一、Dubbo+SpringBoot+zookeerper整合（XML方式）

Git位址:https://github.com/boorZ/demo-dubbo-xml

注意：Git位址上的項目與本文章有差同，請參照文章與Git。

項目結構（這是個父子項目）

還是解析下：

• demo-dubbo-xml是父項目
• dubbo-service 是Service接口（如果您們要問：為什麼我要把Service接口與Service實作類分開。對不起，個人喜好）
• dubbo-provider 是服務提供者
• dubbo-consumer 是服務消費者

父項目(demo-dubbo-xml)沒有什麼需要配置的。預設就好。

dubbo-service所需更改：

Demo1Service	public interface DemoOne2Service { String test(); }
Demo2Service	public interface DemoOne2Service { String test(); }

dubbo-provider所需更改：

pom.xml	<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- dubbo 和 zookeeper 依賴--> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.6</version> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.9</version> </dependency> <dependency> <groupId>com.101tec</groupId> <artifactId>zkclient</artifactId> <version>0.2</version> </dependency> <!-- 這是我的Service包 --> <dependency> <groupId>com.example</groupId> <artifactId>dubbo-service</artifactId> <version>0.0.1-SNAPSHOT</version> <scope>compile</scope> </dependency>
Demo1ServiceImpl	public class DemoOne1ServiceImpl implements DemoOne1Service { public String test() { return "One-A"; } }
Demo2ServiceImpl	public class DemoOne2ServiceImpl implements DemoOne2Service { public String test() { return "One-B"; } }
dubbo-provider.xml	<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/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-2.5.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> <!-- 提供方應用資訊，用于計算依賴關系 --> <dubbo:application name="dubbo-provider"/> <!-- 使用multicast廣播注冊中心暴露服務位址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181"/> <!-- 用dubbo協定在20880端口暴露服務 --> <dubbo:protocol name="dubbo" port="20880"/> <!-- 暴露服務 --> <bean id="demoOne1ServiceImpl" class="com.example.dubboprovider.impl.DemoOne1ServiceImpl"/> <dubbo:service inter ref="demoOne1ServiceImpl"/> <bean id="demoOne2ServiceImpl" class="com.example.dubboprovider.impl.DemoOne2ServiceImpl"/> <dubbo:service inter ref="demoOne2ServiceImpl"/> </beans>
application.properties	server.port=9000
Application	就是SpringBoot的啟動類 添加注解讓SpringBoot啟動時讀取Dubbo配置檔案 @ImportResource(value = {"classpath:dubbo-provider.xml"})

dubbo-consumer所需更改：

pom.xml	<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- dubbo 和 zookeeper 依賴--> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.6</version> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.9</version> </dependency> <dependency> <groupId>com.101tec</groupId> <artifactId>zkclient</artifactId> <version>0.2</version> </dependency> <!-- 這是我的Service包 --> <dependency> <groupId>com.example</groupId> <artifactId>dubbo-provider</artifactId> <version>0.0.1-SNAPSHOT</version> <scope>compile</scope> </dependency>
HelloController	@RestController public class HelloController { @Autowired private DemoOne1Service one1Service; @Autowired private DemoOne2Service one2Service; @GetMapping(value = "/hello1") public String hello1() { return one1Service.test(); } @GetMapping(value = "/hello2") public String hello2() { return one2Service.test(); } }
dubbo-provider.xml	<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/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-2.5.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> <!-- 消費方應用名，用于計算依賴關系，不是比對條件，不要與提供方一樣 --> <dubbo:application name="demo-consumer"/> <!-- 使用multicast廣播注冊中心暴露發現服務位址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181"/> <!-- 要掃描的包路徑　使用注解方式建立服務 --> <dubbo:annotation package="com.example.dubboconsumer" /> <!-- 服務消費者引用服務配置 id：服務引用BeanId（必填） interface：服務接口名（必填） version：服務版本，與服務提供者的版本一緻 check：啟動時檢查提供者是否存在，true報錯，false忽略 url：點對點直連服務提供者位址，将繞過注冊中心（就是經常說的：直連） 詳細請看：http://dubbo.apache.org/zh-cn/docs/user/references/xml/dubbo-reference.html --> <dubbo:reference id="DemoOne1Service" inter/> <dubbo:reference id="DemoOne2Service" inter/> </beans>
application.properties	server.port=9091
Application	就是SpringBoot的啟動類 添加注解讓SpringBoot啟動時讀取Dubbo配置檔案 @ImportResource("classpath:dubbo-consumer.xml")