https://blog.csdn.net/lan12334321234/article/details/84907492

实用

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.Serializable;

import java.util.ArrayList;

import java.util.List;

import org.apache.commons.codec.binary.Base64;

import com.esotericsoftware.kryo.Kryo;

import com.esotericsoftware.kryo.io.Input;

import com.esotericsoftware.kryo.io.Output;

import com.esotericsoftware.kryo.serializers.CollectionSerializer;

import com.esotericsoftware.kryo.serializers.JavaSerializer;

public class KyroTest {

public static void main(String[] args) {

List list = new ArrayList();

Person p ;

for(int i=0;i<=100000;i++){

p = new Person();

p.setId(i);

list.add(p);

}

long begin = System.currentTimeMillis();

String listStr = serializationList(list,Person.class);

System.out.println(listStr.length());

System.out.println(System.currentTimeMillis()-begin);

begin = System.currentTimeMillis();

deserializationList(listStr,Person.class);

System.out.println(System.currentTimeMillis()-begin);

}

@SuppressWarnings("all")

private static String serializationList(List obj, Class clazz) {

Kryo kryo = new Kryo();

kryo.setReferences(false);

kryo.setRegistrationRequired(true);

CollectionSerializer serializer = new CollectionSerializer();

serializer.setElementClass(clazz, new JavaSerializer());

serializer.setElementsCanBeNull(false);

kryo.register(clazz, new JavaSerializer());

kryo.register(ArrayList.class, serializer);

ByteArrayOutputStream baos = new ByteArrayOutputStream();

Output output = new Output(baos);

kryo.writeObject(output, obj);

output.flush();

output.close();

byte[] b = baos.toByteArray();

try {

baos.flush();

baos.close();

} catch (IOException e) {

e.printStackTrace();

}

return new String(new Base64().encode(b));

}

@SuppressWarnings("all")

private static List deserializationList(String obj, Class clazz) {

Kryo kryo = new Kryo();

kryo.setReferences(false);

kryo.setRegistrationRequired(true);

CollectionSerializer serializer = new CollectionSerializer();

serializer.setElementClass(clazz, new JavaSerializer());

serializer.setElementsCanBeNull(false);

kryo.register(clazz, new JavaSerializer());

kryo.register(ArrayList.class, serializer);

ByteArrayInputStream bais = new ByteArrayInputStream(new Base64().decode(obj));

Input input = new Input(bais);

return (List) kryo.readObject(input, ArrayList.class, serializer);

}

/**

* 序列化对象

*

* @param obj

* @return

*/

@SuppressWarnings("all")

private static String serializationObject(T obj) {

Kryo kryo = new Kryo();

kryo.setReferences(false);

kryo.register(obj.getClass(), new JavaSerializer());

ByteArrayOutputStream baos = new ByteArrayOutputStream();

Output output = new Output(baos);

kryo.writeClassAndObject(output, obj);

output.flush();

output.close();

byte[] b = baos.toByteArray();

try {

baos.flush();

baos.close();

} catch (IOException e) {

e.printStackTrace();

}

return new String(new Base64().encode(b));

}

/**

* 反序列化

*

* @param obj

* @param clazz

* @return

*/

@SuppressWarnings("all")

private T deserializationObject(String obj, Class clazz) {

Kryo kryo = new Kryo();

kryo.setReferences(false);

kryo.register(clazz, new JavaSerializer());

ByteArrayInputStream bais = new ByteArrayInputStream(new Base64().decode(obj));

Input input = new Input(bais);

return (T) kryo.readClassAndObject(input);

}

}

class Person implements Serializable{

private static final long serialVersionUID = 1L;

private int id ;

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

}

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作者：艾伦蓝

来源：CSDN

原文：https://blog.csdn.net/lan12334321234/article/details/84907492

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