Dubbo has custom configuration components based on Spring Schema extensions, and the configuration capabilities that can be achieved using XML are generally equivalent to Configuration Reference Manual.
For complete examples of the following content, please refer to dubbo-samples
DemoService.java:
package org.apache.dubbo.demo;
public interface DemoService {
String sayHello(String name);
}
DemoServiceImpl.java:
package org.apache.dubbo.demo.provider;
import org.apache.dubbo.demo.DemoService;
public class DemoServiceImpl implements DemoService {
public String sayHello(String name) {
return "Hello " + name;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework .org/schema/context/spring-context.xsd">
<context:property-placeholder/>
<dubbo:application name="demo-provider"/>
<dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
<dubbo:provider token="true"/>
<bean id="demoService" class="org.apache.dubbo.samples.basic.impl.DemoServiceImpl"/>
<dubbo:service interface="org.apache.dubbo.samples.basic.api.DemoService" ref="demoService"/>
</beans>
public class DemoServiceImpl implements DemoService {
@Override
public String sayHello(String name) {
System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " + name +
", request from consumer: " + RpcContext. getContext(). getRemoteAddress());
return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
}
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework .org/schema/context/spring-context.xsd">
<context:property-placeholder/>
<dubbo:application name="demo-consumer"/>
<dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
<dubbo:reference id="demoService" check="true" interface="org.apache.dubbo.samples.basic.api.DemoService"/>
</beans>
public class BasicConsumer {
public static void main(String[] args) {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-consumer.xml");
context. start();
DemoService demoService = (DemoService) context. getBean("demoService");
String hello = demoService.sayHello("world");
System.out.println(hello);
}
}