So verwenden Sie die Serializable-Schnittstelle, um die Serialisierung in Java zu implementieren

public class Person implements Serializable {
	private String name;
	private String age;

	public Person() {
		System.out.println("调用Person的无参构造函数");
	}

	public Person(String name, String age) {
		this.name = name;
		this.age = age;
		System.out.println("调用Person的有参构造函数");
	}

	@Override
	public String toString() {
		// TODO 自动生成的方法存根
		return "Person{'name' :" + name + ",'age' :" + age + "}";
	}
}

public class WriteObject {
	public static void main(String[] args) {
		try {
			ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("Person.txt"));
			Person p = new Person("baby", "12");
			oos.writeObject(p);
		} catch (Exception e) {
			// TODO: handle exception
		}
	}
}