What is GSON vs JSON?

Google Gson is a simple Java-based library to serialize Java objects to JSON and vice versa. It is an open-source library developed by Google. Standardized − Gson is a standardized library that is managed by Google. Efficient − It is a reliable, fast, and efficient extension to the Java standard library.

Does Gson serialize static fields?

Gson can serialize static nested classes quite easily.

How does Gson from JSON work?

Data Binding. It converts JSON to and from POJO (Plain Old Java Object) using property accessor. Gson reads/writes JSON using data type adapters. It is analogous to JAXB parser for XML.

Does Gson serialize private fields?

In this example you’ll see how the Gson library handles the object fields. For object fields to be serialized into JSON string it doesn’t need to use any annotations, it can even read private fields.

What is Gson fromJson () in Java?

As many of you know already Gson is a great Java library that can be used to convert Java Objects into their JSON representation. It works also in reverse order deserializing the specified JSONObject or JSONArray into an object of the specified class.

How to get a value from Gson object by key?


  • number
  • object
  • array
  • boolean
  • null
  • How to convert ArrayList to string using Gson?


  • Serialization. Below we will serialize a java object into json using gson.
  • Deserialization. Converting from json to a java object or deserialization is a similar process. There is two subsnippets below.
  • What is the difference between Gson and JSON?

    – Widely huge which also means it is well tested. – Reliable performance. Jackson is the fastest library out of the ones you mentioned on large input. It is not the fastest on smaller input but it is very consistent. – Jackson is the default choice for Spring Boot which says a lot.

    How to use Gson?

    Gson (“The Adobe AEM Quickstart and Web Application.”) This is the main class for using Gson. Gson is typically used by first constructing a Gson instance and then invoking toJson (Object) or fromJson (String, Class) methods on it. Gson instances are Thread-safe so you can reuse them freely across multiple threads.