继续请问序列化为二进制字节流的有关问题

继续请教序列化为二进制字节流的问题！
小弟是个菜鸟，这点无可置疑。刚刚学习到对象序列化，搞的很是头大，刚刚解决了xstream序列化xml的问题，又碰到了序列化字节流的问题。十分感谢huntor大大为我解决的xstream问题，很难想象他居然为了这个问题去搭建了一个一模一样的环境来帮我解决，十分感动！
然而新手碰到的问题是层出不穷的。这又遇到了序列化字节流的问题老是报ClassCastException，十分郁闷。上网查可序列化的类型，查不到想要的，查到的最多说的是什么static、transient修饰的不能序列化。但是看得2眼发黑，厚颜再来求教，望各位不吝赐教！
类SE代码

Java code


package cn.java.file;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Date;

public class SE implements Externalizable{
    private String name;
    private Gender gender;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Gender getGender() {
        return gender;
    }
    public void setGender(Gender gender) {
        this.gender = gender;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public SE(String name, Gender gender, int age) {
        super();
        this.name = name;
        this.gender = gender;
        this.age = age;
    }
    public SE() {
        super();
    }
    //当反序列化对象时,该方法自动调用
    @Override
    public void readExternal(ObjectInput in) throws IOException,
            ClassNotFoundException {
        System.out.println("反序列化方法执行。");
        Date d=(Date)in.readObject();
        System.out.println(d);
        this.setName(in.readObject().toString());
        this.setGender((Gender)in.readObject());
        this.setAge((int)(in.readObject()));
    }
    //当序列化对象时,该方法自动调用
    @Override
    public void writeExternal(ObjectOutput out) throws IOException {
        System.out.println("序列化方法执行。");
        Date d=new Date();
        System.out.println(d);
        out.writeObject(d);
        out.writeObject(this.getGender());
        out.writeObject(this.getName());
        out.writeObject(this.getAge());
    }
    @Override
    public String toString() {
        return "年龄：  " + age +  "名字：  "+name+"性别：  "+gender;
    }
    
}
enum Gender{
    Female,Male
}

Java code


package cn.java.file;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
public class SerinalizableSE {
    /**
     * 序列化对象到文件
     * @param fileName
     */
    public static void serialize(String fileName){
        try {
            ObjectOutputStream out=new ObjectOutputStream(new FileOutputStream(fileName));
            SE s1,s2,s3;
            s1=new SE("lori",Gender.Male,27);
            s2=new SE("winter",Gender.Male,21);
            s3=new SE("super",Gender.Female,25);
            out.writeObject(s1);
            out.writeObject(s2);
            out.writeObject(s3);
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * 从文件反序列化到对象
     * @param fileName
     */
    public static void deserialize(String fileName){
        SE []se=new SE[3];
        try {
            ObjectInputStream in=new ObjectInputStream(new FileInputStream(fileName));
            se[0]=(SE)(in.readObject());
            se[1]=(SE)(in.readObject());
            se[2]=(SE)(in.readObject());
            for (int i = 0; i < se.length; i++) {
                System.out.println(se[i].toString());
            }
            in.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        
    }
    public static void main(String[] args) {
        //序列化对象
        SerinalizableSE.serialize("D:\\SE.txt");
        System.out.println("序列化完毕");
        //反序列化对象
        SerinalizableSE.deserialize("D:\\SE.txt");
        System.out.println("反序列化完毕");
    }
}

继续请问序列化为二进制字节流的有关问题

相关推荐