MessagePack Java 0.6.X 多種類型變量的序列化和反序列化（serializati

類?Packer/Unpacker?允許序列化和反序列化多種類型的變量，如后續程序所示。這個類啟用序列化和反序列化多種類型的變量和序列化主要類型變量以及包裝類，String?對象，byte[]?對象，?ByteBuffer?對象等的方法相似。

如上面提示的，你可以序列化和反序列化你自己的對象，前提是你自己的對象需要使用?@Message?注解。

package?com.insight.demo.msgpack;

import?org.junit.Test;
import?org.msgpack.MessagePack;
import?org.msgpack.packer.Packer;
import?org.msgpack.unpacker.Unpacker;
import?org.slf4j.Logger;
import?org.slf4j.LoggerFactory;

import?java.io.ByteArrayInputStream;
import?java.io.ByteArrayOutputStream;
import?java.math.BigInteger;
import?java.nio.ByteBuffer;

/**
?*?MessagePack6Types
?*
?*?@author?yhu
?*/
public?class?MessagePack6Types?{
????final?Logger?logger?=?LoggerFactory.getLogger(MessagePack6Types.class);


????/**
?????*?Test?MessagePack6Types
?????*/
????@Test
????public?void?testMessagePack6Types()?{
????????logger.debug("testMessagePack6Types?for?Types");

????????MessagePack?msgpack?=?new?MessagePack();
????????try?{

????????????//
????????????//?Serialization
????????????//
????????????ByteArrayOutputStream?out?=?new?ByteArrayOutputStream();
????????????Packer?packer?=?msgpack.createPacker(out);

????????????//?Serialize?values?of?primitive?types
????????????packer.write(true);?//?boolean?value
????????????packer.write(10);?//?int?value
????????????packer.write(10.5);?//?double?value

????????????//?Serialize?objects?of?primitive?wrapper?types
????????????packer.write(Boolean.TRUE);
????????????packer.write(new?Integer(10));
????????????packer.write(new?Double(10.5));

????????????//?Serialize?various?types?of?arrays
????????????packer.write(new?int[]{1,?2,?3,?4});
????????????packer.write(new?Double[]{10.5,?20.5});
????????????packer.write(new?String[]{"msg",?"pack",?"for",?"java"});
????????????packer.write(new?byte[]{0x30,?0x31,?0x32});?//?byte?array

????????????//?Serialize?various?types?of?other?reference?values
????????????packer.write("MessagePack");?//?String?object
????????????packer.write(ByteBuffer.wrap(new?byte[]{0x30,?0x31,?0x32}));?//?ByteBuffer?object
????????????packer.write(BigInteger.ONE);?//?BigInteger?object

????????????//
????????????//?Deserialization
????????????//
????????????byte[]?bytes?=?out.toByteArray();
????????????ByteArrayInputStream?in?=?new?ByteArrayInputStream(bytes);
????????????Unpacker?unpacker?=?msgpack.createUnpacker(in);

????????????//?to?primitive?values
????????????boolean?b?=?unpacker.readBoolean();?//?boolean?value
????????????int?i?=?unpacker.readInt();?//?int?value
????????????double?d?=?unpacker.readDouble();?//?double?value

????????????//?to?primitive?wrapper?value
????????????Boolean?wb?=?unpacker.read(Boolean.class);
????????????Integer?wi?=?unpacker.read(Integer.class);
????????????Double?wd?=?unpacker.read(Double.class);

????????????//?to?arrays
????????????int[]?ia?=?unpacker.read(int[].class);
????????????Double[]?da?=?unpacker.read(Double[].class);
????????????String[]?sa?=?unpacker.read(String[].class);
????????????byte[]?ba?=?unpacker.read(byte[].class);

????????????//?to?String?object,?ByteBuffer?object,?BigInteger?object,?List?object?and?Map?object
????????????String?ws?=?unpacker.read(String.class);
????????????ByteBuffer?buf?=?unpacker.read(ByteBuffer.class);
????????????BigInteger?bi?=?unpacker.read(BigInteger.class);

????????}?catch?(Exception?ex)?{
????????????logger.error("MessagePack?Serialization?And?Deserialization?error",?ex);
????????}
????}
}

方法?Packer#write()?允許序列化多種類型的數據。

類?Unpacker?針對反序列化二進制數據為主要變量，提供了一個反序列化方法。例如，你希望將二進制數據反序列化為?boolean?(或者?int) 數據類型，你可以使用?Unpacker?中的?readBoolean?(或者?readInt) 方法。

Unpacker?同時也為參考變量提供了一個讀取的方法。這個方法允許為一個參考變量從二進制數據中進行反序列化。參考變量的定義為你將類型指定為一個參數。例如，你希望反序列化二進制數據到?String?(或者?byte[]) 對象，你必須在調用?read(String.class)?(或者?read(byte[].class)) 方法的時候定義描述。

?

https://www.cwiki.us/display/Serialization/QuickStart+For+MessagePack+Java+0.6.X