Dubbo Multiple Protocol Example

This example shows how the multiple protocols on one port works in Dubbo. We will

1. Start one provider which supports dubbo and tri protocol at the same time on one port.
2. Start two consumers that consumes dubbo and tri protocol respectively.

How to run

Start Nacos

This example replies on Nacos as service discovery registry center, so you need to run the Nacos server first, there are two ways to do so:

1. Download Nacos binary and start it directly
2. Start Nacos using docker

Install dependencies

Enter ‘dubbo-samples-multiple-protocols’ directory, run the following command:

$ mvn clean install

Start provider

Enter provider directory:

$ cd dubbo-samples-multiple-protocols-provider

then, run the following command to start provider:

$ mvn compile exec:java -Dexec.mainClass="org.apache.dubbo.protocol.multiple.demo.provider.ProviderApplication"

Run the following command to see server works as expected:

curl \
    --header "Content-Type: application/json" \
    --data '["Dubbo"]' \
    http://localhost:20880/org.apache.dubbo.protocol.multiple.demo.DemoService/sayHello

Start dubbo consumer

Enter dubbo consumer directory:

$ cd dubbo-samples-multiple-protocols-dubbo-consumer

then, run the following command to start consumer:

$ mvn compile exec:java -Dexec.mainClass="org.apache.dubbo.protocol.multiple.demo.consumer.DubboConsumerApplication"

Start triple consumer

Enter triple consumer directory:

$ cd dubbo-samples-multiple-protocols-triple-consumer

then, run the following command to start consumer:

$ mvn compile exec:java -Dexec.mainClass="org.apache.dubbo.protocol.multiple.demo.consumer.TripleConsumerApplication"