Java-Serialize and Deserialize
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Java提供了一个机制叫做:对象序列化(Object Serialization)可以将Java对象的类型信息和对象携带的数据信息持久化写入到文件, 然后在另外的程序中读出保持原样.
这样一来, 一个对象可以在A地持久化之后, 传到B处使用.
与之有关的类分别是ObjectInputStream和ObjectOutputStrream; 要使一个类的对象可以被持久化, 那么这个类必须实现Serializable接口
//希望被序列化的类public class Person implements Serializable{ long id; String name; int age; public Person(long id, String name, int age) { this.id = id; this.name = name; this.age = age; } @Override public String toString() { return "Person{" + "id=" + id + ", name='" + name + '\'' + ", age=" + age + '}'; }}public class Test { public static void main(String[] args) throws Exception{ Person p = new Person(12, "闫家洪", 24); //序列化后的文件 String fp = "F:/test/person2.obj"; FileOutputStream fos = new FileOutputStream(fp); ObjectOutputStream oos = new ObjectOutputStream(fos); //序列化关键方法 oos.writeObject(p); //记得关闭流 oos.close(); fos.close(); //反序列化 FileInputStream fis = new FileInputStream(fp); ObjectInputStream ois = new ObjectInputStream(fis); Person p1 = (Person) ois.readObject(); ois.close(); fis.close(); //打印反序列化后的对象 System.out.println(p1); }}
参考文章:
Tutorials Point: Java Serialization
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