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!1362 test(ReflectUtilTest): ReflectUtil#getFieldMap 如果子类与父类中存在同名字段，则后者覆盖前者。

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Merge pull request !1362 from tanpenggood/v5-master
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Looly 2025-06-20 03:01:21 +00:00 committed by Gitee
commit 3b759bfae1
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2 changed files with 34 additions and 2 deletions
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2
hutool-core/src/main/java/cn/hutool/core/util/ReflectUtil.java
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@ -153,7 +153,7 @@ public class ReflectUtil {
/**
* 获取指定类中字段名和字段对应的有序Map，包括其父类中的字段<br>
* 如果子类与父类中存在同名字段，则这两个字段同时存在，子类字段在前，父类字段在后。
* 如果子类与父类中存在同名字段，则后者覆盖前者。
*
* @param beanClass 类
* @return 字段名和字段对应的Map，有序

34
hutool-core/src/test/java/cn/hutool/core/util/ReflectUtilTest.java
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@ -1,5 +1,6 @@
package cn.hutool.core.util;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.date.TimeInterval;
import cn.hutool.core.date.Week;
@ -8,6 +9,7 @@ import cn.hutool.core.lang.test.bean.ExamInfoDict;
import cn.hutool.core.util.ClassUtilTest.TestSubClass;
import lombok.Data;
import static org.junit.jupiter.api.Assertions.*;
import lombok.experimental.FieldNameConstants;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
@ -18,6 +20,8 @@ import java.util.Collection;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;
/**
* 反射工具类单元测试
@ -79,11 +83,39 @@ public class ReflectUtilTest {
assertNotNull(privateField);
}
@Test
public void getFieldMapTest() {
// 获取指定类中字段名和字段对应的有序Map，包括其父类中的字段
// 如果子类与父类中存在同名字段，则后者覆盖前者。
Map<String, Field> fieldMap = ReflectUtil.getFieldMap(TestSubUser.class);
assertEquals(3, fieldMap.size());
}
@Test
public void getFieldsTest() {
// 能够获取到父类字段
final Field[] fields = ReflectUtil.getFields(TestSubClass.class);
Field[] fields = ReflectUtil.getFields(TestSubClass.class);
assertEquals(4, fields.length);
// 如果子类与父类中存在同名字段，则这两个字段同时存在，子类字段在前，父类字段在后。
fields = ReflectUtil.getFields(TestSubUser.class);
assertEquals(4, fields.length);
List<Field> idFieldList = Arrays.asList(fields).stream().filter(f -> Objects.equals(f.getName(), TestSubUser.Fields.id)).collect(Collectors.toList());
Field firstIdField = CollUtil.getFirst(idFieldList);
assertEquals(true, Objects.equals(firstIdField.getDeclaringClass().getName(), TestSubUser.class.getName()));
}
@Data
static class TestBaseEntity {
private Long id;
private String remark;
}
@Data
@FieldNameConstants
static class TestSubUser extends TestBaseEntity {
private Long id;
private String name;
}
@Test