JSONBuilder

JSONBuilder is a simple non-intrusive Java library for generating JSON strings out of POJO object structures. It is non-intrusive in that it doesn't require any modification of existing POJO structures, including adding annotations.

• Lightweight
• Non-intrusive
• Simple use

Usage

Basic usage

Person person = new Person(12, "John Doe", "1978-10-21");
JSONBuilder json = new JSONBuilder();
json.include("id","name");
String s = json.serialize(person);

The String 's' now is equal to:

{"id":12,"name":"John Doe"}

Nested structures

Nested structures are supported

Person person = new Person(12, "John Doe", "1978-10-21", new Address("Downing street", 12));
JSONBuilder json = new JSONBuilder();
json.include("id","name","address.street");
String s = json.serialize(person);

Will generate:

{"id":12,"name":"John Doe","address":{"street":"Downing street"}}

Transposition

Transposition allows properties to be relocated in the output tree under a different path than in the source tree.

Person person = new Person(12, "John Doe", "1978-10-21", new Address("Downing street", 12));
JSONBuilder json = new JSONBuilder();
json.include("id","name");
json.includeTransposed("address.street","street")
String s = json.serialize(person);

Will generate:

{"id":12,"name":"John Doe","street":"Downing street"}

And more

• Datatype conversion using json.withTransformer(...)
• Serialization of collections (including primitives)
• Serialization of maps (as key-value pairs)
• Case conversion using Guava's CaseFormat as JSONBuilder constructor parameters
• See the tests provided for samples