dubbo-gzip跟老的dubbo传输协议不兼容，提供了gzip压缩传输数据，其他跟dubbo一样 http://dubbo.io/Home-zh.htm
Export remote service:
<bean id="barService" class="com.foo.BarServiceImpl" />
<dubbo:service interface="com.foo.BarService" ref="barService" gzip="true" gziplen="1024"/>
Refer remote service:
<dubbo:reference id="barService" interface="com.foo.BarService" gzip="true" gziplen="1024"/>
<bean id="barAction" class="com.foo.BarAction">
<property name="barService" ref="barService" />
</bean>
更多详细请参考源码中的demo