Details of Java serialization and deserialization instances

Details of Java serialization and deserialization instances

In distributed applications, objects can only be serialized between distributed components, which involves two aspects of the technology - the sender serializes the object, the receiver deserializes the object, here is a good example!

1. Entity - Employee

import java.io.Serializable; 
 
public class Employee implements Serializable{ 
  /** 
   * 
   */ 
  private static final long serialVersionUID = 1L; 
  public String getName() { 
    return name; 
  } 
  public void setName(String name) { 
    this.name = name; 
  } 
  public int getAge() { 
    return age; 
  } 
  public void setAge(int age) { 
    this.age = age; 
  } 
  private String name; 
  private int age; 
} 

2.SerializeHelper

import java.io.ByteArrayInputStream; 
import java.io.ByteArrayOutputStream; 
import java.io.IOException; 
import java.io.ObjectInputStream; 
import java.io.ObjectOutputStream; 
 
public class SerializeHelper { 
  public byte[] Serialize(Object object) { 
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); 
    try { 
      ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream); 
      // Writes the object to a byte array for serialization  
      objectOutputStream.writeObject(object); 
      return byteArrayOutputStream.toByteArray(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
    return null; 
  } 
   
  public Object deSerialize(byte[] bytes) { 
    // will 2 A hexadecimal array is imported into a byte data stream  
    ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes); 
    try { 
      // Converts a byte array into an object  
      ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream); 
      return objectInputStream.readObject(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } catch (ClassNotFoundException e) { 
      e.printStackTrace(); 
    } 
    return null; 
  } 
} 

3. The test class

public class Hello { 
 
  /** 
   * @param args 
   */ 
  public static void main(String[] args) { 
    // TODO Auto-generated method stub 
    SerializeHelper serializeHelper = new SerializeHelper(); 
    Employee employee = new Employee(); 
    employee.setName("admin"); 
    employee.setAge(20); 
    byte[] serializObject = serializeHelper.Serialize(employee); 
    System.out.println(serializObject); 
     
    Employee e = (Employee)serializeHelper.deSerialize(serializObject); 
    System.out.println("Name: " + e.getName()+",Age: " + e.getAge()); 
  } 
} 

4. The output

[B@e05d173 
Name: admin,Age: 20 

5. To summarize

There are other frameworks available for serialization and deserialization, such as Hession, and we'll have a chance to look at them again!

Thank you for reading, I hope to help you, thank you for your support to this site!