java io操作3

package com.gxnu.bigdata.study.core.io.bean;

import java.io.Serializable;

public class  implements Serializable {
	private String name;
	private transient int age;
	
	public () {
		super();
	}
	
	public (String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}

	
	public String toString() {
		return "Dog [name=" + name + ", age=" + age + "]";
	}
	
}

package com.gxnu.bigdata.study.core.io.test;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.junit.Test;

import com.gxnu.bigdata.study.core.io.bean.Dog;


public class InputStreamEx {
	@Test
	public void testInputStream(){
		
	try(
			FileInputStream fis = new FileInputStream("d:\aaa.xml");
			BufferedInputStream bis = new BufferedInputStream(fis);
			) {
		byte[] arr = new byte[3];
		int len = 0;
		while((len=bis.read(arr))>0){
			String s = new String(arr,0,len);
			System.out.print(s);
		}
		
	} catch (Exception e) {
		e.printStackTrace();
		System.out.println(e.getMessage());
	}
											
	}
	
	@Test
	public void testOutputStream(){
		try (
				FileOutputStream fos = new FileOutputStream("d:/dog.ser");
				BufferedOutputStream bos = new BufferedOutputStream(fos);
				ObjectOutputStream oos = new ObjectOutputStream(bos);
				){
			Dog dog = new Dog("小黄",3);
			oos.writeObject(dog);
			
			//oos.writeUTF("我是xxx");
			
		} catch (Exception e) {
			e.printStackTrace();
			System.out.println(e.getMessage());
		}
	}
	
	@Test
	public void testTransient(){
		try(
			FileInputStream fis = new FileInputStream("d:/dog.ser");
			BufferedInputStream bis = new BufferedInputStream(fis);
			ObjectInputStream ois = new ObjectInputStream(bis);
				) {
			//ois.readObject();
			//ois.skipBytes(4);
			Dog dd = (Dog) ois.readObject();
			System.out.println(dd);//Dog [name=小黄, age=0]因为age用transient声明所以为0
			
		} catch (Exception e) {		
			e.printStackTrace();
			System.out.println(e.getMessage());
		}
	}
}