How to rename json object name with java annotation? Object structure in java:
public class ParentClass {
private MyClass myClass;
}
public class MyClass {
private String name;
}
Json will have next view:
{
"myClass":{
"name":"value"
}
}
How can I change name of "myClass" using java/spring annotations, something like
@JsonObjectName("abc")
public class MyClass {
private String name;
}
and json will look like:
{
"abc":{
"name":"value"
}
}
Rename the variable:
private MyClass myClass;
To:
private MyClass abc;
This will yield the correct JSON-output without the use of annotations.
If you still want to use annotations and keep the name of the variable you can use @JsonProperty():
@JsonProperty("abc") // name of the property
private MyClass myClass;
@SerializedName("abc") is also possoble
It depends on the framework you are using. If you are using Jackson Library you can use:
public class ParentClass {
private MyClass myClass;
}
@JsonProperty("abc")
public class MyClass {
private String name;
}
If you are using Gson then
@SerializedName(value = "abc")
public class MyClass {
private String name;
}
Additionally in Gson if you want to use any alternate name for the field during deserialization we can use alternate as below:
@SerializedName(value = "abc", alternate ="xyz")
public class MyClass {
private String name;
}
alternate is to be used only at time of deserialization and GSON will only process/deserialize the last occurence of that field from JSON data.
