尚硅谷 Dubbo 雷丰阳讲义

boot-order-service-consumer

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@Controller
public class OrderController {
	
	@Autowired
	OrderService orderService;
	
	@ResponseBody
	@RequestMapping("/initOrder")
	public List<UserAddress> initOrder(@RequestParam("uid")String userId) {
		return orderService.initOrder(userId);
	}

}
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@EnableDubbo
@EnableHystrix
@SpringBootApplication
public class BootOrderServiceConsumerApplication {

	public static void main(String[] args) {
		SpringApplication.run(BootOrderServiceConsumerApplication.class, args);
	}
}
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/**
 * 1、将服务提供者注册到注册中心（暴露服务）
 * 		1）、导入dubbo依赖（2.6.2）\操作zookeeper的客户端(curator)
 * 		2）、配置服务提供者
 * 
 * 2、让服务消费者去注册中心订阅服务提供者的服务地址
 * @author lfy
 *
 */
@Service
public class OrderServiceImpl implements OrderService {

	//@Autowired
	@Reference(loadbalance="random",timeout=1000) //dubbo直连
	UserService userService;
	
	@HystrixCommand(fallbackMethod="hello")
	@Override
	public List<UserAddress> initOrder(String userId) {
		// TODO Auto-generated method stub
		System.out.println("用户id："+userId);
		//1、查询用户的收货地址
		List<UserAddress> addressList = userService.getUserAddressList(userId);
		return addressList;
	}
	
	
	public List<UserAddress> hello(String userId) {
		// TODO Auto-generated method stub
	
		return Arrays.asList(new UserAddress(10, "测试地址", "1", "测试", "测试", "Y"));
	}
	

}
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server.port=8081

dubbo.application.name=boot-order-service-consumer
dubbo.registry.address=zookeeper://127.0.0.1:2181
dubbo.monitor.protocol=registry

boot-user-service-provider

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@Configuration
public class MyDubboConfig {
	
	@Bean
	public ApplicationConfig applicationConfig() {
		ApplicationConfig applicationConfig = new ApplicationConfig();
		applicationConfig.setName("boot-user-service-provider");
		return applicationConfig;
	}
	
	//<dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry>
	@Bean
	public RegistryConfig registryConfig() {
		RegistryConfig registryConfig = new RegistryConfig();
		registryConfig.setProtocol("zookeeper");
		registryConfig.setAddress("127.0.0.1:2181");
		return registryConfig;
	}
	
	//<dubbo:protocol name="dubbo" port="20882"></dubbo:protocol>
	@Bean
	public ProtocolConfig protocolConfig() {
		ProtocolConfig protocolConfig = new ProtocolConfig();
		protocolConfig.setName("dubbo");
		protocolConfig.setPort(20882);
		return protocolConfig;
	}
	
	/**
	 *<dubbo:service interface="com.atguigu.gmall.service.UserService" 
		ref="userServiceImpl01" timeout="1000" version="1.0.0">
		<dubbo:method name="getUserAddressList" timeout="1000"></dubbo:method>
	</dubbo:service>
	 */
	@Bean
	public ServiceConfig<UserService> userServiceConfig(UserService userService){
		ServiceConfig<UserService> serviceConfig = new ServiceConfig<>();
		serviceConfig.setInterface(UserService.class);
		serviceConfig.setRef(userService);
		serviceConfig.setVersion("1.0.0");
		
		//配置每一个method的信息
		MethodConfig methodConfig = new MethodConfig();
		methodConfig.setName("getUserAddressList");
		methodConfig.setTimeout(1000);
		
		//将method的设置关联到service配置中
		List<MethodConfig> methods = new ArrayList<>();
		methods.add(methodConfig);
		serviceConfig.setMethods(methods);
		
		//ProviderConfig
		//MonitorConfig
		
		return serviceConfig;
	}

}
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/**
 * 1、导入依赖；
 * 		1）、导入dubbo-starter
 * 		2）、导入dubbo的其他依赖
 * @author lfy
 *
 * SpringBoot与dubbo整合的三种方式：
 * 1）、导入dubbo-starter，在application.properties配置属性，使用@Service【暴露服务】使用@Reference【引用服务】
 * 2）、保留dubbo xml配置文件;
 * 		导入dubbo-starter，使用@ImportResource导入dubbo的配置文件即可
 * 3）、使用注解API的方式：
 * 		将每一个组件手动创建到容器中,让dubbo来扫描其他的组件
 */
//@EnableDubbo //开启基于注解的dubbo功能
//@ImportResource(locations="classpath:provider.xml")
@EnableDubbo(scanBasePackages="com.atguigu.gmall")
@EnableHystrix //开启服务容错
@SpringBootApplication
public class BootUserServiceProviderApplication {

	public static void main(String[] args) {
		SpringApplication.run(BootUserServiceProviderApplication.class, args);
	}
}
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@Service//暴露服务 
@Component
public class UserServiceImpl implements UserService {

	@HystrixCommand
	@Override
	public List<UserAddress> getUserAddressList(String userId) {
		// TODO Auto-generated method stub
		System.out.println("UserServiceImpl..3.....");
		UserAddress address1 = new UserAddress(1, "北京市昌平区宏福科技园综合楼3层", "1", "李老师", "010-56253825", "Y");
		UserAddress address2 = new UserAddress(2, "深圳市宝安区西部硅谷大厦B座3层（深圳分校）", "1", "王老师", "010-56253825", "N");
//		try {
//			Thread.sleep(2000);
//		} catch (InterruptedException e) {
//			e.printStackTrace();
//		}
		if(Math.random()>0.5) {
			throw new RuntimeException();
		}
		return Arrays.asList(address1,address2);
	}

}
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#dubbo.application.name=user-service-provider
#dubbo.registry.address=127.0.0.1:2181
#dubbo.registry.protocol=zookeeper
#dubbo.protocol.name=dubbo
##dubbo.protocol.port=20881
#dubbo.monitor.protocol=registry
##dubbo.scan.base-packages=com.atguigu.gmall
1
dubbo.protocol.port=20882
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<?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://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd
		http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

	<!-- 1、指定当前服务/应用的名字（同样的服务名字相同，不要和别的服务同名） -->
	<dubbo:application name="boot-user-service-provider"></dubbo:application>
	
	<!-- 2、指定注册中心的位置 -->
	<!-- <dubbo:registry address="zookeeper://127.0.0.1:2181"></dubbo:registry> -->
	<dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry>
	
	<!-- 3、指定通信规则（通信协议？通信端口） -->
	<dubbo:protocol name="dubbo" port="20882"></dubbo:protocol>
	
	<!-- 4、暴露服务   ref：指向服务的真正的实现对象 -->
	<dubbo:service interface="com.atguigu.gmall.service.UserService" 
		ref="userServiceImpl01" timeout="1000" version="1.0.0">
		<dubbo:method name="getUserAddressList" timeout="1000"></dubbo:method>
	</dubbo:service>
	
	<!--统一设置服务提供方的规则  -->
	<dubbo:provider timeout="1000"></dubbo:provider>
	
	
	<!-- 服务的实现 -->
	<bean id="userServiceImpl01" class="com.atguigu.gmall.service.impl.UserServiceImpl"></bean>
	
	
	<!-- 连接监控中心 -->
	<dubbo:monitor protocol="registry"></dubbo:monitor>
	
</beans>

gmall-interface

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public class UserAddress implements Serializable {
	
	private Integer id;
    private String userAddress; //用户地址
    private String userId; //用户id
    private String consignee; //收货人
    private String phoneNum; //电话号码
    private String isDefault; //是否为默认地址    Y-是     N-否
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public interface OrderService {
	
	/**
	 * 初始化订单
	 * @param userId
	 */
	public List<UserAddress> initOrder(String userId);

}
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 /**
 * 用户服务
 */
public interface UserService {
	
	/**
	 * 按照用户id返回所有的收货地址
	 * @param userId
	 * @return
	 */
	public List<UserAddress> getUserAddressList(String userId);

}

order-service-consumer

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public class MainApplication {
	
	@SuppressWarnings("resource")
	public static void main(String[] args) throws IOException {
		ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("consumer.xml");
		
		OrderService orderService = applicationContext.getBean(OrderService.class);
		
		orderService.initOrder("1");
		System.out.println("调用完成....");
		System.in.read();
	}

}
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/**
 * 1、将服务提供者注册到注册中心（暴露服务）
 * 		1）、导入dubbo依赖（2.6.2）\操作zookeeper的客户端(curator)
 * 		2）、配置服务提供者
 * 
 * 2、让服务消费者去注册中心订阅服务提供者的服务地址
 * @author lfy
 *
 */
@Service
public class OrderServiceImpl implements OrderService {

	@Autowired
	UserService userService;
	@Override
	public List<UserAddress> initOrder(String userId) {
		// TODO Auto-generated method stub
		System.out.println("用户id："+userId);
		//1、查询用户的收货地址
		List<UserAddress> addressList = userService.getUserAddressList(userId);
		for (UserAddress userAddress : addressList) {
			System.out.println(userAddress.getUserAddress());
		}
		return addressList;
	}
 
}
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<?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"
	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://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
		http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
	<context:component-scan base-package="com.atguigu.gmall.service.impl"></context:component-scan>


	<dubbo:application name="order-service-consumer"></dubbo:application>
	
	<dubbo:registry address="zookeeper://127.0.0.1:2181"></dubbo:registry>
	
	<!--  配置本地存根-->
	
	<!--声明需要调用的远程服务的接口；生成远程服务代理  -->
	<!-- 
		1）、精确优先 (方法级优先，接口级次之，全局配置再次之)
		2）、消费者设置优先(如果级别一样，则消费方优先，提供方次之)
	-->
	<!-- timeout="0" 默认是1000ms-->
	<!-- retries="":重试次数，不包含第一次调用，0代表不重试-->
	<!-- 幂等（设置重试次数）【查询、删除、修改】、非幂等（不能设置重试次数）【新增】 -->
	<dubbo:reference interface="com.atguigu.gmall.service.UserService" 
		id="userService" timeout="5000" retries="3" version="*">
		<!-- <dubbo:method name="getUserAddressList" timeout="1000"></dubbo:method> -->
	</dubbo:reference>
		
	<!-- 配置当前消费者的统一规则：所有的服务都不检查 -->
	<dubbo:consumer check="false" timeout="5000"></dubbo:consumer>

	<dubbo:monitor protocol="registry"></dubbo:monitor>
	<!-- <dubbo:monitor address="127.0.0.1:7070"></dubbo:monitor> -->
	
</beans>

user-service-provider

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public class UserServiceImpl implements UserService {

	@Override
	public List<UserAddress> getUserAddressList(String userId) {
		System.out.println("UserServiceImpl.....old...");
		// TODO Auto-generated method stub
		UserAddress address1 = new UserAddress(1, "北京市昌平区宏福科技园综合楼3层", "1", "李老师", "010-56253825", "Y");
		UserAddress address2 = new UserAddress(2, "深圳市宝安区西部硅谷大厦B座3层（深圳分校）", "1", "王老师", "010-56253825", "N");
		/*try {
			Thread.sleep(4000);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}*/
		return Arrays.asList(address1,address2);
	}

}
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public class UserServiceImpl2 implements UserService {

	@Override
	public List<UserAddress> getUserAddressList(String userId) {
		System.out.println("UserServiceImpl.....new...");
		// TODO Auto-generated method stub
		UserAddress address1 = new UserAddress(1, "北京市昌平区宏福科技园综合楼3层", "1", "李老师", "010-56253825", "Y");
		UserAddress address2 = new UserAddress(2, "深圳市宝安区西部硅谷大厦B座3层（深圳分校）", "1", "王老师", "010-56253825", "N");
		
		return Arrays.asList(address1,address2);
	}

}
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public class UserServiceStub implements UserService {
	private final UserService userService{
	/*
	 * 传入的是userService远程的代理对象
	 * @param userService
	 */
	public UserServiceStub(UserService userService) {
		super();
		this.userService = userService;
	}


	@Override
	public List<UserAddress> getUserAddressList(String userId) {
		// TODO Auto-generated method stub
		System.out.println("UserServiceStub.....");
		if(!StringUtils.isEmpty(userId)) {
			return userService.getUserAddressList(userId);
		}
		return null;
	}

}
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public class MainApplication {
	
	public static void main(String[] args) throws IOException {
		ClassPathXmlApplicationContext ioc = new ClassPathXmlApplicationContext("provider.xml");
		ioc.start();
		
		System.in.read();
	}

}
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<?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://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd
		http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

	<!-- 1、指定当前服务/应用的名字（同样的服务名字相同，不要和别的服务同名） -->
	<dubbo:application name="user-service-provider"></dubbo:application>
	
	<!-- 2、指定注册中心的位置 -->
	<!-- <dubbo:registry address="zookeeper://127.0.0.1:2181"></dubbo:registry> -->
	<dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry>
	
	<!-- 3、指定通信规则（通信协议？通信端口） -->
	<dubbo:protocol name="dubbo" port="20882"></dubbo:protocol>
	
	<!-- 4、暴露服务   ref：指向服务的真正的实现对象 -->
	<dubbo:service interface="com.atguigu.gmall.service.UserService" 
		ref="userServiceImpl01" timeout="1000" version="1.0.0">
		<dubbo:method name="getUserAddressList" timeout="1000"></dubbo:method>
	</dubbo:service>
	
	<!--统一设置服务提供方的规则  -->
	<dubbo:provider timeout="1000"></dubbo:provider>
	
	
	<!-- 服务的实现 -->
	<bean id="userServiceImpl01" class="com.atguigu.gmall.service.impl.UserServiceImpl"></bean>
	
	
	<dubbo:service interface="com.atguigu.gmall.service.UserService" 
		ref="userServiceImpl02" timeout="1000" version="2.0.0">
		<dubbo:method name="getUserAddressList" timeout="1000"></dubbo:method>
	</dubbo:service>
	<bean id="userServiceImpl02" class="com.atguigu.gmall.service.impl.UserServiceImpl2"></bean>
	
	<!-- 连接监控中心 -->
	<dubbo:monitor protocol="registry"></dubbo:monitor>
	
</beans>