Given these two annotated classes :
public class Clazz1 {
@JsonbProperty("val11")
String value11;
@JsonbProperty("val12")
String value12;
.....
}
public class Clazz2 {
@JsonbProperty("val21")
String value21;
@JsonbProperty("val22")
String value22;
.....
}
What I need is to generate a JSON that includes two objects, for example:
Clazz1 c1 = new Clazz1();
Clazz1 c2 = new Clazz2();
c1.setValue1("ABC");
... other settings
JsonObject json = Json.createObjectBuilder()
.add("c1", c1)
.add("c2", c2)
.build();
The add
method above doesn't accept objects, how to create a JSON that includes both objects c1
and c2
?
One approach is to use the JsonObjectBuilder
API and build the object manually:
JsonBuilderFactory factory = Json.createBuilderFactory();
JsonObject value = factory.createObjectBuilder()
.add("c1", factory.createObjectBuilder()
.add("value11", c1.getValue11()))
.add("c2", factory.createObjectBuilder()
.add("value21", c1.getValue21()))
Reference: https://docs.oracle.com/javaee/7/api/javax/json/JsonObjectBuilder.html
The other is to use the JsonbBuilder
API:
JsonbConfig jsonbConfig = new JsonbConfig()
.withPropertyNamingStrategy(
PropertyNamingStrategy.LOWER_CASE_WITH_DASHES);
Map<String, Object> objectMap = new HashMap<>();
objectMap.put("c1", c1);
objectMap.put("c2", c2);
String json = JsonbBuilder.create(jsonbConfig).toJson(objectMap);
Refernce: https://www.ibm.com/developerworks/library/j-javaee8-json-binding-3/index.html
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.