dubbo入门实例

朱雀 2022-01-16 15:11 244阅读 0赞

spring 4.3.20.RELEASE

dubbo 2.6.2

curator-framework 2.12.0

注册中心 zookeeper

jdk 1.8

一、服务提供方

1、pom.xml配置

<dependencies>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>
          <version>4.3.20.RELEASE</version>
          </dependency>
          
          <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.6.2</version>
        </dependency>
        
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>2.12.0</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-nop</artifactId>
            <version>1.7.20</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
      
    <build>
      <plugins>
          <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                <source>1.8</source>
                <target>1.8</target>
                </configuration>
          </plugin>
      </plugins>
    </build>

2、接口

public interface HelloService {
        String sayHello(String name);
    }

3、接口实现类

public class HelloServiceImpl implements HelloService {
        public String sayHello(String name) {
            return "Hello " + name;
        }
    }

4、spring配置文件

<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"
        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">
        
            <dubbo:application name="dubbo-provider"></dubbo:application>
            <dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry>
            <dubbo:protocol host="127.0.0.1" port="20880"></dubbo:protocol>
            <dubbo:service interface="com.kingtry.service.HelloService" ref="helloService"></dubbo:service>
          <bean id="helloService" class="com.kingtry.service.HelloServiceImpl"></bean>
    </beans>

5、log4j配置文件

log4j.rootLogger=INFO,console
    log4j.appender.console=org.apache.log4j.ConsoleAppender
    log4j.appender.console.layout=org.apache.log4j.PatternLayout
    log4j.appender.console.layout.ConversionPattern=%-d{yyyy-MM-dd\u00A0HH:mm:ss,SSS}\u00A0[%t]\u00A0[%c]-[%p]\u00A0%m%n

6、注册，并提供服务的测试类

public class DubboProviderTest {
        @Test
        public void test() {
            ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
            
            //使服务不中断
            try {
                System.in.read();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

二、服务调用方

1、pom.xml文件

<dependencies>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>
          <version>4.3.0.RELEASE</version>
          </dependency>
          <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.6.2</version>
        </dependency>
        
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>2.12.0</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-nop</artifactId>
            <version>1.7.20</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
      
    <build>
      <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.0</version>
            <configuration>
            <source>1.8</source>
            <target>1.8</target>
            </configuration>
          </plugin>
      </plugins>
    </build>

2、 接口

//此处接口与提供方完全一致

public interface HelloService { 
        String sayHello(String name);
    }

3、spring配置文件

<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"
        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">
        
            <dubbo:application name="dubbo-consumber"></dubbo:application>
            <dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry>
            <dubbo:reference id="helloService" interface="com.kingtry.service.HelloService"></dubbo:reference>
    </beans>

4、log4j配置文件

5、调用服务的测试类

public class DubboConsumerTest {
        @Test
        public void test() {
            ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
            
            HelloService helloService = (HelloService)context.getBean("helloService");
            
            System.out.println("----------------------------------------------------------");
            System.out.println(helloService.sayHello("DanDan"));
            System.out.println("----------------------------------------------------------");
            
        }
    }

三、输出如下结果

----------------------------------------------------------
    Hello DanDan
    ----------------------------------------------------------

转载于:https://blog.51cto.com/10759919/2406415