java 序列化与反序列化

序列化对象

import java.io.Serializable;public class User implements Serializable {PRivate static final long serialVersionUID = 1L;private transient String id;private String name;public User(String id, String name) {super();this.id = id;this.name = name;}public String getId() {return id;}public void setId(String id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}}

序列化

public static byte[] writeObj(Object obj) throws Exception{ByteArrayOutputStream output = new ByteArrayOutputStream();ObjectOutputStream objectOutputStream = new ObjectOutputStream(output);objectOutputStream.writeObject(obj);objectOutputStream.close();output.close();return output.toByteArray();}

反序列化

public static Object readObj(byte[] bytes) throws Exception

{ByteArrayInputStream input = new ByteArrayInputStream(bytes);ObjectInputStream objectinputstream = new ObjectInputStream(input);Object obj = objectinputstream.readObject();objectinputstream.close();input.close();return obj;}

注意事项

1.序列化对象需要实现Serializable接口。

2.对象的属性中对transient关键字，那么此属性值将不会被序列化。