s-day10-static和transient在序列化中的使用

s-day10/src/com/inmind/object_stream03/Demo09.java

@@ -15,7 +15,7 @@ import java.io.ObjectOutputStream;
  */
 public class Demo09 {
     public static void main(String[] args) throws Exception {
-        Student student = new Student("张三", 18);
+        Student student = new Student("张三", 18,"123456");
         //获取序列化流对象，写出对象（将对象保存到文件中）
         FileOutputStream fos = new FileOutputStream("student.txt");
         ObjectOutputStream oos = new ObjectOutputStream(fos);

s-day10/src/com/inmind/object_stream03/Student.java

@@ -5,12 +5,27 @@ import java.io.Serializable;
 public class Student implements Serializable {
     String name;
     int age;
+    /*
+    注意：
+    1.静态内容只跟类有关，跟对象无关，所以序列化时静态内容不能被保存的
+    2.transient表示瞬态，瞬间的值，被它修饰的成员变量，就不能序列化
+     */
+
+    //static String password;//针对静态数据不能保存下来，但是会被共享，不符合业务
+    transient String password;//瞬态，该变量就不会被序列化
+
+    public Student(String name, int age, String password) {
+        this.name = name;
+        this.age = age;
+        this.password = password;
+    }
 
     @Override
     public String toString() {
         return "Student{" +
                 "name='" + name + '\'' +
                 ", age=" + age +
+                ", password='" + password + '\'' +
                 '}';
     }