问题描述
我无法通过对象的接口对对象进行杰克逊序列化.
I have problem with jackson serialization of object by its interface.
我上课
class Point implements PointView {
private String id;
private String name;
public Point() {
}
public Point(String id, String name) {
this.id = id;
this.name = name;
}
@Override
public String getId() {
return id;
}
public String getName() {
return name;
}
}
实现
interface PointView {
String getId();
}
并上课
class Map implements MapView {
private String id;
private String name;
private Point point;
public Map() {
}
public Map(String id, String name, Point point) {
this.id = id;
this.name = name;
this.point = point;
}
@Override
public String getId() {
return id;
}
public String getName() {
return name;
}
@JsonSerialize(as = PointView.class)
public Point getPoint() {
return point;
}
}
实现
interface MapView {
String getId();
Point getPoint();
}
并上课
class Container {
private Map map;
public Container() {
}
public Container(Map map) {
this.map = map;
}
@JsonSerialize(as = MapView.class)
public Map getMap() {
return map;
}
}
我想用Jackson序列化Container并得到结果
I want serialize Container with Jackson and get result
{"map":{"id":"mapId","point":{"id":"pointId"}}}
但实际上我得到了结果
{"map":{"id":"mapId","point":{"id":"pointId","name":"pointName"}}}
尽管我在Map(@JsonSerialize(as = PointView.class))中指定了Point的序列化类型，但在嵌套对象"point"中具有属性"name"的
.接口PointView没有方法getName，但是结果中存在Point的字段"name".
that have property "name" in nested object "point" although I specified serializition type of Point in Map (@JsonSerialize(as = PointView.class)). Interface PointView dont have method getName, but in result exists field "name" of Point.
如果我从类Container中的getMap方法中删除注释(@JsonSerialize(as = MapView.class))，则会得到结果
If I remove annotation (@JsonSerialize(as = MapView.class)) from method getMap in class Container I get result
{"map":{"id":"mapId","name":"mapName","point":{"id":"pointId"}}}
现在点没有属性名称"，但是地图具有属性.
Now point dont have property "name", but map have.
我如何获得结果
{"map":{"id":"mapId","point":{"id":"pointId"}}}
?
推荐答案
要获得所需结果，还必须在接口中用@JsonSerialize
To get the desired result also the same method in interface must be annotated by @JsonSerialize
interface MapView {
String getId();
@JsonSerialize(as = PointView.class)
Point getPoint();
}
这篇关于嵌套对象的杰克逊序列化的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！