嗨,我有很少的UI对象互相嵌入。示例#1:
class CarUI {
public UserUI user;
public UserUI agent;
....
public UserUI getUser() {
return user;
}
public UserUI getAgent() {
return agent;
}
}
class UserUI {
@JsonView({Views.Public.class,Views.Private.class})
public String name;
@JsonView({Views.Private.class})
public String phone;
...
}
正如您所看到的,如果我将UserUI序列化为Public,我将只显示名称,但对于私有我将公开所有字段。
这是我的问题:当我序列化对象CarUI时,我想只显示" user"的名称。以及"代理商"的名称和电话。这实际上意味着在getUser()的getter中我想将JsonView更改为Views.Public.class,而对于getAgent()我想将其更改为Views.Private.class
是否有办法在getter中覆盖JsonView,以便使用这个新的JsonView对返回的对象的所有层次结构进行序列化?
被修改 如下所示,您可以使用JsonView继承来解决我的示例#1。怎样更通用。以下是示例#2:
class CarUI {
public UserUI user;
public UserUI agent;
....
public UserUI getUser() {
return user;
}
public UserUI getAgent() {
return agent;
}
}
class UserUI {
@JsonView({Views.Public.class,Views.Private.class})
public String name;
@JsonView({Views.Private.class})
public String phone;
@JsonView({Views.Public.class})
public String avatarUrl;
...
}
在此示例中,Id喜欢为代理显示名称+电话,为用户显示名称+ avatarUrl。
答案 0 :(得分:2)
@JsonView接受继承。 Views.Private字段扩展了Views.Public字段。这意味着Views.Private序列化也将查找Views.Public注释。
public Views {
public Public {}
public Private extends Public {}
}
class CarUI {
public UserUI user;
public UserUI agent;
....
@JsonView(Views.Public.class)
public UserUI getUser() {
return user;
}
@JsonView(Views.Private.class)
public UserUI getAgent() {
return agent;
}
}
class UserUI {
@JsonView(Views.Public.class)
public String name;
@JsonView(Views.Private.class)
public String phone;
...
}
例如#2
您可以引入多个类,如:
public Views {
public Public {}
public Private1 extends Public {}
public Private2 extends Public {}
}
class CarUI {
public UserUI user;
public UserUI agent;
....
public UserUI getUser() {
return user;
}
public UserUI getAgent() {
return agent;
}
}
class UserUI {
@JsonView(Views.Public.class)
public String name;
@JsonView({Views.Private1.class})
public String phone;
@JsonView({Views.Private2.class})
public String avatarUrl;
...
}
或者您可以使用无视图属性并且不使用继承:
public Views {
public Public {}
public Private {}
}
class CarUI {
public UserUI user;
public UserUI agent;
....
public UserUI getUser() {
return user;
}
public UserUI getAgent() {
return agent;
}
}
class UserUI {
// This one is view-less shows every time unless you specificy
public String name;
@JsonView({Views.Private.class})
public String phone;
@JsonView({Views.Public.class})
public String avatarUrl;
...
}
...
// If you want to hide view-less properties, default is true
objectMapper.configure(SerializationConfig.Feature.DEFAULT_VIEW_INCLUSION, false);
...
答案 1 :(得分:1)
如果有人需要,只需找到更通用的案例。基本上你可以使用不同的JsonView在getter中转换你的属性:
@JsonView({ Views.Detail.class})
public JsonNode getAgent() throws IOException {
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writerWithView(Views. Private.class).writeValueAsString(agent);
return mapper.readTree(json);
}