Java – Jackson renames the original Boolean field by deleting ‘is’

This may be repeated But I couldn't find a solution

I have a class

public class MyResponse implements Serializable {

    private boolean isSuccess;

    public boolean isSuccess() {
        return isSuccess;
    }

    public void setSuccess(boolean isSuccess) {
        this.isSuccess = isSuccess;
    }
}

Getters and setters are generated by eclipse

In another class, I set the value to true and write it as a JSON string

System.out.println(new ObjectMapper().writeValueAsString(myResponse));

In JSON, the key is {success ": true}

The key I want is as success itself Does Jackson use the setter method when serializing? How to make the key as the field name itself?

Solution

This is a later answer, but it may be useful for anyone who comes to this page

A simple solution to change the name Jackson will use to serialize JSON is to use the @ jsonproperty annotation, so your example will be:

public class MyResponse implements Serializable {

    private boolean isSuccess;

    @JsonProperty(value="isSuccess")        
    public boolean isSuccess() {
        return isSuccess;
    }

    public void setSuccess(boolean isSuccess) {
        this.isSuccess = isSuccess;
    }
}

This will be serialized as JSON as {"issuccess": true}, but has the advantage of not having to modify the getter method name

Note that in this case, you can also write the comment @ jsonproperty ("issuccess") because it has only a single value element