Java serialization and deserialization
When reviewing the basics of Java, I recalled that there was a prototype pattern that used deep copy, that is, serialization and deserialization, so I wrote this article.
Book.java
import java.io.*;
public class Book implements Serializable {
private int id;
private String name;
private double price;
public Book() {
}
public Book(int id, String name, double price) {
this.id = id;
this.name = name;
this.price = price;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
@Override
public String toString() {
return "Book{" +
"id=" + id +
", name='" + name + '\'' +
", price=" + price +
'}';
}
}
ObjectStream.java
import java.io.*;
public class ObjectStream {
public static void main(String[] args) {
try {
Book book = new Book(1,"Java",30);
System.out.println(book);
// 序列化 对象->字节流
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(book);
// 反序列化 字节流->对象
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bais);
Book bookCopy = (Book) ois.readObject();
System.out.println(bookCopy);
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
Console
