自定义的类实现KryoSerialiazble接口应该怎么做
时间: 2024-02-09 15:09:03 浏览: 41
要实现KryoSerializable接口,需要按照以下步骤进行操作:
1.导入相关的依赖和包:
```java
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import com.esotericsoftware.kryo.serializers.FieldSerializer;
import org.objenesis.strategy.StdInstantiatorStrategy;
```
2.定义自定义类,并实现KryoSerializable接口,例如:
```java
public class MyClass implements KryoSerializable {
private int myInt;
private String myString;
public MyClass(int myInt, String myString) {
this.myInt = myInt;
this.myString = myString;
}
public MyClass() {
}
@Override
public void write(Kryo kryo, Output output) {
output.writeInt(myInt);
output.writeString(myString);
}
@Override
public void read(Kryo kryo, Input input) {
myInt = input.readInt();
myString = input.readString();
}
}
```
3.使用Kryo注册FieldSerializer,例如:
```java
Kryo kryo = new Kryo();
kryo.setInstantiatorStrategy(new StdInstantiatorStrategy());
FieldSerializer<MyClass> serializer = new FieldSerializer<>(kryo, MyClass.class);
kryo.register(MyClass.class, serializer);
```
4.使用Kryo序列化和反序列化对象,例如:
```java
MyClass myClass = new MyClass(1, "hello");
Output output = new Output(new FileOutputStream("myClass.bin"));
kryo.writeObject(output, myClass);
output.close();
Input input = new Input(new FileInputStream("myClass.bin"));
MyClass deserialized = kryo.readObject(input, MyClass.class);
input.close();
```
这样,自定义类就可以通过实现KryoSerializable接口来使用Kryo进行序列化和反序列化了。