import java.io.*;
import java.util.*;

class Logon implements Serializable {
private Date date = new Date();
private String username;
private transient String password;
Logon(String name, String pwd) {
username = name;
password = pwd;
}
public String toString() {
String pwd =
(password == null) ? "(n/a)" : password;
return "logon info: \n " +
"username: " + username +
"\n date: " + date.toString() +
"\n password: " + pwd;
}
public static void main(String[] args) {
Logon a = new Logon("Hulk", "myLittlePony");
System.out.println( "logon a = " + a);
try {
ObjectOutputStream o =
new ObjectOutputStream(
new FileOutputStream("Logon.out"));
o.writeObject(a);
o.close();
// Delay:
int seconds = 5;
long t = System.currentTimeMillis()
+ seconds * 1000;
while(System.currentTimeMillis() < t)
;
// Now get them back:
ObjectInputStream in =
new ObjectInputStream(
new FileInputStream("Logon.out"));
System.out.println(
"Recovering object at " + new Date());
a = (Logon)in.readObject();
System.out.println( "logon a = " + a);
} catch(Exception e) {
e.printStackTrace();
}
}
} ///:~

寫的很好。切中要點

例子挺好，明白了，謝啦@cheng

@cheng
很好很強大

一看例子就明白了，寫的挺好的。

看來我對持久化和序列化的了解連皮毛都算不上阿，這個例子簡單明了，很好，不過這個blog對code的支持不夠友好阿，多謝博主