Spring Cloud Alibaba-整合Dubbo_spring cloud alibaba整合dubbo-优快云博客

本文链接：https://blog.youkuaiyun.com/adam_wzs/article/details/121418434

本文介绍了一个使用 Spring Cloud 和 Dubbo 实现的微服务示例项目。该项目包括 API 定义、服务提供者与消费者的实现及配置。通过 Maven 构建，并使用 Nacos 作为服务注册中心。

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1.API

spring-cloud-dubbo-sample-api

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.ceair.customer</groupId>
        <artifactId>alibaba-dubbo</artifactId>
        <version>1.0.0</version>
    </parent>


    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-dubbo-sample-api</artifactId>
    <version>1.0.0</version>

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.alibaba.cloud.dubbo.service.UserService</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

/*
 * Copyright 2013-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.cloud.dubbo.service;

import java.util.Collection;

/**
 * {@link User} Service.
 *
 * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
 */
public interface UserService {

	boolean save(User user);

	boolean remove(Long userId);

	Collection<User> findAll();

	String hello(String name);
}

2.生产者

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>com.ceair.customer</groupId>
        <artifactId>alibaba-dubbo</artifactId>
        <version>1.0.0</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>

    <artifactId>spring-cloud-dubbo-provider-sample</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-dubbo-sample-api</artifactId>
            <version>1.0.0</version>
        </dependency>
    </dependencies>
</project>

server:
  port: 8000
---
spring:
  application:
    name: spring-cloud-dubbo-provider-sample
  main:
    allow-bean-definition-overriding: true
  cloud:
    nacos:
      discovery:
        server-addr: 10.18.21.104:8848
---
dubbo:
  scan:
    base-packages: com.alibaba.cloud.dubbo.service
  protocol:
    name: dubbo
    port: -1
  registry:
    address: nacos://10.18.21.104:8848

/*
 * Copyright 2013-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.cloud.dubbo.service;

import org.apache.dubbo.config.annotation.DubboService;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
/**
 * In-Memory {@link UserService} implementation.
 */
@DubboService(protocol = "dubbo")
public class UserServiceImpl implements UserService {

    private Map<Long, User> usersRepository = new HashMap<>();

    @Override
    public boolean save(User user) {
        return usersRepository.put(user.getId(), user) == null;
    }

    @Override
    public boolean remove(Long userId) {
        return usersRepository.remove(userId) != null;
    }

    @Override
    public Collection<User> findAll() {
        return usersRepository.values();
    }

    @Override
    public String hello(String name) {
        return "hello word dubbo";
    }

}

3.消费者

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>com.ceair.customer</groupId>
        <artifactId>alibaba-dubbo</artifactId>
        <version>1.0.0</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>

    <artifactId>spring-cloud-dubbo-consumer-sample</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-dubbo-sample-api</artifactId>
            <version>1.0.0</version>
        </dependency>
    </dependencies>
</project>

server:
  port: 8080
---
spring:
  application:
    name: spring-cloud-dubbo-consumer-sample
  cloud:
    nacos:
      discovery:
        server-addr: 10.18.21.104:8848
  main:
    allow-bean-definition-overriding: true
---
dubbo:
  protocol:
    name: dubbo
    port: -1
  registry:
    address: nacos://10.18.21.104:8848
  cloud:
    subscribed-services: spring-cloud-dubbo-provider-sample

package com.alibaba.cloud.dubbo.controller;

import com.alibaba.cloud.dubbo.service.UserService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Description:
 * @Author: wangzs
 * @Date: 2021/11/18
 */
@RestController
@RequestMapping("/user")
public class UserController {
    @DubboReference
    private UserService userService;

    @RequestMapping(value = "/hello")
    public String hello() {
        return userService.hello("wangzhengshi");
    }
}

4.父工程POM文件

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.ceair.customer.spring.cloud.alibaba</groupId>
        <artifactId>spring-cloud-alibaba-customer</artifactId>
        <version>1.0</version>
    </parent>

    <groupId>com.ceair.customer</groupId>
    <artifactId>alibaba-dubbo</artifactId>
    <version>1.0.0</version>
    <packaging>pom</packaging>

    <modules>
        <module>spring-cloud-dubbo-sample-api</module>
        <module>spring-cloud-dubbo-provider-sample</module>
        <module>spring-cloud-dubbo-consumer-sample</module>
    </modules>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- Dubbo Spring Cloud Starter -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-openfeign-core</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- Spring Cloud Nacos Service Discovery -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <classifier>exec</classifier>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

spring cloud版本控制

<?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>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
        <relativePath/>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.ceair.customer.spring.cloud.alibaba</groupId>
    <artifactId>my-shopping</artifactId>
    <version>1.0</version>
    <packaging>pom</packaging>

    <name>my-shopping</name>
    <description>my-shopping</description>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring.cloud.version>Hoxton.SR9</spring.cloud.version>
        <spring.cloud.alibaba.version>2.2.6.RELEASE</spring.cloud.alibaba.version>
        <hutool.version>5.7.16</hutool.version>
    </properties>

    <modules>
        <module>shopping-domain</module>
        <module>shopping-service-user</module>
        <module>shopping-service-feign</module>
        <module>shopping-service-gateway</module>
        <module>shopping-service-gateway-sentinel</module>
    </modules>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring.cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring.cloud.alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-bom</artifactId>
                <version>${hutool.version}</version>
                <type>pom</type>
                <!-- 注意这里是import -->
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <classifier>exec</classifier>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>