Jackson 2.16 自定义基本数据类型的序列化器。您需要编写自己的序列化器。以下是布尔数据类型的示例代码:
// 创建一个带有自定义布尔值序列化器的模块
class BooleanSerializer extends JsonSerializer<Boolean> {
private final static Logger logger = LoggerFactory.getLogger(BooleanSerializer.class);
@Override
public void serialize(Boolean value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException {
logger.info("serializing boolean value as a Strng {}",value);
jgen.writeString(value.toString());
}
//注册定制的BooleanSerializer类以与ObjectMapper一起使用。
//这是我们配置对象映射器的地方
ObjectMapper mapper = new ObjectMapper();
SimpleModule simpleModule = new SimpleModule("BooleanAsString", new Version(1, 0, 0, null, null, null));
simpleModule.addSerializer(Boolean.class,new BooleanSerializer());
simpleModule.addSerializer(boolean.class,new BooleanSerializer());
mapper.registerModule(module);