我搭建所使用的Spring Boot版本是2.1.8.RELEASE，dubbo-spring-boot-starter的版本是2.7.3，ZooKeeper的版本是3.4.14。

1 API模塊

API模塊由服務提供方爲服務消費方暴露接口，一般將接口和pojo放入其中，提供者和消費者引入該模塊即可。創建一個Spring Boot模塊，命名爲dubbo-user-interface。

1.1 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.hys</groupId>
    <artifactId>dubbo-user-interface</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>dubbo-user-interface</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>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-spring-boot-starter</artifactId>
            <version>2.7.3</version>
        </dependency>
    </dependencies>

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

</project>

1.2 UserService

package com.hys.dubbo.user.service;

public interface UserService {

    String sayHello(String name);
}

2 服務提供者模塊

創建一個Spring Boot模塊，命名爲dubbo-user-provider。

2.1 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.hys</groupId>
    <artifactId>dubbo-user-provider</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>dubbo-user-provider</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.hys</groupId>
            <artifactId>dubbo-user-interface</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>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-spring-boot-starter</artifactId>
            <version>2.7.3</version>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.14</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-recipes</artifactId>
            <version>2.13.0</version>
        </dependency>
    </dependencies>

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

</project>

2.2 application.properties

dubbo.application.name=dubbo-user-provider
dubbo.registry.protocol=zookeeper
dubbo.registry.address=192.168.253.129:2181,192.168.253.129:2182,192.168.253.129:2183
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880
dubbo.monitor.protocol=registry

2.3 啓動類

package com.hys.dubbo;

import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@EnableDubbo
@SpringBootApplication
public class DubboUserProviderApplication {

    public static void main(String[] args) {
        SpringApplication.run(DubboUserProviderApplication.class, args);
    }

}

2.4 UserServiceImpl

package com.hys.dubbo.user.service.impl;

import com.hys.dubbo.user.service.UserService;
import org.apache.dubbo.config.annotation.Service;

@Service(version = "1.0.0", timeout = 10000, interfaceClass = UserService.class)
public class UserServiceImpl implements UserService {

    @Override
    public String sayHello(String name) {
        return "Hello " + name + " !";
    }
}

這裏需要注意的是@Service註解使用的是Dubbo而不是Spring的註解。

3 服務消費者模塊

創建一個Spring Boot模塊，命名爲dubbo-user-consumer。

3.1 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.hys</groupId>
    <artifactId>dubbo-user-consumer</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>dubbo-user-consumer</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.hys</groupId>
            <artifactId>dubbo-user-interface</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.7.3</version>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.14</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-recipes</artifactId>
            <version>2.13.0</version>
        </dependency>
    </dependencies>

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

</project>

3.2 application.properties

server.port=8081
dubbo.application.name=dubbo-user-consumer
dubbo.registry.address=zookeeper://192.168.253.129:2181,192.168.253.129:2182,192.168.253.129:2183
dubbo.monitor.protocol=registry

3.3 啓動類

package com.hys.dubbo;

import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@EnableDubbo
@SpringBootApplication
public class DubboUserConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(DubboUserConsumerApplication.class, args);
    }

}

3.4 UserController

package com.hys.dubbo.user.controller;

import com.hys.dubbo.user.service.UserService;
import org.apache.dubbo.config.annotation.Reference;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping(value = "/dubbo")
public class UserController {

    @Reference(version = "1.0.0")
    private UserService userService;

    @RequestMapping("/sayHello/{name}")
    public String sayHello(@PathVariable("name") String name) {
        String result = userService.sayHello(name);
        return result;
    }
}

4 運行及結果

分別啓動上述三個Spring Boot模塊，頁面訪問http://localhost:8081/dubbo/sayHello/Robert Hou，結果如下所示：

由上可以看到，訪問成功，並且在ZooKeeper中可以看到已經含有Dubbo的相關注冊信息了：

Spring Boot整合Dubbo搭建實例

1 API模塊

1.1 pom.xml

1.2 UserService

2 服務提供者模塊

2.1 pom.xml

2.2 application.properties

2.3 啓動類

2.4 UserServiceImpl

3 服務消費者模塊

3.1 pom.xml

3.2 application.properties

3.3 啓動類

3.4 UserController

4 運行及結果

Wireshark 安裝+使用（一）

Dubbo面試題總結

Dubbo核心組件

Spring Boot整合Dubbo搭建實例

ZooKeeper面試題總結

ZooKeeper分佈式鎖實現

Mac下配置sublime實現LaTeX

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

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