JSON Serialization with Java Reflection API

Features

• @JsonSerializable - Class annotation to mark class as json serializable
• @JsonElement - Field annotation to mark field as json serializable. Can have an alias and can be marked as required (only for Objects)
• @JsonInit - Method annotation. The method will execute before the json is constructed

Can serialize

• primitives and wrapper classes
• arrays
• collections (lists, sets)
• objects
• maps

Example

@JsonSerializable
public class Student {

    @JsonElement
    private String firstName;

    @JsonElement
    private String lastName;

    @JsonElement(required = false)
    private String middleName;

    public Student(String firstName, String lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }
}

Student student = new Student("John", "Doe");
String jsonString = JsonConverter.convertToJson(student);
System.out.println(jsonString);

Output

{"firstName": "John", "lastName": "Doe"}

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See tests for full examples