将对象追加到序列化文件

您必须首先使用常规ObjectOutputStream编写流头，否则在使用ObjectInputStream打开文件时会得到java.io.StreamCorruptedException。

public class Test1 implements Serializable {    public static void main(String[] args) throws Exception {        ObjectOutputStream os1 = new ObjectOutputStream(new FileOutputStream("test"));        os1.writeObject(new Test1());        os1.close();        ObjectOutputStream os2 = new ObjectOutputStream(new FileOutputStream("test", true)) { protected void writeStreamHeader() throws IOException {     reset(); }        };        os2.writeObject(new Test1());        os2.close();        ObjectInputStream is = new ObjectInputStream(new FileInputStream("test"));        System.out.println(is.readObject());        System.out.println(is.readObject());