List(1) : 深度拷貝

參考 : https://blog.csdn.net/cn12306com/article/details/80829734 

 注 : 被複制的對象必須實現 Serializable 接口

拷貝實現如下

import java.io.*;
import java.util.LinkedList;
import java.util.List;

/**
 * @Auther: liyue
 * @Date: 2020/6/30 10:57
 * @Description:
 */
public class ListUtil {

    public static void main(String[] args) throws Exception {
        List<Test> list = new LinkedList<>();
        list.add(new Test("1", "2"));
        List<Test> list2 = deepCopy(list);
        System.err.println(list.get(0));
        System.err.println(list2.get(0));
    }

    @SuppressWarnings("unchecked")
    public static <T> List<T> deepCopy(List<T> src) {
        List<T> dest = null;
        try {
            ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(byteOut);
            out.writeObject(src);
            ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());
            ObjectInputStream in = new ObjectInputStream(byteIn);
            dest = (List<T>) in.readObject();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        return dest;
    }
}

Test.java

import java.io.Serializable;

/**
 * @Auther: liyue
 * @Date: 2020/6/30 10:57
 * @Description:
 */
public class Test implements Serializable {


    private static final long serialVersionUID = 7446300906378730156L;
    private String name;
    private String age;

    public Test() {
    }

    public Test(String name, String age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }
}

 

 

END。