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Java中的transient关键字

2014-09-09 22:49 411 查看
transient说明一个属性是临时的,不会被序列化。

下面是一个Demo,name声明为 transient,不被序列化

package com.zzs.tet;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.io.Serializable;

public class TransientDemo implements Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
private  transient String name;
private String password;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

/**
* @param args
* @throws IOException
* @throws FileNotFoundException
* @throws ClassNotFoundException
*/
public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {
// TODO Auto-generated method stub
String path="D:"+File.separator+"object.txt";
File file=new File(path);
TransientDemo transientDemo=new TransientDemo();
transientDemo.setName("姓名");
transientDemo.setPassword("密码");
ObjectOutput output=new ObjectOutputStream(new FileOutputStream(file));
output.writeObject(transientDemo);
ObjectInput input=new ObjectInputStream(new FileInputStream(file));
TransientDemo demo=(	TransientDemo )input.readObject();
System.out.println(demo.getName()+demo.getPassword());
}

}


输出

null密码
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