您的位置：首页 > 编程语言 > Java开发

java 对象输入输出流读写文件的操作实例

2017-07-30 16:58 791 查看

java 对象输入输出流读写文件的操作实例

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：

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]

如有疑问请留言或者到本站社区交流讨论，本站关于java开发的文章还有很多，希望大家搜索查阅，感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！

您可能感兴趣的文章:

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签： java 流

相关文章推荐

新的分享

章节导航