java 对象输入输出流读写文件的操作实例
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：
packagevo;
importjava.io.Serializable;
publicclassAnimalimplementsSerializable{
privatestaticfinallongserialVersionUID=1L;
privateStringname;
privateIntegerweight;
privateStringcolor;
privateStringtype;
privateIntegerage;
privateIntegerlifetime;
publicStringgetName(){
returnname;
}
publicvoidsetName(Stringname){
this.name=name;
}
publicIntegergetWeight(){
returnweight;
}
publicvoidsetWeight(Integerweight){
this.weight=weight;
}
publicStringgetColor(){
returncolor;
}
publicvoidsetColor(Stringcolor){
this.color=color;
}
publicStringgetType(){
returntype;
}
publicvoidsetType(Stringtype){
this.type=type;
}
publicIntegergetAge(){
returnage;
}
publicvoidsetAge(Integerage){
this.age=age;
}
publicIntegergetLifetime(){
returnlifetime;
}
publicvoidsetLifetime(Integerlifetime){
this.lifetime=lifetime;
}
publicAnimal(Stringname,Integerweight,Stringcolor,Stringtype,Integerage,Integerlifetime){
super();
this.name=name;
this.weight=weight;
this.color=color;
this.type=type;
this.age=age;
this.lifetime=lifetime;
}
@Override
publicStringtoString(){
return"Animal[name="+name+",weight="+weight+",color="+color+",type="+type+",age="+age+",lifetime="+lifetime+"]";
}
}
packageobjectstream;
importjava.io.File;
importjava.io.FileInputStream;
importjava.io.FileOutputStream;
importjava.io.ObjectInputStream;
importjava.io.ObjectOutputStream;
importvo.Animal;
publicclassTestObjectStream{
publicstaticvoidmain(String[]args){
try{
ObjectOutputStreamoos=newObjectOutputStream(newFileOutputStream(newFile("d:/oos.dat")));
Animala1=newAnimal("tiger",120,"red","cat",12,20);
Animala2=newAnimal("eagle",10,"gold","bird",6,10);
oos.writeObject(a1);
oos.writeObject(a2);
oos.flush();
oos.close();
ObjectInputStreamois=newObjectInputStream(newFileInputStream("d:/oos.dat"));
Animalra1=(Animal)ois.readObject();
System.out.println(ra1.toString());
Animalra2=(Animal)ois.readObject();
System.out.println(ra2.toString());
}catch(Exceptione){
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！