SpringBoot與Dubbo整合下篇

時間 2019-12-12

原文原文鏈接

　　（1）pom.xml引入相關依賴jar包，以下：git

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.5.3</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.5</version>
            <exclusions>
                <exclusion>                
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
                <exclusion>                
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.github.sgroschupf</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.1</version>
        </dependency>

　　（2）編寫服務的接口以及實現類，以下：github

package springboot.dao;

public interface DubboService {

    public String sayHello();
}

　　接口實現類：web

package springboot.dao.imp;
import org.springframework.stereotype.Service;
import springboot.dao.DubboService;

@Service("DubboService")
public class DubboServiceImp implements DubboService{

    @Override
    public String sayHello() {
        
        return "Hello Dubbo";
    }

}

　　（3）在resources文件下創建服務方provider.xml配置文件，內容以下：spring

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://code.alibabatech.com/schema/dubbo
    http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    <!-- 服務應用名稱 -->
    <dubbo:application name="provider"/>
    <!-- 使用zookeeper作爲註冊中心 -->
    <dubbo:registry  protocol="zookeeper" address="zookeeper://172.31.19.224:2181"/>
    <!-- ref中的值要跟服務實現類中的@Server的值一致 -->
    <dubbo:service interface="springboot.dao.DubboService" ref="DubboService"></dubbo:service>
</beans>

　　（4）修改springboot啓動類，啓動時引入provider.xml文件，使用@ImportResource("classpath:provider.xml")，以下:
apache

package springboot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.ImportResource;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
@EnableCaching
@ImportResource("classpath:consumer.xml")
public class SpringbootApplication extends SpringBootServletInitializer{

    public static void main(String[] args) {
        SpringApplication.run(SpringbootApplication.class, args);
    }
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(SpringbootApplication.class);
    }
}

　　至此，服務方已經配置完畢了，我這裏將代碼發佈到tomcat上。若是想在本地測試話，須要更改一下啓動端口，由於後面消費方也須要啓動。瀏覽器

　　（5）接下來咱們將服務接口.class文件（即上述的DubboService.class接口）打成jar包,（服務消費方在項目中須要導入該jar包才能調用服務），進入到DubboService.class目錄下，啓動控制檯，輸入：tomcat

　　至此，dubbo服務方提供已經開發完畢！springboot

　　（6）接下來開發服務消費方，將上述jar包導入到項目中。若是是maven項目，還須要將jar繼續打包，將上述jar包修改爲DubboService-1.0.jar，輸入以下命令：app

mvn install:install-file -Dfile=DubboService-1.0.jar -DgroupId=dubboService -DartifactId=dubboService -Dversion=1.0 -Dpackaging=jar

　　結束後，會在本地倉庫生成以下文件夾：maven

　（7）在resources文件下新建consumer.xml配置文件，以下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://code.alibabatech.com/schema/dubbo
    http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    <!-- 應用名稱 -->
    <dubbo:application name="consumer" />
    <!-- zookeeper做爲註冊中心 -->
    <dubbo:registry  protocol="zookeeper" address="zookeeper://172.31.19.224:2181" />
    <!-- 生成遠程服務代理 -->
    <dubbo:reference interface="springboot.dao.DubboService" id="dubboService"></dubbo:reference>
</beans>

　　（8）在pom.xml中引入剛剛打包生成的jar包，以下：

 <dependency>
            <groupId>dubboService</groupId>
            <artifactId>dubboService</artifactId>
            <version>1.0</version>
  </dependency>

　　（9）新建Controller，以下：

package springboot.web;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import springboot.dao.DubboService;


@RestController
public class HelloController {
    
    @Autowired
    private DubboService dubboService;

    @RequestMapping("/hello")
    public String hello(){
        return dubboService.sayHello();
    }
}

　　（10）修改啓動類，以下：

package springboot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.ImportResource;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
@EnableCaching
@ImportResource("classpath:consumer.xml")
public class SpringbootApplication extends SpringBootServletInitializer{

    public static void main(String[] args) {
        SpringApplication.run(SpringbootApplication.class, args);
    }
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(SpringbootApplication.class);
    }
}