---转发 Java中的transient

[color=orange]Java中的transient，看jdk源码的时候突然忘了这个是什么了，查了一下，是用于声明序列化的时候不被存储的，在这里记下

example:   
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(); 
} 
} 
} ///:~

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