Java利用Jackson轻松处理JSON序列化与反序列化

public class User {
    @JsonProperty("first_name")
    private String firstName;
    // ...
}

public class User {
    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd")
    private LocalDate birthDate;
    // ...
}

public class User {
    @JsonIgnore
    private String password;
    // ...
}

@JsonIgnoreProperties({"age", "address"})
public class User {
    // ...
}

@JsonInclude(JsonInclude.Include.NON_NULL)
public class User {
    private String middleName;
    // ...
}

@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type")
@JsonSubTypes({
    @JsonSubTypes.Type(value = Manager.class, name = "manager"),
    @JsonSubTypes.Type(value = Employee.class, name = "employee")
})
public abstract class Person {
    // ...
}

public class User {
    @JsonView(Views.Public.class)
    private String firstName;
    @JsonView(Views.Internal.class)
    private String ssn;
    // ...
}

@JsonNaming(PropertyNamingStrategy.SnakeCaseStrategy.class)
public class User {
    private String firstName;
    private String lastName;
    // ...
}

public class User {
    @JsonSerialize(using = CustomDateSerializer.class)
    @JsonDeserialize(using = CustomDateDeserializer.class)
    private LocalDate birthDate;
    // ...
}

public class User {
    private Map<String, Object> properties;

    @JsonAnyGetter
    public Map<String, Object> getProperties() {
        return properties;
    }

    @JsonAnySetter
    public void setProperty(String key, Object value) {
        properties.put(key, value);
    }
    // ...
}

@JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class, property = "id")
public class User {
    private int id;
    private List<User> friends;
    // ...
}