Json Library Java [exclusive] (2027)

JSON (JavaScript Object Notation) has become the lingua franca of data exchange in modern web services, configuration files, and NoSQL databases. If you're a Java developer, you've likely faced the question: Which JSON library should I use?

String json = "\"name\":\"Bob\",\"age\":25"; User user = mapper.readValue(json, User.class); System.out.println(user.getName()); // Bob json library java

JSONArray hobbies = new JSONArray(); hobbies.put("reading"); hobbies.put("swimming"); obj.put("hobbies", hobbies); JSON (JavaScript Object Notation) has become the lingua

String jsonString = "\"name\":\"Eve\",\"age\":28"; JSONObject obj = new JSONObject(jsonString); String name = obj.getString("name"); int age = obj.getInt("age"); JSON-B (JSR 367) is part of Jakarta EE. It provides a standard API similar to JAXB for XML. If you're working in a full Jakarta EE environment or prefer a vendor-neutral approach, this is your choice. Implementation JSON-B is just a specification. You need an implementation like Eclipse Yasson or Apache Johnzon . Maven Dependencies <!-- API --> <dependency> <groupId>jakarta.json.bind</groupId> <artifactId>jakarta.json.bind-api</artifactId> <version>3.0.0</version> </dependency> <!-- Implementation (Yasson) --> <dependency> <groupId>org.eclipse</groupId> <artifactId>yasson</artifactId> <version>3.0.3</version> </dependency> <!-- Also needs JSON-P for parsing --> <dependency> <groupId>jakarta.json</groupId> <artifactId>jakarta.json-api</artifactId> <version>2.1.1</version> </dependency> Basic Examples import jakarta.json.bind.Jsonb; import jakarta.json.bind.JsonbBuilder; Jsonb jsonb = JsonbBuilder.create(); It provides a standard API similar to JAXB for XML

Whichever library you choose, mastering JSON processing is essential for modern Java development. Now go convert those objects to JSON and back! Did I miss your favorite library? Let me know about JSON-smart, Moshi (from Square), or Boon in the comments below!