Dubbo:服务提供者、消费者相关配置
1.架构
2.提供者配置
<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" 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"> <!--指定当前服务的名字,不要与别的服务同名--> <dubbo:application name="dubbo-server-provider"/> <!--指定注册中心位置--> <dubbo:registry address="zookeeper://192.168.10.132:2181"/> <!--指定通信规则(协议/端口)--> <dubbo:protocol name="dubbo" port="10000"/> <!--暴露服务 ref:指向服务真正的实现对象--> <dubbo:service interface="com.wj.UserService" ref="userServiceImpl"/> <!--服务实现--> <bean id="userServiceImpl" class="com.wj.service.impl.UserServiceImpl"/> </beans>
service实现:
注意实体类需要实现Serializable接口,否则会报错,因为远程调用过程有序列化和反序列化过程。
public class UserServiceImpl implements UserService { @Override public List<User> getAll() { User user1 = new User(1, "张三", 12, "北京"); User user2 = new User(2, "李四", 13, "北京"); return Arrays.asList(user1, user2); } }
Main方法:
public class ProviderMain { public static void main(String[] args) throws IOException { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); context.start(); System.in.read(); } }
3.消费方配置
<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-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"> <!--消费者服务名--> <dubbo:application name="dubbo-server-consumer"/> <!--注册中心地址--> <dubbo:registry address="zookeeper://192.168.10.132:2181"/> <!--声明需要远程调用的远程服务接口,生成远程服务代理--> <dubbo:reference interface="com.wj.UserService" id="userServiceImpl"/> <context:component-scan base-package="com.wj"/> </beans>
消费者类:
@Controller public class UserController { @Autowired UserService userService; public List<User> getAll(){ return userService.getAll(); } }
Main方法:
public class ConsumerMain { public static void main(String[] args) throws IOException { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); UserController bean = context.getBean(UserController.class); List<User> users = bean.getAll(); for (User user : users) { System.out.println(user); } System.in.read(); } }
4.分别运行两个main方法
消费方打印结果:
dubbo admin上服务调用关系: