Documentation

Multiple protocols

Dubbo allows you to configure multiple protocols, support different protocols on different services, or support multiple protocols on the same service.

Every service export to one specific protocol separately

Different protocol performance is not the same. Such as big data should use short connection protocol, small data and concurrent should use long connection protocol.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">
    <dubbo:application name="world"  />
    <dubbo:registry id="registry" address="10.20.141.150:9090" username="admin" password="hello1234" />
    <!-- multiple protocols -->
    <dubbo:protocol name="dubbo" port="20880" />
    <dubbo:protocol name="rmi" port="1099" />
    <!-- Use dubbo protocol to expose the service -->
    <dubbo:service interface="com.alibaba.hello.api.HelloService" version="1.0.0" ref="helloService" protocol="dubbo" />
    <!-- Use rmi protocol to expose services -->
    <dubbo:service interface="com.alibaba.hello.api.DemoService" version="1.0.0" ref="demoService" protocol="rmi" />
</beans>

One service export to several protocols

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">
    <dubbo:application name="world"  />
    <dubbo:registry id="registry" address="10.20.141.150:9090" username="admin" password="hello1234" />
    <!-- multiple protocols-->
    <dubbo:protocol name="dubbo" port="20880" />
    <dubbo:protocol name="hessian" port="8080" />
    <!-- Service exposes multiple protocols -->
    <dubbo:service id="helloService" interface="com.alibaba.hello.api.HelloService" version="1.0.0" protocol="dubbo,hessian" />
</beans>