我想剔除序列化的一些默认属性。我有以下类龙目岛生成器和杰克逊默认值
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Builder;
@JsonInclude(Include.NON_DEFAULT)
@Builder
public class RunTime
{
@JsonProperty
@Builder.Default
private String mystring = "any";
@JsonProperty
@Builder.Default
private Boolean myboolean = true;
@JsonProperty
@JsonInclude(Include.ALWAYS)
@Builder.Default
private Boolean always = true;
}
此外,我写了这个测试:
@Test
public void test() throws JsonProcessingException
{
RunTime rac = RunTime.builder().build();
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(rac);
assertThat(json).doesNotContain("mystring");
assertThat(json).doesNotContain("myboolean");
assertThat(json).contains("always");
}
我只希望包括在JSON字符串布尔always
财产。不幸的是,由于每个属性都包含在内,因此测试失败。不过,我注意到,当我移除龙目岛构建器并由我自己实例化对象时,所有这些工作都正常。我如何才能与龙目岛合作?