spring boot 集成 dubbo starter 实现多注册中心配置(yaml配置)

spring boot 集成 dubbo后yml配置如何写呢，下面就跟我一起看看。

三个module:

spring-boot-dubbo-share
spring-boot-dubbo-provider
spring-boot-dubbo-consumer

首先在spring-boot-dubbo-share模块中定义个一个接口

【强调】：zookeeper的地址，替换成你们自己的，如果没有则写 N/A

package com.share.service;

/**
 * @Author: zj
 * @Date: 2019-09-23
 * @Version 1.0
 */
public interface IDubboPrintService {
    String print(String string);
}

完成之后，记得maven点击clean->package->install，方便后面的provder和consumer模块引用。

然后在spring-boot-dubbo-provider提供服务

首先pom.xml配置如下（注意：把第一步中的share模块引入进去），我这里没写出来，毕竟你的jar包名跟我的不一样

...... 
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <java.version>1.8</java.version>
        <dubbo.version>2.7.1</dubbo.version>
    </properties>

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

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

yaml文件配置：

server:
  port: 8080
  servlet:
    context-path: /

# -------------------- Dubbo 配置 BEGIN --------------------
dubbo:
  #  registry: # 单注册中心,注意属性级别:dubbo.registry,注意多注册中心格式:@Service(registry = {"registry1","registry2","registry3"})
  #    register: false # true(默认), false:表示服务不注册到注册中心(只订阅,直连服务正常),且dubbo-admin不显示
  #    address: zookeeper://127.0.0.1:2181
  registries: # 多注册中心,注意属性级别:dubbo.registries, 不同的方法可以用@Service(registry = {"registry2"}),指定不同的注册中心
    provider1:
      register: false #默认true, false:表示服务不注册到注册中心
      address: zookeeper://55.55.55.82:2181
    provider2:
      register: false
      address: zookeeper://55.55.55.196:2181
    provider3:
      register: false
      address: zookeeper://55.55.55.139:2181
  application:
    name: myProvider
  #    qos-enable: true # 默认值 true, 是否允许在线运维, 配置和查询服务
  #    qos-port: 22222 # 默认值2222
  #    qos-accept-foreign-ip: false # 默认false , 不允许远程访问 telnet
  scan:
    base-packages: com.privder.serivce
  protocol:
    name: dubbo
    port: 28080
  provider:
    retries: 0        # 服务提供者无需重试
    timeout: 6000     # 默认只有1s
# -------------------- Dubbo 配置 END --------------------

目录结构

注意：开启EnableDubbo这个注解

package com.privder;

import com.share.util.ServletContextUtil;
import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.Import;


@SpringBootApplication
@EnableDubbo
@Import(ServletContextUtil.class)
public class DubboProviderApplication extends SpringBootServletInitializer {

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

package com.privder.serivce.impl;//package com.cmb.service.dubbo.provider;

import com.share.service.IDubboPrintService;
import org.apache.dubbo.config.annotation.Service;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


// registry指定注册中心,默认是全部
// @Service(registry = {"provider1","provider3"})
@Service(group = "project-dubbo-provider", version = "1.0.0", registry = {"provider1", "provider2", "provider3"})
@org.springframework.stereotype.Service("DP.PrintService1")
public class IDubboPrintServiceImpl implements IDubboPrintService {
    private static final Logger logger = LoggerFactory.getLogger(IDubboPrintServiceImpl.class);

    @Override
    public String print(String str) {
        logger.info("{}-{}-{}:{}", "project1", "1.0.0", "provider1 provider2 provider3", str);
        return "provider1+provider2+provider3";
    }
}

接下来完成spring-boot-dubbo-consumer模块

pom.xml跟provder类似，记得把dubbo-starter依赖加进去

消费者的yaml配置如下：

server:
  port: 8081
  servlet:
    context-path: /

# -------------------- Dubbo 配置 BEGIN --------------------
dubbo:
  #  registry: # 单注册中心,注意属性级别:dubbo.registry
  #    register: false # true(默认), false:表示服务不注册到注册中心(只订阅,直连服务正常),且dubbo-admin不显示
  #    address: zookeeper://127.0.0.1:2181
  registries: # 多注册中心
#    consumer1:
#      register: true #默认,false:表示服务不注册到注册中心
#      address: N/A
#    consumer2:
#      address: N/A
#    consumer3:
#      address: N/A
    consumer1:
      register: false #表示服务不注册到注册中心
      address: zookeeper://55.55.55.82:2181
    consumer2:
      register: false #false:表示服务不注册到注册中心
      address: zookeeper://55.55.55.196:2181
    consumer3:
      register: false #false:表示服务不注册到注册中心
      address: zookeeper://55.55.55.139:2181
  application:
    name: myConsumer
  scan:
    base-packages: com.consumer.service
  consumer:
    timeout: 3000
    check: false  # 默认true.服务启动时候检查是否可用,服务不可用时无法启动项目, false则不检查
    retries: 2    # 服务重试次数
# -------------------- Dubbo 配置 END --------------------

目录结构

package com.consumer;

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


@SpringBootApplication
@EnableDubbo
public class DubboConsumerApplication extends SpringBootServletInitializer {

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

package com.consumer.service.impl;//package com.cmb.service.consumer;

import com.share.service.IDubboPrintService;
import org.apache.dubbo.config.annotation.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @Author: z信息
 * @Date: 2019-11-08
 * @Version 1.0
 */

@org.springframework.stereotype.Service
public class DubboPrintConsumer {

    private static final Logger logger = LoggerFactory.getLogger(DubboPrintConsumer.class);

    // project1 与provider中的group名保持一致
    // @Reference(group = "project1", version = "1.0.0",url = "127.0.0.1:2181")
    // consumer 相当于xml中的 reference id
    // 如果不是直连,去掉 url = "dubbo://localhost:28080"
    @Reference(url = "dubbo://localhost:28080", group = "project-dubbo-provider", version = "1.0.0", registry = {"consumer1", "consumer2", "consumer3"})
    private IDubboPrintService printService1;

    public IDubboPrintService getPrintService1() {
        return printService1;
    }

}

package com.consumer.controller;

import com.consumer.service.impl.DubboPrintConsumer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Date: 2019-08-29
 * @Version 1.0
 */

@RestController
public class Controller {
    private static final Logger logger = LoggerFactory.getLogger(Controller.class);

    @Autowired
    private DubboPrintConsumer dubboPrintConsumer;

    @GetMapping(value = "/dubboPrint", produces = "application/json; charset=UTF-8")
    public String dubboPrint() {
        String fromProvider= dubboPrintConsumer.getPrintService1().print("consumer1,consumer3");
        logger.info("Call Provider Success: {}", fromProvider);
        return "success";
    }
}

配置完成后，启动应用，访问：http://localhost:8081/dubboPrint

来源：CSDN

作者：Mr.True

链接：https://blog.csdn.net/q258523454/article/details/103481326

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