对象IO（序列化和反序列化）进行了对象的读写操作

旧城等待， 2021-11-11 16:56 249阅读 0赞

package SerializationAndDesserialization;//序列化和反序列化
    
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.ObjectInputStream;
    import java.io.ObjectOutputStream;
    import java.io.OutputStream;
    import java.io.Serializable;
    import java.nio.channels.FileChannel;
    import javax.swing.JFileChooser;
    /**
     * 对象的序列化和反列化
     * 
     * @author 李。文
     * @version 1.8
     * @date 2019年8月6日 上午8:44:40
     * @content JAVA代码
     * @motto 代码千万条，可读第一条。代码不规范，error多两行。
     */
    public class ObjectIODemo {
    	public static final String filePath = "c://test";
    
    	public static void main(String[] args) {
    		Player player = new Player("王炸", 5000, 1000);
    		JFileChooser fileChoose = new JFileChooser(filePath);
    		fileChoose.showOpenDialog(null);
    		File file = fileChoose.getSelectedFile();
             try(
                    FileOutputStream outputStream = new FileOutputStream(file);
    	         ObjectOutputStream objoutStream = new ObjectOutputStream(outputStream);
                )
    
    		{ // 将对象写入到指定文件中去
    			objoutStream.writeObject(player);
    
    		} catch (FileNotFoundException e) {
    
    			e.printStackTrace();
    		} catch (IOException e) {
    
    			e.printStackTrace();
    		} finally {
    			System.out.println("对象的已经写入到指定文件" + file.getName() + "中去");
    		}
    		// 进行反序列化
    		fileChoose.showOpenDialog(null);
    		File file1 = fileChoose.getSelectedFile();
    		Player player1 =null;
    		try (FileInputStream inputSteam = new FileInputStream(file1);
    				ObjectInputStream obinStream = new ObjectInputStream(inputSteam);) {
    			// 简单读取的对象赋值给一个新的对象
    			try {
    				 player1 = (Player) obinStream.readObject();
    			} catch (ClassNotFoundException e) {
    
    				e.printStackTrace();
    			}
    
    		} catch (FileNotFoundException e) {
    
    			e.printStackTrace();
    		} catch (IOException e) {
    
    			e.printStackTrace();
    		} finally {
    
    			System.out.println("读取玩家的信息为"+player1);
    		}
    
    	}
    
    }
    
    class Player implements Serializable {
    	// 序列号
    	private static final long serialVersionUID = 7906103700322856644L;
    	private int level; // 玩家的等级
    	private String name;// 玩家的名称
    	private int health;// 玩家的健康值
    	// 构造方法
    
    	public Player() {
    
    	}
    
    	public Player(String name, int level, int health) {
    		this.setHealth(health);
    		this.setLevel(level);
    		this.setName(name);
    
    	}
    
    	// 重写接口的toString方法
    	@Override
    	public String toString() {
    
    		return getName() + "\t" + getHealth() + "\t" + getLevel();
    	}
    
    	// 创建方法
    	public int getLevel() {
    		return level;
    	}
    
    	public void setLevel(int level) {
    		this.level = level;
    	}
    
    	public String getName() {
    		return name;
    	}
    
    	public void setName(String name) {
    		this.name = name;
    	}
    
    	public int getHealth() {
    		return health;
    	}
    
    	public void setHealth(int health) {
    		this.health = health;
    	}
    
    	public static long getSerialversionuid() {
    		return serialVersionUID;
    	}
    
    }

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