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Java 序列化和反序列化实例详解

2019年07月22日 | 移动技术网IT编程 | 我要评论

java 序列化和反序列化实例详解

在分布式应用中，对象只有经过序列化才能在各个分布式组件之间传输，这就涉及到两个方面的技术-发送者将对象序列化，接受者将对象反序列化，下面就是一个很好的例子！

1.实体-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); 
      //将对象写入到字节数组中进行序列化 
      objectoutputstream.writeobject(object); 
      return bytearrayoutputstream.tobytearray(); 
    } catch (ioexception e) { 
      e.printstacktrace(); 
    } 
    return null; 
  } 
   
  public object deserialize(byte[] bytes) { 
    //将二进制数组导入字节数据流中 
    bytearrayinputstream bytearrayinputstream = new bytearrayinputstream(bytes); 
    try { 
      //将字节数组流转化为对象 
      objectinputstream objectinputstream = new objectinputstream(bytearrayinputstream); 
      return objectinputstream.readobject(); 
    } catch (ioexception e) { 
      e.printstacktrace(); 
    } catch (classnotfoundexception e) { 
      e.printstacktrace(); 
    } 
    return null; 
  } 
}

3.测试类

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.输出