Introduction

Gson is a Java library that can be used to convert Java Objects into their JSON representation. Gson considers both of these as very important design goals.

Gson Features:

Provide simple toJson() and fromJson() methods to convert Java objects to JSON and vice-versa

Allow pre-existing unmodifiable objects to be converted to and from JSON

Extensive support of Java Generics

Support arbitrarily complex objects (with deep inheritance hierarchies and extensive use of generic types)

Syntax

• Excluder excluder()
• FieldNamingStrategy fieldNamingStrategy()
• <T> T fromJson(JsonElement json, Class<T> classOfT)
• <T> T fromJson(JsonElement json, Type typeOfT)
• <T> T fromJson(JsonReader reader, Type typeOfT)
• <T> T fromJson(Reader json, Class<T> classOfT)
• <T> T fromJson(Reader json, Type typeOfT)
• <T> T fromJson(String json, Class<T> classOfT)
• <T> T fromJson(String json, Type typeOfT)
• <T> TypeAdapter<T> getAdapter(Class<T> type)
• <T> TypeAdapter<T> getAdapter(TypeToken<T> type)
• <T> TypeAdapter<T> getDelegateAdapter(TypeAdapterFactory skipPast, TypeToken<T> type)