我們知道 Java 是一個(gè)靜態(tài)類型的語言。通過輸入?Value?MessagePack能夠?qū)崿F(xiàn)動(dòng)態(tài)的特性。

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Value?有方法來檢查自己的類型（isIntegerType(),?isArrayType(), 等...)，同時(shí)也轉(zhuǎn)換為自己的類型 (asStringValue(),?convert(Template)）。

本代碼可以在?https://github.com/cwiki-us-demo/messagepack-6-demo-java/blob/master/src/test/java/com/insight/demo/msgpack/MessagePack6DynamicTyping.java?中查看。

package?com.insight.demo.msgpack;


import?org.junit.Test;
import?org.msgpack.MessagePack;
import?org.msgpack.type.Value;
import?org.msgpack.unpacker.Converter;
import?org.slf4j.Logger;
import?org.slf4j.LoggerFactory;


import?java.util.ArrayList;
import?java.util.List;


import?static?org.msgpack.template.Templates.TString;
import?static?org.msgpack.template.Templates.tList;


/**
?*?MessagePack6Objects
?*
?*?@author?yhu
?*/
public?class?MessagePack6DynamicTyping?{
????final?Logger?logger?=?LoggerFactory.getLogger(MessagePack6DynamicTyping.class);




????/**
?????*?Test?MessagePack6Objects
?????*/
????@Test
????public?void?MessagePack6DynamicTyping()?{
????????logger.debug("MessagePack6Objects?for?Objects");


????????//?Create?serialize?objects.
????????List?src?=?new?ArrayList();
????????src.add("msgpack");
????????src.add("kumofs");
????????src.add("viver");


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


????????????//?Serialize
????????????byte[]?raw?=?msgpack.write(src);


????????????//?Deserialize?directly?using?a?template
????????????List?dst1?=?msgpack.read(raw,?tList(TString));


????????????//?Or,?Deserialze?to?Value?then?convert?type.
????????????Value?dynamic?=?msgpack.read(raw);
????????????List?dst2?=?new?Converter(dynamic).read(tList(TString));


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

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