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[BUG]WriteNulls序列化时丢失部分null值字段 #2952

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wdollar opened this issue Sep 10, 2024 · 1 comment
Closed

[BUG]WriteNulls序列化时丢失部分null值字段 #2952

wdollar opened this issue Sep 10, 2024 · 1 comment
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@wdollar
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wdollar commented Sep 10, 2024

问题描述

在部分字段上使用@JSONField(serializeFeatures = JSONWriter.Feature.WriteNulls)注解,序列化时无法正常序列化null值。

环境信息

  • OS信息: Windows 11 中文版 23H2 22631.4112
  • JDK信息:Temurin-17.0.12+7
  • 版本信息:Fastjson2 2.0.52

重现步骤

代码如下

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONWriter;
import com.alibaba.fastjson2.annotation.JSONField;

import lombok.Data;

@Data
public class C {
    @JSONField(serializeFeatures = JSONWriter.Feature.WriteNulls)
    private Long l;

    @JSONField(serializeFeatures = JSONWriter.Feature.WriteNulls)
    private Double d;

    @JSONField(serializeFeatures = JSONWriter.Feature.WriteNulls)
    private Integer i;

    @JSONField(serializeFeatures = JSONWriter.Feature.WriteNulls)
    private String s;

    public static void main(String[] args) {
        System.out.println(JSON.toJSONString(new C()));
    }
}

输出结果

{"i":null,"s":null}

期待的正确结果

{"l":null,"d":null,"i":null,"s":null}

相关日志输出

附加信息

@wdollar wdollar added the bug Something isn't working label Sep 10, 2024
@yanxutao89 yanxutao89 self-assigned this Sep 11, 2024
yanxutao89 added a commit that referenced this issue Sep 11, 2024
…iledWriter.features is not among (0, JSONWriter.Feature.FieldBased.mask, FieldInfo.FIELD_MASK), for issue #2952
@wenshao wenshao added this to the 2.0.53 milestone Sep 15, 2024
@wenshao wenshao added the fixed label Sep 15, 2024
@yanxutao89 yanxutao89 removed their assignment Sep 15, 2024
@wenshao
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wenshao commented Sep 16, 2024

@wenshao wenshao closed this as completed Sep 16, 2024
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