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SpringBoot-Dubbo

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离职两个月，太久没写项目了，重新温故下。

  • 这里的代码是最简单的演示效果。

  • 项目下载地址 git cloen -b v1.0.0 https://github.com/z201/learning-spring-dubbo-micro-service.git

  • v1.0.0分支dubbo xml 配置演示基于zk做注册中心。

  • v2.0.0分支dubbo annotation 配置演示基于zk做注册中心。

  • v3.0.0分支dubbo xml 配置演示基于nacos做注册中心。

项目模块

  • 现在演示的v1.0.0的代码
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<modules>
    <module>dubbo-micro-service-consumer</module>  // 消费者
    <module>dubbo-micro-service-provider</module>  // 生产者
    <module>dubbo-micro-service-zookeeper</module> // 注册中心
    <module>dubbo-micro-service-api</module>       // 公用api
</modules>
  • 相关依赖处理,主要是处理一个log输出的问题
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<!-- 排除掉 zkclient 、Zookeeper、 dubbo log4j 使用slf4j -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>log4j-over-slf4j</artifactId>
    <version>1.7.25</version>
</dependency>

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>dubbo</artifactId>
    <version>2.6.0</version>
    <exclusions>
        <exclusion>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.jboss.netty</groupId>
            <artifactId>netty</artifactId>
        </exclusion>
        <exclusion>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </exclusion>
    </exclusions>
</dependency>

<dependency>
    <groupId>com.101tec</groupId>
    <artifactId>zkclient</artifactId>
    <version>0.2</version>
    <exclusions>
        <exclusion>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </exclusion>
    </exclusions>
</dependency>

<!-- Zookeeper -->
<dependency>
    <groupId>org.apache.zookeeper</groupId>
    <artifactId>zookeeper</artifactId>
    <version>3.4.13</version>
    <exclusions>
        <exclusion>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </exclusion>
    </exclusions>
</dependency>

dubbo-micro-service-api

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package cn.z201.io.api;

/**
 * Demo Service interface
 *
 * @author zengqingfeng
 * @since 2.7.0
 */
public interface DefaultDemoServiceI {

    /**
     * 测试
     * @param name
     * @return
     */
    String sayHello(String name);

}

dubbo-micro-service-consumer

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package cn.z201.io.learning.rpc.micro.consumer;

import cn.z201.io.api.DefaultDemoServiceI;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author z201.coding@gmail.com
 **/
@RestController
@Slf4j
public class ApiController {

    @Autowired
    private DefaultDemoServiceI defaultDemoService;

    @RequestMapping(value = "")
    public String runner() {
        return defaultDemoService.sayHello("consumer");
    }
}


package cn.z201.io.learning.rpc.micro.consumer;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ImportResource;

/**
 * @author z201.coding@gmail.com
 **/
@SpringBootApplication
@Slf4j
@ImportResource(value = {
        "classpath:dubbo-consumer.xml"
})
public class AppConsumerMain {

    public static void main(String[] args) {
        System.setProperty("dubbo.application.logger","slf4j");
        SpringApplication.run(AppConsumerMain.class, args);
    }
}

  • 配置文件
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server:
  port: 8001
  compression:
    enabled: true
    min-response-size: 1
# undertow
  undertow:
    worker-threads: 20
    buffer-size: 512
    io-threads: 2
    access-log:
      enabled: true
      dir: target/logs
      pattern: combined

spring:
  name: consumer-spring-boot-starter
  devtools:
    restart:
      enabled: true

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<?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">
    <dubbo:application name="consumer-spring-boot-starter"/>
    <dubbo:consumer timeout="5000" />
    <dubbo:registry address="zookeeper://127.0.0.1:2181" check="false"/>
    <dubbo:reference id="defaultDemoServiceI" interface="cn.z201.io.api.DefaultDemoServiceI" check="false"/>
</beans>

dubbo-micro-service-provider

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package cn.z201.io.learning.rpc.micro.provider.service;

import cn.z201.io.api.DefaultDemoServiceI;
import org.springframework.beans.factory.annotation.Value;


/**
 * Default {@link DefaultDemoServiceImpl}
 *
 * @author zengqingfeng
 * @see DefaultDemoServiceImpl
 * @since 2.7.0
 */
public class DefaultDemoServiceImpl implements DefaultDemoServiceI{

    /**
     * The default value of ${dubbo.application.name} is ${spring.application.name}
     */
    @Value("${spring.name}")
    private String serviceName;

    @Override
    public String sayHello(String name) {
        return String.format("[%s] : Hello, %s", serviceName, name);
    }
}


package cn.z201.io.learning.rpc.micro.provider;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ImportResource;

import java.io.IOException;

/**
 * @author z201.coding@gmail.com
 **/
@SpringBootApplication
@ImportResource(value = {
        "classpath:dubbo-provider.xml"
})
@Slf4j
public class AppProviderMain {

    public static void main(String[] args) {
        System.setProperty("dubbo.application.logger","slf4j");
        SpringApplication.run(AppProviderMain.class, args);
        try {
            System.in.read(); // 没有使用http容器启动，防止程序直接运行结束。
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}


  • 配置文件
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spring:
  name: provider-spring-boot-starter
  devtools:
    restart:
      enabled: true

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<?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">
    <dubbo:application name="provider-spring-boot-starter"></dubbo:application>
    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
    <dubbo:protocol name="dubbo" port="20881"/>
    <dubbo:service interface="cn.z201.io.api.DefaultDemoServiceI" ref="defaultDemoServiceImpl"/>
    <bean id="defaultDemoServiceImpl" class="cn.z201.io.learning.rpc.micro.provider.service.DefaultDemoServiceImpl"/>
</beans>

dubbo-micro-service-zookeeper

这个就不贴代码了，单独跑个zk是一样的。只不过我吧dubbo官方的demo代码复制过来了。

效果

  • 访问 http://127.0.0.1:8001/ 显示[dubbo-spring-boot-starter] : Hello, consumer。