Dubbo、Spring、Zookeeper、集成基础案例(注解方式)

朱雀 2024-02-18 23:41 94阅读 0赞

**摘要**：最近抽时间系统的学习了Dubbo的一些内容，趁有时间，整理下，顺便记录下，以防以后回顾。

**一：运行环境**

1>:JDK 1.8

2>:IDEA 2018.1

3>:Zookeeper 3.x

4>:Maven 3.2

5>:Dubbo 2.8.4

**二：项目结构**

**![70][]**

**三：创建服务提供者工程**

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <parent>
            <artifactId>micai-dubbo-chapter2</artifactId>
            <groupId>com.micai.dubbo</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>micai-dubbo-provider</artifactId>
    
        <name>micai-dubbo-provider</name>
        
        <url>http://www.example.com</url>
    
        <properties>
            <spring.version>4.2.1.RELEASE</spring.version>
            <jdk.version>1.8</jdk.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>2.8.4</version>
            </dependency>
            <dependency>
                <groupId>com.101tec</groupId>
                <artifactId>zkclient</artifactId>
                <version>0.3</version>
            </dependency>
        </dependencies>
    
        <build>
            <pluginManagement>
                <plugins>
                    <plugin>
                        <artifactId>maven-clean-plugin</artifactId>
                        <version>3.0.0</version>
                    </plugin>
                    
                    <plugin>
                        <artifactId>maven-resources-plugin</artifactId>
                        <version>3.0.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-compiler-plugin</artifactId>
                        <version>3.7.0</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <version>2.20.1</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-jar-plugin</artifactId>
                        <version>3.0.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-install-plugin</artifactId>
                        <version>2.5.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-deploy-plugin</artifactId>
                        <version>2.8.2</version>
                    </plugin>
                </plugins>
            </pluginManagement>
        </build>
    </project>

DemoService.java

package com.micai.dubbo.provider;
    
    /**
     * @Auther: zhaoxinguo
     * @Date: 2018/9/10 13:33
     * @Description: 定义服务接口
     */
    public interface DemoService {
    
        String sayHello(String name);
    }

DemoServiceImpl.java

package com.micai.dubbo.provider;
    
    import com.alibaba.dubbo.config.annotation.Service;
    
    /**
     * @Auther: zhaoxinguo
     * @Date: 2018/9/10 13:34
     * @Description: 在服务提供方实现接口
     */
    @Service(version = "1.0.0")
    public class DemoServiceImpl implements DemoService {
    
        @Override
        public String sayHello(String name) {
            return "Hello" + name;
        }
    }

Provider.java

package com.micai.dubbo;
    
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import java.io.IOException;
    
    /**
     * @Auther: zhaoxinguo
     * @Date: 2018/9/10 14:13
     * @Description:
     */
    public class Provider {
    
        public static void main(String [] args) {
            ClassPathXmlApplicationContext classPathXmlApplicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
            classPathXmlApplicationContext.start();
            try {
                System.in.read();//按任意键退出
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

applicationContext.xml

**四：创建服务消费者工程**

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <parent>
            <artifactId>micai-dubbo-chapter2</artifactId>
            <groupId>com.micai.dubbo</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>micai-dubbo-consumer</artifactId>
    
        <name>micai-dubbo-consumer</name>
        
        <url>http://www.example.com</url>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <spring.version>4.2.1.RELEASE</spring.version>
            <jdk.version>1.8</jdk.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>2.8.4</version>
            </dependency>
            
            <dependency>
                <groupId>com.101tec</groupId>
                <artifactId>zkclient</artifactId>
                <version>0.3</version>
            </dependency>
            <dependency>
                <groupId>com.micai.dubbo</groupId>
                <artifactId>micai-dubbo-provider</artifactId>
                <version>1.0-SNAPSHOT</version>
            </dependency>
        </dependencies>
    
        <build>
            <pluginManagement>
                <plugins>
                    <plugin>
                        <artifactId>maven-clean-plugin</artifactId>
                        <version>3.0.0</version>
                    </plugin>
                    
                    <plugin>
                        <artifactId>maven-resources-plugin</artifactId>
                        <version>3.0.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-compiler-plugin</artifactId>
                        <version>3.7.0</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <version>2.20.1</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-jar-plugin</artifactId>
                        <version>3.0.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-install-plugin</artifactId>
                        <version>2.5.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-deploy-plugin</artifactId>
                        <version>2.8.2</version>
                    </plugin>
                </plugins>
            </pluginManagement>
        </build>
    </project>

DemoAction.java

package com.micai.dubbo.consumer;
    
    import com.alibaba.dubbo.config.annotation.Reference;
    import com.micai.dubbo.provider.DemoService;
    import org.springframework.stereotype.Component;
    
    /**
     * @Auther: zhaoxinguo
     * @Date: 2018/9/11 15:35
     * @Description:
     */
    @Component
    public class DemoAction {
    
        // 服务版本号，关闭启动时检查，失败重试次数2次，负载均衡策略轮询，缓存类型
        @Reference(version = "1.0.0")
        private DemoService demoService;
    
        public String sayHello() {
            return demoService.sayHello("李思慧");
        }
    
    }

Consumer.java

package com.micai.dubbo;
    
    import com.micai.dubbo.consumer.DemoAction;
    import com.micai.dubbo.consumer.UserAction;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    /**
     * @Auther: zhaoxinguo
     * @Date: 2018/9/11 14:36
     * @Description:
     */
    public class Consumer {
    
        public static void main(String [] args) {
            ClassPathXmlApplicationContext classPathXmlApplicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
            classPathXmlApplicationContext.start();
            DemoAction demoAction = (DemoAction) classPathXmlApplicationContext.getBean("demoAction");
            String str = demoAction.sayHello();
            System.out.println("调用结果" + str);
    
            /*UserAction userAction = (UserAction) classPathXmlApplicationContext.getBean("userAction");
            userAction.getUserName();
            System.out.println("异步调用结束");*/
    
            /*CallBackService callBackService = classPathXmlApplicationContext.getBean("callBackService", CallBackService.class);
            callBackService.addListener("zhaoxinguo", new CallBackListener() {
                @Override
                public void changed(String msg) {
                    System.out.println("callback:" + msg);
                }
            });
            System.out.println("参数回调");*/
        }
    }

applicationContext.xml

**五：运行结果**

**![70 1][]**

**六：源码下载请扫描下面的QQ交流群获取**

**![70 2][]**

[70]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/0c4c476e242144709b3d677c3b337ac8.png
[70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/fadbeff9fd7b45ccb00561283f859743.png
[70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/9e54e122227540588968882c061a65a6.png