1、服务提供端及客户端共享代码
package com.alibaba.dubbo.demo;
public interface DemoService {
String sayHello(String name);
Person get(int id);
}
package com.alibaba.dubbo.demo;
import java.io.Serializable;
public class Person implements Serializable {
private static final long serialVersionUID = -8994496944734041861L;
private int age;
private String name;
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return "Person [age=" + age + ", name=" + name + "]";
}
}
2、客户端代码
package com.alibaba.dubbo.demo;
public interface Nofify {
public void onreturn(Person msg, Integer id);
public void onthrow(Throwable ex, Integer id);
}
import java.util.HashMap;
import java.util.Map;
import com.alibaba.dubbo.demo.Nofify;
import com.alibaba.dubbo.demo.Person;
public class NofifyImpl implements Nofify {
public Map<Integer, Person> ret = new HashMap<Integer, Person>();
public Map<Integer, Throwable> errors = new HashMap<Integer, Throwable>();
public void onreturn(Person msg, Integer id) {
System.out.println("onreturn:" + msg);
ret.put(id, msg);
}
public void onthrow(Throwable ex, Integer id) {
errors.put(id, ex);
}
}
import java.util.Map;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.alibaba.dubbo.demo.DemoService;
import com.alibaba.dubbo.demo.Person;
public class Consumer {
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
new String[] { "classpath:consumer.xml" });
context.start();
// 事件通知 示例
DemoService demoService = (DemoService) context.getBean("demoService");
NofifyImpl notify = (NofifyImpl) context.getBean("demoCallback");
int requestId1 = 1;
Person ret1 = demoService.get(requestId1);
int requestId2 = 2;
Person ret2 = demoService.get(requestId2);
int requestId3 = 3;
Person ret3 = demoService.get(requestId3);
System.out.println("查看返回结果：");
for (Map.Entry<Integer, Person> kv : notify.ret.entrySet()) {
System.out.println(kv.getValue());
}
}
}
3、客户端配置文件
<?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://code.alibabatech.com/schema/dubbo" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> <!-- 消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 --> <dubbo:application name="consumer-of-helloworld-app" /> <!-- 使用zookeeper注册中心暴露发现服务地址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181" /> <!-- 生成远程服务代理 --> <dubbo:reference id="demoService" interface="com.alibaba.dubbo.demo.DemoService" retries="2"> <dubbo:method name="get" onreturn = "demoCallback.onreturn" onthrow="demoCallback.onthrow" /> </dubbo:reference> <!-- 生成远程服务代理 --> <dubbo:reference id="validationService" interface="com.alibaba.dubbo.demo.ValidationService" retries="2" validation="true" /> <!-- 生成远程服务代理 --> <dubbo:reference id="demoService2" interface="com.alibaba.dubbo.demo.DemoService2" async="true" /> <dubbo:reference id="callbackService" interface="com.alibaba.dubbo.demo.CallbackService" /> <bean id ="demoCallback" class = "NofifyImpl" /> </beans>
4、服务提供端代码
package com.alibaba.dubbo.demo.provider;
import com.alibaba.dubbo.demo.DemoService;
import com.alibaba.dubbo.demo.Person;
public class DemoServiceImpl implements DemoService {
@Override
public String sayHello(String name) {
return "Hello " + name + "==2";
}
@Override
public Person get(int id) {
Person persion = new Person();
persion.setAge(id);
persion.setName("hanyiyi011");
return persion;
}
}
5、服务提供端配置文件
<?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://code.alibabatech.com/schema/dubbo" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> <!-- 提供方应用信息，用于计算依赖关系 --> <dubbo:application name="hello-world" /> <!-- 使用zookeeper注册中心暴露发现服务地址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181" /> <!-- 用dubbo协议在20880端口暴露服务 --> <dubbo:protocol name="dubbo" port="20880" /> <!-- 声明需要暴露的服务接口 --> <dubbo:service interface="com.alibaba.dubbo.demo.DemoService" ref="demoService" /> <!-- 和本地bean一样实现服务 --> <bean id="demoService" class="com.alibaba.dubbo.demo.provider.DemoServiceImpl" /> <!-- 声明需要暴露的服务接口 --> <dubbo:service interface="com.alibaba.dubbo.demo.ValidationService" ref="validationService" /> <!-- 和本地bean一样实现服务 --> <bean id="validationService" class="com.alibaba.dubbo.demo.provider.ValidationServiceImpl" /> <bean id="cacheService" class="com.alibaba.dubbo.demo.provider.CacheServiceImpl" /> <dubbo:service interface="com.alibaba.dubbo.demo.CacheService" ref="cacheService" /> <!-- 声明需要暴露的服务接口 --> <dubbo:service interface="com.alibaba.dubbo.demo.DemoService2" ref="demoService2" /> <!-- 和本地bean一样实现服务 --> <bean id="demoService2" class="com.alibaba.dubbo.demo.provider.DemoService2Impl" /> <bean id="callbackService" class="com.alibaba.dubbo.demo.provider.CallbackServiceImpl" /> <dubbo:service interface="com.alibaba.dubbo.demo.CallbackService" ref="callbackService" connections="1" callbacks="1000"> <dubbo:method name="addListener"> <dubbo:argument index="1" callback="true" /> <!--也可以通过指定类型的方式--> <!--<dubbo:argument type="com.alibaba.dubbo.demo.CallbackListener" callback="true" />--> </dubbo:method> </dubbo:service> </beans>
6、客户端控制台输出：
onreturn:Person [age=1, name=hanyiyi011] onreturn:Person [age=2, name=hanyiyi011] onreturn:Person [age=3, name=hanyiyi011] 查看返回结果： Person [age=1, name=hanyiyi011] Person [age=2, name=hanyiyi011] Person [age=3, name=hanyiyi011]
时间： 2024-12-19 12:14:32