java 对象输入输出流读写文件的操作实例_Java教程

java 对象输入输出流读写文件的操作实例

2020-12-08 14:52nello Java教程

这篇文章主要介绍了java 对象输入输出流读写文件的操作实例的相关资料,这里使用实现Serializable接口，需要的朋友可以参考下

java 支持对对象的读写操作，所操作的对象必须实现Serializable接口。

实例代码：

									package vo; 

									import java.io.Serializable; 

									public class Animal implements Serializable { 

									  private static final long serialVersionUID = 1L; 

									  private String name; 

									  private Integer weight; 

									  private String color; 

									  private String type; 

									  private Integer age; 

									  private Integer lifetime; 

									  public String getName() { 

									    return name; 

									  } 

									  public void setName(String name) { 

									    this.name = name; 

									  } 

									  public Integer getWeight() { 

									    return weight; 

									  } 

									  public void setWeight(Integer weight) { 

									    this.weight = weight; 

									  } 

									  public String getColor() { 

									    return color; 

									  } 

									  public void setColor(String color) { 

									    this.color = color; 

									  } 

									  public String getType() { 

									    return type; 

									  } 

									  public void setType(String type) { 

									    this.type = type; 

									  } 

									  public Integer getAge() { 

									    return age; 

									  } 

									  public void setAge(Integer age) { 

									    this.age = age; 

									  } 

									  public Integer getLifetime() { 

									    return lifetime; 

									  } 

									  public void setLifetime(Integer lifetime) { 

									    this.lifetime = lifetime; 

									  } 

									  public Animal(String name, Integer weight, String color, String type, Integer age, Integer lifetime) { 

									    super(); 

									    this.name = name; 

									    this.weight = weight; 

									    this.color = color; 

									    this.type = type; 

									    this.age = age; 

									    this.lifetime = lifetime; 

									  } 

									  @Override

									  public String toString() { 

									    return "Animal [name=" + name + ", weight=" + weight + ", color=" + color + ", type=" + type + ", age=" + age + ", lifetime=" + lifetime + "]"; 

									  } 

									}

									package objectstream; 

									import java.io.File; 

									import java.io.FileInputStream; 

									import java.io.FileOutputStream; 

									import java.io.ObjectInputStream; 

									import java.io.ObjectOutputStream; 

									import vo.Animal; 

									public class TestObjectStream { 

									  public static void main(String[] args) { 

									    try { 

									      ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(new File("d:/oos.dat"))); 

									      Animal a1 = new Animal("tiger", 120, "red", "cat", 12, 20); 

									      Animal a2 = new Animal("eagle", 10, "gold", "bird", 6, 10); 

									      oos.writeObject(a1); 

									      oos.writeObject(a2); 

									      oos.flush(); 

									      oos.close(); 

									      ObjectInputStream ois = new ObjectInputStream(new FileInputStream("d:/oos.dat")); 

									      Animal ra1 = (Animal) ois.readObject(); 

									      System.out.println(ra1.toString()); 

									      Animal ra2 = (Animal) ois.readObject(); 

									      System.out.println(ra2.toString()); 

									    } catch (Exception e) { 

									      e.printStackTrace(); 

									    } 

									  } 

									}

输出结果：

1 2	`Animal [name=tiger, weight=120, color=red, type=cat, age=12, lifetime=20]` `Animal [name=eagle, weight=10, color=gold, type=bird, age=6, lifetime=10]`