添加clone的默认接口类

hutool-core/src/main/java/cn/hutool/core/clone/DefaultClone.java

@@ -0,0 +1,29 @@
+package cn.hutool.core.clone;
+
+
+import java.lang.reflect.Method;
+
+public interface DefaultClone extends java.lang.Cloneable {
+
+	/**
+	 * 浅拷贝
+	 * 功能与 {@link CloneSupport#clone()} 类似, 是一种接口版的实现
+	 * 一个类，一般只能继承一个类,但是可以实现多个接口,所以该接口会有一定程度的灵活性
+	 *
+	 * @param <T> T
+	 * @return obj
+	 */
+	@SuppressWarnings({"unchecked"})
+	default <T> T clone0() {
+		try {
+			final Class<Object> objectClass = Object.class;
+			final Method clone = objectClass.getDeclaredMethod("clone");
+			clone.setAccessible(true);
+			return (T) clone.invoke(this);
+		} catch (Exception e) {
+			throw new CloneRuntimeException(e);
+		}
+	}
+}
+
+

hutool-core/src/test/java/cn/hutool/core/clone/DefaultCloneTest.java

@@ -0,0 +1,86 @@
+package cn.hutool.core.clone;
+
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class DefaultCloneTest {
+
+	@Test
+	public void clone0() {
+		Car oldCar = new Car();
+		oldCar.setId(1);
+		oldCar.setWheelList(Stream.of(new Wheel("h")).collect(Collectors.toList()));
+
+		Car newCar = oldCar.clone0();
+		Assert.assertEquals(oldCar.getId(),newCar.getId());
+		Assert.assertEquals(oldCar.getWheelList(),newCar.getWheelList());
+
+		newCar.setId(2);
+		Assert.assertNotEquals(oldCar.getId(),newCar.getId());
+		newCar.getWheelList().add(new Wheel("s"));
+
+		Assert.assertNotSame(oldCar, newCar);
+
+	}
+
+}
+
+class Car implements DefaultClone {
+	private Integer id;
+	private List<Wheel> wheelList;
+
+	public Integer getId() {
+		return id;
+	}
+
+	public void setId(Integer id) {
+		this.id = id;
+	}
+
+	public List<Wheel> getWheelList() {
+		return wheelList;
+	}
+
+	public void setWheelList(List<Wheel> wheelList) {
+		this.wheelList = wheelList;
+	}
+
+	@Override
+	public String toString() {
+		return "Car{" +
+				"id=" + id +
+				", wheelList=" + wheelList +
+				'}';
+	}
+}
+
+
+class Wheel {
+	private String direction;
+
+	public Wheel(String direction) {
+		this.direction = direction;
+	}
+
+	public String getDirection() {
+		return direction;
+	}
+
+	public void setDirection(String direction) {
+		this.direction = direction;
+	}
+
+	@Override
+	public String toString() {
+		return "Wheel{" +
+				"direction='" + direction + '\'' +
+				'}';
+	}
+}
+
+