序列化对象和反序列化对象

浅浅的花香味﹌ 2022-04-24 13:52 350阅读 0赞

源：[https://www.cnblogs.com/chenpi/p/6185773.html][https_www.cnblogs.com_chenpi_p_6185773.html]

package tmp;

import java.io.FileInputStream;  
import java.io.FileOutputStream;  
import java.io.ObjectInputStream;  
import java.io.ObjectOutputStream;  
import java.io.Serializable;

class Rectangle implements Serializable\{

/\*\*  
     \*  
     \*/  
    private static final long serialVersionUID = 1710022455003682613L;  
    private Integer width;  
    private Integer height;  
    private transient Integer area;

public Rectangle (Integer width, Integer height)\{  
        this.width = width;  
        this.height = height;  
        this.area = width \* height;  
    \}

public void setArea()\{  
        this.area = this.width \* this.height;  
    \}

@Override  
    public String toString()\{  
        StringBuffer sb = new StringBuffer(40);  
        sb.append("width : ");  
        sb.append(this.width);  
        sb.append("\\nheight : ");  
        sb.append(this.height);  
        sb.append("\\narea : ");  
        sb.append(this.area);  
        return sb.toString();  
    \}  
\}

public class TransientExample\{  
    public static void main(String args\[\]) throws Exception \{  
        Rectangle rectangle = new Rectangle(3,4);  
        System.out.println("1.原始对象\\n"+rectangle);  
        ObjectOutputStream o = new ObjectOutputStream(new FileOutputStream("rectangle"));  
        // 往流写入对象  
        o.writeObject(rectangle);  
        o.close();

// 从流读取对象  
        ObjectInputStream in = new ObjectInputStream(new FileInputStream("rectangle"));  
        Rectangle rectangle1 = (Rectangle)in.readObject();  
        System.out.println("2.反序列化后的对象\\n"+rectangle1);  
        rectangle1.setArea();  
        System.out.println("3.恢复成原始对象\\n"+rectangle1);  
        in.close();  
    \}  
\}

[https_www.cnblogs.com_chenpi_p_6185773.html]: https://www.cnblogs.com/chenpi/p/6185773.html