1.transient用来防止对象下的成员变量被串行化
2.测试代码
package com.knife;
public class A implements java.io.Serializable {
private static final long serialVersionUID = 1L;
private String name;
private transient String pw;
public A(String name, String pw) {
this.name = name;
this.pw = pw;
}
public String toString() {
return "[name:\"" + name + "\",pw:\"" + pw + "\"]";
}
}
package com.knife;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
public class Test {
public static void main(String args[]) {
A a = new A("knife", "123456");
System.out.println(a.toString());
try {
ObjectOutputStream o = new ObjectOutputStream(new FileOutputStream("a.out"));
o.writeObject(a);
o.close();
} catch (Exception e) {
}
try {
ObjectInputStream in = new ObjectInputStream(new FileInputStream("a.out"));
A a1 = (A) in.readObject();
System.out.println(a1.toString());
} catch (Exception e) {
}
}
}
3.结果
[name:"knife",pw:"123456"]
[name:"knife",pw:"null"]