java——spring boot集成RabbitMQ——如何实现手动ack——topic——路由模式——代码展示...

发送方：

pom文件：

<?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>org.example</groupId>
    <artifactId>springrmqtopicsender</artifactId>
    <version>1.0-SNAPSHOT</version>
 
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
 
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.5</version>
        <relativePath/>
    </parent>
 
 
    <dependencies>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
 
    </dependencies>
 
</project>

yml配置：

spring:
  rabbitmq:
    host: 127.0.0.1
    port: 5672
    username: guest
    password: guest

config配置：

package org.example.config;
 
import org.springframework.amqp.core.TopicExchange;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
/**
 * 主题交换机
 * topic策略可以根据routingKey的规则(通配符方式)进行去匹配队列进行转发规则为*.#.*
 */
@Configuration
public class RabbitTopicConfig
{
 
 
    public final static String TOPIC_NAME = "amqp-topic";
 
 
    @Bean
    TopicExchange topicExchange()
    {
 
        return new TopicExchange(TOPIC_NAME,true,false);
 
    }
 
 
}

发送代码：

package org.example.sender;
 
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
 
/**
 * 消息生产者 发送消息
 */
@Component
public class MessageSender {
 
    @Autowired
    RabbitTemplate rabbitTemplate;
 
    /**
     * 发送消息
     * @param info
     */
    public void send(String info)
    {
 
        System.out.println("发送消息>>>"+info);
 
 
        rabbitTemplate.convertAndSend("amqp-topic","huawei.a",info);
    }
 
}

启动服务发送：

package org.example.controller;
 
import org.example.sender.MessageSender;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
/**
 * @Auther: moerhai@qq.com
 * @Date: 2020/10/4 11:34
 */
@RestController
public class IndexController {
 
    @Autowired
    MessageSender messageSender;
 
    @RequestMapping("/index")
    public String index()
    {
 
        messageSender.send("中国——路由——华为");
        return "SUCCESS";
    }
 
}

package org.example;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@SpringBootApplication
public class HelloWorldApplication
{
 
    public static void main(String[] args)
    {
 
        SpringApplication.run(HelloWorldApplication.class, args);
 
    }
}

 

 

==================================================================

手动ack：

pom文件：

<?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>org.example</groupId>
    <artifactId>springrmqtopicreceiver</artifactId>
    <version>1.0-SNAPSHOT</version>
 
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
 
 
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.5</version>
        <relativePath/>
    </parent>
 
 
    <dependencies>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
 
    </dependencies>
 
</project>

yml文件：

spring:
  rabbitmq:
    host: 127.0.0.1
    port: 5672
    username: guest
    password: guest
    #关闭自动ack，设置为手动ack
    listener:
      simple:
        acknowledge-mode: manual

配置文件：

package org.example.config;
 
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
/**
 * 主题交换机
 * topic策略可以根据routingKey的规则(通配符方式)进行去匹配队列进行转发规则为*.#.*
 */
@Configuration
public class RabbitTopicConfig {
 
    public final static String TOPIC_NAME = "amqp-topic";
 
    @Bean
    TopicExchange topicExchange(){
        return new TopicExchange(TOPIC_NAME,true,false);
    }
 
    @Bean
    Queue xiaomi(){
        return new Queue("xiaomi");
    }
 
    @Bean
    Queue huawei(){
        return new Queue("huawei");
    }
 
    @Bean
    Binding xiaomiBinding(){
        //xiaomi.#：表示消息的routingKey是以xiaomi开头的就会路由到xiaomi的队列
        return BindingBuilder.bind(xiaomi()).to(topicExchange()).with("xiaomi.#");
    }
 
    @Bean
    Binding huaweiBinding(){
        return BindingBuilder.bind(huawei()).to(topicExchange()).with("huawei.#");
    }
}

接收信息，并手动签收：

package org.example.receiver;
 
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;
import java.io.IOException;
 
/**
 */
@Component
public class TopicReceiver {
 
    //分别监听名称为xiaomi、huawei的队列
    @RabbitListener(queues = "xiaomi")
    public void handlerXM(Message message,String msg, Channel channel) throws IOException {
 
        System.out.println("小米："+msg);
 
        //手动签收，不启动批量签收
        channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
    }
 
 
    @RabbitListener(queues = "huawei")
    public void handlerHW(Message message,String msg, Channel channel) throws IOException {
 
 
        System.out.println("华为："+msg);
 
        channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
    }
 
 
}

启动服务：

package org.example;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@SpringBootApplication
public class HelloWorldApplication
{
 
    public static void main(String[] args)
    {
 
        SpringApplication.run(HelloWorldApplication.class, args);
 
    }
}