library able to query a JSONObject. In more depth I\'m looking for something like:

Answer 1

First of all, I would recommend consider JSON object binding.

But in case if you get arbitrary JSON objects and you would like process them in the way you described, I would suggest combine Jackson JSON processor along with Apache's Commons Beanutils.

The idea is the following: Jackson by default process all JSON's as java.util.Map instances, meanwhile Commons Beanutils simplifies property access for objects, including arrays and Map supports.

So you may use it something like this:

//actually it is a Map instance with maps-fields within
Object jsonObj = objectMapper.readValue(json, Object.class);

Object hello = PropertyUtils.getProperty(jsonObj, "data.data2.value")

System.out.println(hello); //prints hello