javakryo序列化,java–如何使用Kryo序列化对象并再次反序列化？

Kryo的语法与

java序列化相似.创建kryo对象以及输出/输入,并使用kryos方法之一来执行序列化/反序列化

> kryo.writeClassAndObject(output,object); //如果具体类未知(可以为null)

> kryo.writeObjectOrNull(output,someObject); //如果对象可以为null

> kryo.writeObject(output,someObject); //不能为null,具体类是已知的

每个写入与读取配对

> SomeClass object &＃61;(SomeClass)kryo.readClassAndObject(input);

> SomeClass someObject &＃61; kryo.readObjectOrNull(input,SomeClass.class);

> SomeClass someObject &＃61; kryo.readObject(input,SomeClass.class);

以下是使用writeClassAndObject的示例,该函数将Vector3d序列化为文件并再次返回.

public class KryoTest {

public static void main(String[] args){

Vector3d someObject&＃61;new Vector3d(1,2,3);

//serialise object

//try-with-resources used to autoclose resources

try (Output output &＃61; new Output(new FileOutputStream("KryoTest.ser"))) {

Kryo kryo&＃61;new Kryo();

kryo.writeClassAndObject(output, someObject);

} catch (FileNotFoundException ex) {

Logger.getLogger(KryTest.class.getName()).log(Level.SEVERE, null, ex);

}

//deserialise object

Vector3d retrievedObject&＃61;null;

try (Input input &＃61; new Input( new FileInputStream("KryoTest.ser"))){

Kryo kryo&＃61;new Kryo();

retrievedObject&＃61;(Vector3d)kryo.readClassAndObject(input);

} catch (FileNotFoundException ex) {

Logger.getLogger(KryTest.class.getName()).log(Level.SEVERE, null, ex);

}

System.out.println("Retrieved from file: " &＃43; retrievedObject.toString());

}

}