Library to encode/decode from json to java.util.Map?

Question

Does anyone knows a java library that could easily encode java Maps into json objects and the other way around?

UPDATE

For reasons couldn\'

Answer 1

You can view the site from Json.org for the list of good JSON libraries in Java.

JSon.org's own implementation JSONObject can do just that. From their JavaDoC

 /**
     * Construct a JSONObject from a Map.
     * 
     * @param map A map object that can be used to initialize the contents of
     *  the JSONObject.
     */
    public JSONObject(Map map);

you can do

JSONObject json = new JSONObject(map);

To convert JSON String back to object....

String jsonString = "{\"name\" : \"some name\", \"age\" : 10}";
JSONObject json = new JSONObject(jsonString);

and you can access values like:

int age = json.getInt("age");

Constructor JavaDoC

Construct a JSONObject from a source JSON text string. This is the most commonly used JSONObject constructor.

Parameters: source A string beginning with { (left brace) and ending with } (right brace).