如何将JSON字段名称映射到不同的对象字段名称？ [英] How to map JSON field names to different object field names?

问题描述

以下jax-b注释的Jackson json注释中的等价方式是什么？

What is the equiv way in Jackson json annotation for the following jax-b annotations?

我需要生成json而不是xml并且需要知道传统的jackson在jax-b中等效表示的注释。

I need to produce json rather than xml and need to know the conventional jackson annotations that is equivalently denoted in jax-b.

1. 重命名字段。


2. 使用getters代替字段。

如果json / xml元素名称是java保留字
，则这些功能尤其重要 new ， public ， static 等。

These features are especially crucial if the json/xml element name is a java reserved word like "new", "public", "static", etc.

因此我们必须将POJO字段分别命名为_new_，_ public _，_ static_等，

So that we have to name the POJO fields as "_new_", "_public_", "_static_", etc, respectively,

但是使用jax-b注释将它们重命名为生成的XML（和json）元素中的new，public，static等等
。

but use jax-b annotation to rename them back to "new", "public", "static", etc in the generated XML (and json) elements.

重命名字段

@XmlAccessorType(XmlAccessType.FIELD)
public class Person{
    @XmlElement(required = true)
    protected String name;
    @XmlElement(required = true)
    protected String address;
    @XmlElement(name = "contractor")
    protected boolean _restricted_ ;
    @XmlElement(name = "new")
    protected boolean _new_ ;
}

重定向到使用属性getter （我认为这是是如何在jax-b中完成的

Redirect to using property getter (I think this is how it is done in jax-b)

@XmlAccessorType(XmlAccessType.PROPERTY)
public class Person{
    protected String name;
    protected String address;
    protected boolean _restricted_ ;
    protected boolean _new_ ;

    @XmlElement(required = true)
    protected String getName() {return name;}
    @XmlElement(required = true)
    protected String getAddress() {return address;}
    @XmlElement(name = "contractor")
    protected boolean getRestricted() {return _restricted_;}
    @XmlElement(name = "new")
    protected boolean getNew(){return _new_;}
}

推荐答案

可能它有点迟了但是无论如何..

Probably it's a bit late but anyway..

你可以重命名一个属性只需添加

you can rename a property just adding

@JsonProperty("contractor")

默认情况下，杰克逊使用吸气剂和setter来序列化和反序列化。

And by default Jackson use the getter and setter to serialize and deserialize.

有关更多详细信息： http://wiki.fasterxml.com/JacksonFAQ

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