HM-RocketMQ2.3【SpringBoot整合Dubbo】

1 前置条件

安装依赖包

将dubbo-spring-boot-starter安装到本地仓库

mvn install -Dmaven.skip.test=true

注意

~~springboot整合dubbo、springboot整合rocketmq的前置任务目的是一致的，就是在本地安装源码~~

~~其实完全可以通过在maven中导入依赖解决~~

<dependency>
    <groupId>org.apache.dubbo</groupId>
    <artifactId>dubbo-spring-boot-starter</artifactId>
    <version>2.7.3</version>
</dependency>
<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-spring-boot-starter</artifactId>
    <version>2.1.1</version>
</dependency>

~~我们在springboot-rocketmq-provider和springboot-rocketmq-consumer两个微服务的pom中均加入以上两个依赖（此处只需duboo的）~~

2 搭建zookeeper[单机三节点|伪]集群

HMZK5【Zookeeper集群】 - yub4by - 博客园 (cnblogs.com)

学习zk课程时，曾在云服务器上搭建过一个zk集群，刚好用上，启动就可

因腾讯云服务器即将到期，实际使用的是华为云服务器，新搭建zk集群

端口开放

centos76网络/端口/防火墙常用命令 - yub4by - 博客园 (cnblogs.com)

zk配置文件

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/usr/local/zookeeper-cluster/zk1/data
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

#server.1=123.249.83.224:2881:3881
#server.2=123.249.83.224:2882:3882
#server.3=123.249.83.224:2883:3883

server.1=localhost:2881:3881
server.2=localhost:2882:3882
server.3=localhost:2883:3883

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/usr/local/zookeeper-cluster/zk2/data
# the port at which the clients will connect
clientPort=2182
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

#server.1=123.249.83.224:2881:3881
#server.2=123.249.83.224:2882:3882
#server.3=123.249.83.224:2883:3883

server.1=localhost:2881:3881
server.2=localhost:2882:3882
server.3=localhost:2883:3883

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/usr/local/zookeeper-cluster/zk3/data
# the port at which the clients will connect
clientPort=2183
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

#server.1=123.249.83.224:2881:3881
#server.2=123.249.83.224:2882:3882
#server.3=123.249.83.224:2883:3883

server.1=localhost:2881:3881
server.2=localhost:2882:3882
server.3=localhost:2883:3883

zk启动命令

/usr/local/zookeeper-cluster/zk1/bin/zkServer.sh start
/usr/local/zookeeper-cluster/zk2/bin/zkServer.sh start
/usr/local/zookeeper-cluster/zk3/bin/zkServer.sh start

3 dubbo：PRC服务接口

3.1 创建模块

在项目shop-project下创建仨maven模块：

springboot-dubbo-consumer

springboot-dubbo-provider

springboot-dubbo-interface

3.2 声明接口

在interface微服务下声明接口

package com.irun2u.service;

/**
 * @Author: haifei
 * @Date: 2022/11/9 8:32
 */
public interface UserService {
    public String sayHello(String name);
}

3.3 导入依赖

分别在consumer和provider微服务的pom中导入interface微服务的依赖

<dependency>
    <groupId>com.irun2u</groupId>
    <artifactId>springboot-dubbo-interface</artifactId>
    <version>1.0-SNAPSHOT</version>
</dependency>

4 服务提供者provider

4.1 添加依赖

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.1.RELEASE</version>
</parent>

<dependencies>
    <!--API-->
    <dependency>
        <groupId>com.irun2u</groupId>
        <artifactId>springboot-dubbo-interface</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
    <!--dubbo-->
    <dependency>
        <groupId>com.alibaba.spring.boot</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
        <version>2.0.0</version>
    </dependency>
    <!--spring-boot-stater-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <exclusions>
            <exclusion>
                <artifactId>log4j-to-slf4j</artifactId>
                <groupId>org.apache.logging.log4j</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <!--zookeeper-->
    <dependency>
        <groupId>org.apache.zookeeper</groupId>
        <artifactId>zookeeper</artifactId>
        <version>3.4.10</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.101tec</groupId>
        <artifactId>zkclient</artifactId>
        <version>0.9</version>
        <exclusions>
            <exclusion>
                <artifactId>slf4j-log4j12</artifactId>
                <groupId>org.slf4j</groupId>
            </exclusion>
        </exclusions>
    </dependency>
</dependencies>

4.2 配置文件

# application.properties
spring.application.name=dubbo-demo-provider
spring.dubbo.application.id=dubbo-demo-provider
spring.dubbo.application.name=dubbo-demo-provider
# 云服务器上的伪集群
#spring.dubbo.registry.address=zookeeper://101.43.128.227:2181;zookeeper://101.43.128.227:2182;zookeeper://101.43.128.227:2183
spring.dubbo.registry.address=zookeeper://123.249.83.224:2181;zookeeper://123.249.83.224:2182;zookeeper://123.249.83.224:2183
# 本地虚拟机上的真集群
#spring.dubbo.registry.address=zookeeper://192.168.115.15:2181;zookeeper://192.168.115.16:2181;zookeeper://192.168.115.17:2181
spring.dubbo.server=true
spring.dubbo.protocol.name=dubbo
spring.dubbo.protocol.port=20880

4.3 启动类

package com.irun2u;

import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


/**
 * @Author: haifei
 * @Date: 2022/11/9 9:42
 */

/**
 * 注意：运行sb-dubbo-provider微服务前
 * 必须先对sb-dubbo-interface微服务进行maven-install操作
 * 因为provider和consumer服务均依赖于interface服务（导入了依赖）
 *
 * 直接运行会报错如下
 *      错误: 找不到或无法加载主类 com.irun2u.ProviderApplication
 */
@EnableDubboConfiguration
@SpringBootApplication
public class ProviderApplication {
    public static void main(String[] args){
        SpringApplication.run(ProviderApplication.class, args);
    }
}

4.4 服务实现

package com.irun2u.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.irun2u.service.UserService;
import org.springframework.stereotype.Component;
//import org.springframework.stereotype.Service;

/**
 * @Author: haifei
 * @Date: 2022/11/9 9:44
 */
//@Service
@Service(interfaceClass = UserService.class)
@Component //为了区分dubbo的service注解，用Component替换spring的service注解
public class UserServiceImpl implements UserService {
    @Override
    public String sayHello(String name) {
        return "hello: " + name;
    }
}

4.5测试

5 dubbo-admin

本地远程访问http://123.249.83.224:8080/dubbo-admin root/root

服务名即接口名

6 服务消费者consumer

6.1 添加依赖

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.irun2u</groupId>
    <artifactId>springboot-dubbo-consumer</artifactId>
    <version>1.0-SNAPSHOT</version>


    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
    </parent>

    <dependencies>
        <!--API-->
        <dependency>
            <groupId>com.irun2u</groupId>
            <artifactId>springboot-dubbo-interface</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--WEB-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--dubbo-->
        <dependency>
            <groupId>com.alibaba.spring.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>
        <!--spring-boot-stater-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>log4j-to-slf4j</artifactId>
                    <groupId>org.apache.logging.log4j</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <!--zookeeper-->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.10</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.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.9</version>
            <exclusions>
                <exclusion>
                    <artifactId>slf4j-log4j12</artifactId>
                    <groupId>org.slf4j</groupId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>


</project>

6.2 配置文件

spring.application.name=dubbo-demo-consumer
spring.dubbo.application.id=dubbo-demo-consumer
spring.dubbo.application.name=dubbo-demo-consumer
spring.dubbo.registry.address=zookeeper://123.249.83.224:2181;zookeeper://123.249.83.224:2182;zookeeper://123.249.83.224:2183

6.3 启动类

package com.irun2u;

import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @Author: haifei
 * @Date: 2022/11/21 15:58
 */
@SpringBootApplication
@EnableDubboConfiguration
public class ConsumerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class, args);
    }
}

6.4 controller

package com.irun2u.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.irun2u.service.UserService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Author: haifei
 * @Date: 2022/11/21 15:59
 */
@RestController //此处响应数据，而不跳转页面
@RequestMapping("/user")
public class UserController {

    @Reference //dubbo远端注入
    private UserService userService;

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