更新代码和过期的的测试代码，并且提交代码到 GIT 库中
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YuCheng Hu
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@ -55,3 +55,185 @@ $ mvn package
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同时你也需要 https://code.google.com/p/json-simple/ 和 https://github.com/jboss-javassist/javassist 来让 msgpack.jar 可以在项目中使用。否则你将会收到 NoClassDefFoundError 错误。
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== 如何使用
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下面是如何使用的示例代码。
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=== 使用一个消息打包（message-packable）类
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使用注解 '_@Message_' 来让你可以序列化你自己类中对象的 public 字段。
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本代码可以在 https://github.com/cwiki-us-demo/messagepack-6-demo-java/blob/master/src/test/java/com/insight/demo/msgpack/MessagePack6Object.java 中下载到本地后进行编译测试。
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[source,java]
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----
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package com.insight.demo.msgpack;
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import org.junit.Test;
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import org.msgpack.MessagePack;
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import org.msgpack.annotation.Message;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.UUID;
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import static org.junit.Assert.assertEquals;
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/**
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* MessagePack6Objects
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*
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* @author yhu
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*/
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public class MessagePack6Object {
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final Logger logger = LoggerFactory.getLogger(MessagePack6Object.class);
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/**
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* MessageData Message Object
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*/
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@Message // Annotation
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public static class MessageData {
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// public fields are serialized.
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public String uuid;
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public String name;
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public double version;
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}
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/**
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* Test MessagePack6Objects
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*/
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@Test
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public void testMessagePack6Objects() {
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logger.debug("MessagePack6Objects for Objects");
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String uuid = UUID.randomUUID().toString();
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// INIT OBJ
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MessageData src = new MessageData();
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src.uuid = uuid;
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src.name = "MessagePack6";
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src.version = 0.6;
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try {
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MessagePack msgPack = new MessagePack();
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// Serialization
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logger.debug("------ Serialization ------");
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byte[] bytes = msgPack.write(src);
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logger.debug("Bytes Array Length: [{}]", bytes.length);
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// Deserialization
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logger.debug("------ Deserialization ------");
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MessageData dst = msgPack.read(bytes, MessageData.class);
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logger.debug("Check Object for UUID: [{}]", dst.uuid);
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assertEquals(uuid, dst.uuid);
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} catch (Exception ex) {
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logger.error("MessagePack Serialization And Deserialization error", ex);
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}
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}
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}
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----
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如果你希望按照顺序序列化多个对象的话，你可以使用 '_Packer_' 和 '_Unpacker_' 多个对象。
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这是因为 '_MessagePack.write(Object)_' 和 '_read(byte[])_' 实际上每次都调用创建了 '_Packer_' 和 '_Unpacker_' 对象。
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为了使用 '_Packer_' 和 '_Unpacker_' 对象，请调用 '_createPacker(OutputStream)_' 和 '_createUnpacker(InputStream)_'。
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本代码可以 https://github.com/cwiki-us-demo/messagepack-6-demo-java/blob/master/src/test/java/com/insight/demo/msgpack/MessagePack6Objects.java 中查看。
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[source,java]
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----
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package com.insight.demo.msgpack;
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import org.junit.Test;
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import org.msgpack.MessagePack;
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import org.msgpack.annotation.Message;
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import org.msgpack.packer.Packer;
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import org.msgpack.unpacker.Unpacker;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.util.UUID;
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import static org.junit.Assert.assertEquals;
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/**
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* MessagePack6Objects
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*
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* @author yhu
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*/
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public class MessagePack6Objects {
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final Logger logger = LoggerFactory.getLogger(MessagePack6Objects.class);
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/**
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* MessageData Message Objects
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*/
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@Message // Annotation
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public static class MessageData {
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// public fields are serialized.
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public String uuid;
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public String name;
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public double version;
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}
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/**
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* Test MessagePack6Objects
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*/
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@Test
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public void testMessagePack6Objects() {
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logger.debug("MessagePack6Objects for Objects");
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String uuid = UUID.randomUUID().toString();
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// INIT OBJ
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MessageData src1 = new MessageData();
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src1.uuid = uuid;
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src1.name = "MessagePack6-src1";
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src1.version = 0.6;
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MessageData src2 = new MessageData();
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src2.uuid = uuid;
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src2.name = "MessagePack6-src2";
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src2.version = 10.6;
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MessageData src3 = new MessageData();
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src3.uuid = uuid;
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src3.name = "MessagePack6-src3";
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src3.version = 1.6;
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try {
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MessagePack msgPack = new MessagePack();
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// Serialization
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logger.debug("------ Serialization ------");
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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Packer packer = msgPack.createPacker(out);
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packer.write(src1);
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packer.write(src2);
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packer.write(src3);
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byte[] bytes = out.toByteArray();
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logger.debug("Bytes Array Length: [{}]", bytes.length);
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// Deserialization
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logger.debug("------ Deserialization ------");
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ByteArrayInputStream in = new ByteArrayInputStream(bytes);
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Unpacker unpacker = msgPack.createUnpacker(in);
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MessageData dst1 = unpacker.read(MessageData.class);
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MessageData dst2 = unpacker.read(MessageData.class);
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MessageData dst3 = unpacker.read(MessageData.class);
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logger.debug("Check Object for UUID: [{}]", dst1.uuid);
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assertEquals(uuid, dst1.uuid);
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} catch (Exception ex) {
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logger.error("MessagePack Serialization And Deserialization error", ex);
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}
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}
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}
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----
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