Java boon JSON解析器从输出中删除空值

import org.boon.json.JsonFactory;
import org.boon.json.JsonParser;
import org.boon.json.JsonSerializer;

public class JsonParserExample {
    public static void main(String[] args) {
        String jsonData = "{\"name\":\"John\", \"age\":null, \"address\":\"123 Street\"}";

        // 创建JSON解析器
        JsonParser parser = JsonFactory.create();

        // 解析JSON数据
        Object jsonObject = parser.parse(jsonData);

        // 删除空值
        removeNullValues(jsonObject);

        // 创建JSON生成器
        JsonSerializer serializer = JsonFactory.create();

        // 生成JSON数据
        String outputJson = serializer.serialize(jsonObject);

        System.out.println(outputJson);
    }

    private static void removeNullValues(Object jsonObject) {
        if (jsonObject instanceof Map) {
            Map<String, Object> map = (Map<String, Object>) jsonObject;
            Iterator<Map.Entry<String, Object>> iterator = map.entrySet().iterator();
            while (iterator.hasNext()) {
                Map.Entry<String, Object> entry = iterator.next();
                if (entry.getValue() == null) {
                    iterator.remove();
                } else {
                    removeNullValues(entry.getValue());
                }
            }
        } else if (jsonObject instanceof List) {
            List<Object> list = (List<Object>) jsonObject;
            Iterator<Object> iterator = list.iterator();
            while (iterator.hasNext()) {
                Object item = iterator.next();
                if (item == null) {
                    iterator.remove();
                } else {
                    removeNullValues(item);
                }
            }
        }
    }
}