如何将属性从一个Bean复制到另一个Bean并忽略嵌套对象的属性

import java.beans.PropertyDescriptor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class BeanUtils {
    public static void copyProperties(Object source, Object target) throws Exception {
        Class<?> sourceClass = source.getClass();
        Class<?> targetClass = target.getClass();

        // 获取源Bean和目标Bean的属性列表
        Field[] sourceFields = sourceClass.getDeclaredFields();
        Field[] targetFields = targetClass.getDeclaredFields();

        for (Field sourceField : sourceFields) {
            // 判断属性是否为嵌套对象
            if (isNestedObject(sourceField.getType())) {
                continue;
            }

            // 获取属性名
            String fieldName = sourceField.getName();

            // 获取源Bean属性的getter方法
            PropertyDescriptor sourcePropertyDescriptor = new PropertyDescriptor(fieldName, sourceClass);
            Method sourceGetter = sourcePropertyDescriptor.getReadMethod();

            // 获取目标Bean属性的setter方法
            PropertyDescriptor targetPropertyDescriptor = new PropertyDescriptor(fieldName, targetClass);
            Method targetSetter = targetPropertyDescriptor.getWriteMethod();

            // 获取源Bean属性的值
            Object value = sourceGetter.invoke(source);

            // 将属性值设置到目标Bean的对应属性上
            targetSetter.invoke(target, value);
        }
    }

    private static boolean isNestedObject(Class<?> clazz) {
        // 判断是否为嵌套对象，这里简单判断是否为Java自带类型
        return !clazz.isPrimitive() && !clazz.getName().startsWith("java");
    }
}

public class Main {
    public static void main(String[] args) throws Exception {
        SourceBean source = new SourceBean();
        source.setName("John");
        source.setAge(25);
        source.setAddress(new Address("123 Street", "City"));

        TargetBean target = new TargetBean();

        BeanUtils.copyProperties(source, target);

        System.out.println(target.getName()); // Output: John
        System.out.println(target.getAge()); // Output: 25
        System.out.println(target.getAddress()); // Output: null
    }
}

class SourceBean {
    private String name;
    private int age;
    private Address address;

    // getters and setters
}

class TargetBean {
    private String name;
    private int age;
    private Address address;

    // getters and setters
}

class Address {
    private String street;
    private String city;

    // getters and setters
}