Transient keyword in Java
- 2020-04-01 03:47:43
- OfStack
Transient indicates that an attribute is temporary and will not be serialized.
The following is a Demo. The name is declared as transient and is not serialized
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;
}
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(" The name ");
transientDemo.setPassword(" password ");
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());
}
}
Output results:
Null password