[BUG] JSONField的unwrapped问题

[Cooper-Zhong]

问题描述

类似#1158， fastjson 在@JSONField(unwrapped = true)在JSON.parseObject时 与fastjson2结果不同

环境信息

• OS信息： [MacOS 12.7.4 M1 Pro 16 GB]
• JDK信息： [Openjdk 17.0.6]
• 版本信息：[Fastjson/Fastjson2 2.0.49]

重现步骤

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.annotation.JSONField;
import lombok.Data;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class Issue1158TestMutated_221 {

    @Test
    public void testMutated() {
        StandardGetQry standardGetQry = new StandardGetQry();
        StandardBaseModel standardBaseModel = new StandardBaseModel();
        standardBaseModel.setCode("2");
        standardBaseModel.setCategory("NEW_CALL_STATUS");
        standardGetQry.setStandardBaseModel(standardBaseModel);
        String jsonStr = JSON.toJSONString(standardGetQry);
        assertEquals("{\"standardCategory\":\"NEW_CALL_STATUS\",\"standardCode\":\"2\"}", jsonStr);

        StandardGetQry standardGetQry2 = JSON.parseObject(jsonStr, StandardGetQry.class);
        assertEquals("{\"standardCategory\":\"NEW_CALL_STATUS\",\"standardCode\":\"2\"}", JSON.toJSONString(standardGetQry2));
    }

    @Data
    public static class StandardGetQry {
        /**
         * 基础数据
         */
        @JSONField(unwrapped = true)
        private StandardBaseModel standardBaseModel;
    }

    @Data
    public static class StandardBaseModel {
        /**
         * 逻辑编码-标准KEY
         */
        @JSONField(name = "standardCode")
        private String code;

        /**
         * 标准类别
         */
        @JSONField(name = "standardCategory")
        private String category;
    }

    @Test
    public void testMutated1() {
        StandardGetQry1 standardGetQry = new StandardGetQry1();
        StandardBaseModel1 standardBaseModel = new StandardBaseModel1();
        standardBaseModel.setCode("2");
        standardBaseModel.setCategory("NEW_CALL_STATUS");
        standardGetQry.setStandardBaseModel(standardBaseModel);
        String jsonStr = com.alibaba.fastjson.JSON.toJSONString(standardGetQry);
        assertEquals("{\"standardCategory\":\"NEW_CALL_STATUS\",\"standardCode\":\"2\"}", jsonStr);

        StandardGetQry1 standardGetQry2 = com.alibaba.fastjson.JSON.parseObject(jsonStr, StandardGetQry1.class);
        assertEquals("{\"standardCategory\":\"NEW_CALL_STATUS\",\"standardCode\":\"2\"}", com.alibaba.fastjson.JSON.toJSONString(standardGetQry2));
    }

    @Data
    public static class StandardGetQry1 {
        /**
         * 基础数据
         */
        @com.alibaba.fastjson.annotation.JSONField(unwrapped = true)
        private StandardBaseModel1 standardBaseModel;
    }

    @Data
    public static class StandardBaseModel1 {
        /**
         * 逻辑编码-标准KEY
         */
        @com.alibaba.fastjson.annotation.JSONField(name = "standardCode")
        private String code;

        /**
         * 标准类别
         */
        @com.alibaba.fastjson.annotation.JSONField(name = "standardCategory")
        private String category;
    }
}

期待的正确结果

期望两者的处理结果应保持一致

相关日志输出

Expected :{"standardCategory":"NEW_CALL_STATUS","standardCode":"2"}
Actual :{}
at Issue1158TestMutated_221.testMutated1(Issue1158TestMutated_221.java:62)

[wenshao]

https://oss.sonatype.org/content/repositories/snapshots/com/alibaba/fastjson2/fastjson2/2.0.50-SNAPSHOT/
问题已修复，请帮忙用2.0.50-SNAPSHOT版本验证，2.0.50版本预计在5月12日前发布

[Cooper-Zhong]

经验证该样例无问题，#2551 似乎存在问题

[wenshao]

https://github.com/alibaba/fastjson2/releases/tag/2.0.50
2.0.50已发布，请用新版本