dubbo复习：（19）dubbo 和spring整合（老古董）

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wx62e0d796b5814 2024-06-13 10:37:53 ©著作权

文章标签 dubbo spring debian apache xml 文章分类 Html/CSS 前端开发

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一、服务端依赖

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>dubboxml1</artifactId>
    <version>1.0-SNAPSHOT</version>

    <build>
        <plugins>
            <plugin>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <groupId>org.springframework.boot</groupId>
            </plugin>
        </plugins>
    </build>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <dubbo.version>3.1.8</dubbo.version>
        <spring-boot.version>2.7.10</spring-boot.version>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.10</version>
    </parent>
    <dependencies>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.7.10</version>
        </dependency>


        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
            <version>${dubbo.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-dependencies-zookeeper</artifactId>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-zookeeper</artifactId>
        </dependency>





        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-apache-dubbo-adapter</artifactId>
            <version>1.8.7</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-transport-simple-http</artifactId>
            <version>1.8.7</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>


        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-metrics-api</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.skywalking</groupId>
            <artifactId>apm-toolkit-micrometer-1.10</artifactId>
            <version>8.14.0</version>
        </dependency>



    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-bom</artifactId>
                <version>${dubbo.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-dependencies-zookeeper</artifactId>
                <version>${dubbo.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>2021.0.1</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2021.0.1.0</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

        </dependencies>
    </dependencyManagement>

</project>

二、服务端接口定义和实现

package cn.edu.tju.service;

public interface GreetingsService {

    String sayHi(String name);
}

package cn.edu.tju.service;


public class GreetingsServiceImpl implements GreetingsService {
    @Override
    public String sayHi(String name) {
        return "hi, " + name;
    }
}

三、服务端配置文件(resources目录下dubbo-demo-provider.xml）

<?xml version="1.0" encoding="UTF-8"?>
<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.xsd
       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <context:property-placeholder/>

    <!-- 定义应用名 -->
    <dubbo:application name="demo-provider"/>

    <!-- 定义注册中心地址 -->
    <dubbo:registry address="zookeeper://xx.xx.xx.xx:2181"/>

    <!-- 定义实现类对应的 bean -->
    <bean id="greetingsService" class="cn.edu.tju.service.GreetingsServiceImpl"/>
    <!-- 定义服务信息，引用上面的 bean -->
    <dubbo:service interface="cn.edu.tju.service.GreetingsService" ref="greetingsService"/>

</beans>

其中配置了服务本身和注册中心地址
四、服务端主类：

package cn.edu.tju;

import java.util.concurrent.CountDownLatch;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Application {

    public static void main(String[] args) throws InterruptedException {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("dubbo-demo-provider.xml");
        context.start();

        // 挂起主线程，防止退出
        new CountDownLatch(1).await();
    }
}

其中使用了CountDownLatch，使服务端一直运行。
五、客户端依赖，类似于服务器端
六、客户端的服务接口定义，同服务端

package cn.edu.tju.service;

public interface GreetingsService {

    String sayHi(String name);
}

七、客户端配置文件：

<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.xsd
       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <context:property-placeholder/>

    <!-- 定义应用名 -->
    <dubbo:application name="demo-provider"/>

    <!-- 定义注册中心地址 -->
    <dubbo:registry address="zookeeper://xx.xx.xx.xx:2181"/>

    <!-- 定义订阅信息，Dubbo 会在 Spring Context 中创建对应的 bean -->
    <dubbo:reference id="greetingsService" interface="cn.edu.tju.service.GreetingsService"/>

</beans>

其中配置了注册中心的地址和使用的服务。
八、客户端主类：

package cn.edu.tju;

import java.io.IOException;

import cn.edu.tju.service.GreetingsService;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Application {
    public static void main(String[] args) throws IOException {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("dubbo-demo-consumer.xml");
        context.start();
        GreetingsService greetingsService = (GreetingsService) context.getBean("greetingsService");

        String message = greetingsService.sayHi("dubbo");
        System.out.println("Receive result ======> " + message);
        System.in.read();
        System.exit(0);
    }

}

九、分别运行服务端和客户端，在客户端看到运行结果：

dubbo复习：（19）dubbo 和spring整合（老古董）_spring