Question

java中将多个对象序列化后，存入txt文件，如何把对象一一的读出来，据说是用反序列化，具体怎么实现啊！

这是追加，序列化用到的程序，请各位帮下忙，老师留的作业，要交了
import java.io.*;

public class Zhuijia{
public static void main(String args[]) throws Exception {
T t = new T();

FileOutputStream fos = new FileOutputStream("E:/zuoye/io.txt",true);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(t);
oos.flush();
oos.close();

}
}

class T
implements Serializable
{
int i = 1;
int j = 1;
double d = 1.1;
int k = 1;
}

Answer 1

InputStream is = .......
ObjectInputStream ois = new ObjectInputStream(is); //创建从指定 InputStream 读取的 ObjectInputStream

User user = (User) ois.readObject(); //从 ObjectInputStream 读取对象 (aa反序列化)
user.introduceSelf();

Answer 2

只需要顺序调用readObject()这个方法就可以

FileInputStream fis = new FileInputStream("E:/zuoye/io.txt");

ObjectInputStream ois = new ObjectInputStream(fis);

T t1 = (T) ois.readObject();
T t2 = (T) ois.readObject();

......
T tn = (T) ois.readObject();

存了几个对象就调几次

Answer 3

用 ObjectInputStream读，强转成T就可以了

Answer 4

实现接口Serializable就行了

Answer 5

你可以参考《java编程思想》中关于激活与钝化的章节或者去网上搜一下