Java的序列化和反序列化

        package com.IO;
        //自定義類：序列化
        import java.io.*;
        //Serializable必須呼叫他的String中的介面；否者序列號異常==重點
        public class Demo02 implements Serializable {
            //serialVersionUID為java序列號；用於反序列話識別==重點
            public static final long serialVersionUID = 12L;
            private String name;
            private double hight;

            public Demo02(String name, double hight) {
                this.name = name;
                this.hight = hight;
            }

            public String getName() {
                return name;
            }

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

            public double getHight() {
                return hight;
            }

            public void setHight(double hight) {
                this.hight = hight;
            }

            @Override
            public String toString() {
                return "Demo02{" +
                        "name='" + name + '\'' +
                        ", hight=" + hight +
                        '}';
            }

            public Demo02() {
            }
        }

        class Demo03{
            public static void main(String[] args) throws IOException {
                Demo02 demo02 = new Demo02("小茹",160.5);

                File file =new File("D://IDEA/Demo.txt");
                FileOutputStream fileOutputStream =new FileOutputStream(file);
                ObjectOutputStream objectOutputStream  = new ObjectOutputStream(fileOutputStream);
                objectOutputStream.writeObject(demo02);
                objectOutputStream.close();
            }
        }

 

進行反序列化

        package com.IO;

        import java.io.*;

        public class Test011 {
            public static void main(String[] args) throws IOException, ClassNotFoundException {
                File file = new File("D://IDEA/Demo.txt");
                FileInputStream fileInputStream =new FileInputStream(file);
                ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream);
                Object o = objectInputStream.readObject();
                System.out.println(o);
            }
        }