序列化战争：主流序列化框架Benchmark

GitHub上有这样一个关于序列化的Benchmark，被好多文章引用。但这个项目考虑到完整性，代码有些复杂。为了个人学习，自己实现了个简单的Benchmark测试类，也算是总结一下当今主流序列化框架的用法。

1.序列化的战争

按照序列化后的数据格式，主流的序列化框架主要可以分为四大类：JSON、二进制、XML、RPC。从更高层次来说，JSON和XML都可以算作是文本类的，而RPC类因为不只是序列化，框架往往还提供了底层RPC以及跨语言代码生成等基础设施，所以单列作一类。具体说来，本次测试涵盖了以下这些：

• JSON类
  
  • 非常流行的Jackson
  • Google的Gson
  • 类JSON的MessagePack
  • 阿里的FastJSON
• 二进制类
  
  • 老牌劲旅Hessian(以前很喜欢用的)
  • 功能全面而强大的FST
  • 后起之秀Kryo
• XML类
  
  • StAX(Streaming API for XML)
  • Thoughwork的XStream
• RPC类
  
  • Protobuf：这里“偷了点懒”，因为Protobuf和Thrift都要安装、编译，所以这里使用了Protostuff，可以在运行时自动获取对象的Schema信息，省去了额外安装和手动编写协议格式文件的过程(Protostuff真是太好了！)。
  • Thrift、Apache Avro：同上，都需要预编译。

Why does Jackson-JSON call BSON the “smile format” of JSON?
BSON and Smile are two distinct binary formats. They are related in that they are both based on the logical format of JSON (i.e., key-value objects) but they are distinct in that they write incompatible binary formats (you can neither directly read Smile as BSON nor vice-versa). They also have different incompatible features (e.g., BSON defines a date type, while Smile does not as far as I can tell.) BSON is the binary serialization used by MongoDB for network transfer and disk serialization. Smile is the binary JSON format used by the Jackson project.

        <!-- JSON BEGIN -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.5.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-afterburner</artifactId>
            <version>2.5.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-scala_2.10</artifactId>
            <version>2.5.3</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.3.1</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.6</version>
        </dependency>
        <dependency>
            <groupId>io.fastjson</groupId>
            <artifactId>boon</artifactId>
            <version>0.33</version>
        </dependency>
        <!-- JSON END -->

        <!-- JSON-like BEGIN -->
        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-smile</artifactId>
            <version>2.5.4</version>
        </dependency>
        <dependency>
            <groupId>org.msgpack</groupId>
            <artifactId>msgpack</artifactId>
            <version>0.6.12</version>
        </dependency>
        <dependency>
            <groupId>org.mongodb</groupId>
            <artifactId>bson</artifactId>
            <version>3.0.2</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-yaml</artifactId>
            <version>2.5.4</version>
        </dependency>
        <!-- JSON-like END -->

        <!-- Binary BEGIN -->
        <dependency>
            <groupId>com.caucho</groupId>
            <artifactId>hessian</artifactId>
            <version>4.0.38</version>
        </dependency>
        <dependency>
            <groupId>de.ruedigermoeller</groupId>
            <artifactId>fst</artifactId>