JAVA语言。对深度复制对象使用反射

import java.lang.reflect.Field;

public class DeepCopyExample {
    public static void main(String[] args) throws Exception {
        // 原始对象
        Person person = new Person("John", 25);
        
        // 创建新的对象
        Person newPerson = (Person) deepCopy(person);
        
        // 输出新对象的属性值
        System.out.println(newPerson.getName()); // 输出 "John"
        System.out.println(newPerson.getAge()); // 输出 25
    }
    
    public static Object deepCopy(Object obj) throws Exception {
        // 获取原始对象的类信息
        Class<?> clazz = obj.getClass();
        
        // 创建新的对象
        Object newObj = clazz.newInstance();
        
        // 复制属性值
        Field[] fields = clazz.getDeclaredFields();
        for (Field field : fields) {
            field.setAccessible(true);
            Object value = field.get(obj);
            
            // 如果属性是引用类型，递归进行深度复制
            if (value != null && !field.getType().isPrimitive()) {
                value = deepCopy(value);
            }
            
            field.set(newObj, value);
        }
        
        return newObj;
    }
}

class Person {
    private String name;
    private int age;
    
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
    
    public String getName() {
        return name;
    }
    
    public int getAge() {
        return age;
    }
}