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Springboot + netty + rabbitmq + myBatis

目录

0.为什么用消息队列

  1. 流量消峰
  2. 应用解耦
  3. 异步确认

1.代码文件创建结构

在这里插入图片描述

2.pom.xml文件

<?xml version="1.0" encoding="UTF-8"?><projectxmlns="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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.4.RELEASE</version><relativePath/><!-- lookup parent from repository --></parent><groupId>com.test</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>demo</name><description>Demo project for Spring Boot</description><packaging>war</packaging><url/><licenses><license/></licenses><developers><developer/></developers><scm><connection/><developerConnection/><tag/><url/></scm><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.amqp</groupId><artifactId>spring-rabbit</artifactId></dependency><dependency><groupId>io.netty</groupId><artifactId>netty-all</artifactId><version>4.1.86.Final</version><!-- 根据需要选择版本 --></dependency><dependency><groupId>com.baomidou</groupId><artifactId>dynamic-datasource-spring-boot-starter</artifactId><version>3.5.0</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>3.1.1</version></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.2.0</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-plugin</artifactId><configuration><skip>true</skip></configuration></plugin></plugins></build></project>

3.三个配置文件开发和生产环境

在这里插入图片描述
文件一 application.properties

#开发环境
spring.profiles.active=dev
#生产环境
#spring.profiles.active=prod

文件二 application-dev.properties 开发环境

spring.application.name=demo
server.servlet.context-path=/demo1
server.port=1001
#spring.main.allow-circular-references=true
spring.rabbitmq.host=实际ip地址
spring.rabbitmq.port=5672
spring.rabbitmq.username=root
spring.rabbitmq.password=root
spring.rabbitmq.virtual-host=/
##创建单线程监听容器 本项目目前用的是单线程  这里预期值2000 需根据实际情况调整
spring.rabbitmq.listener.simple.prefetch=2000
##创建多线程监听容器
#spring.rabbitmq.listener.direct.prefetch=2000
#spring.rabbitmq.listener.simple.acknowledge-mode=auto
# application.properties 示例
spring.rabbitmq.listener.simple.acknowledge-mode=MANUAL
#开启消息确认机制
spring.rabbitmq.publisher-confirm-type=correlated
spring.rabbitmq.publisher-returns=true

netty.server.port=1002
netty.server.bossThreads=1
netty.server.workerThreads=1

server.max-http-header-size=655360
mybatis.mapper-locations=classpath:mapper/*Mapper.xml
mybatis.type-aliases-package=com.mt.entity
spring.mvc.pathmatch.matching-strategy=ant_path_matcher
logging.level.com.ysd.mapper=info
logging.file.name=demo.log
logging.level.com.mt.mapper=info
#mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
mybatis.configuration.map-underscore-to-camel-case=true
pagehelper.helper-dialect=mysql
pagehelper.reasonable=true
spring.main.allow-circular-references=true
spring.jackson.default-property-inclusion=non_null

#<!--=====================数据库1 ====================-->
spring.datasource.dynamic.英文数据库名称1.url=jdbc:mysql://ip地址:3306/英文数据库名称?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=false
spring.datasource.dynamic.datasource.英文数据库名称1.username=root
spring.datasource.dynamic.datasource.英文数据库名称1.password=root
spring.datasource.dynamic.datasource.英文数据库名称1.driver-class-name=com.mysql.cj.jdbc.Driver
#<!--=====================数据库2 ====================-->
spring.datasource.dynamic.英文数据库名称2.url=jdbc:mysql://ip地址:3306/英文数据库名称?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=false
spring.datasource.dynamic.datasource.英文数据库名称2.username=root
spring.datasource.dynamic.datasource.英文数据库名称2.password=root
spring.datasource.dynamic.datasource.英文数据库名称2.driver-class-name=com.mysql.cj.jdbc.Driver

4.Rabbitmq 基础配置类 TtlQueueConfig

rabbitmq基础信息配置已经在application-dev.properities中进行配置过一部分

importorg.springframework.amqp.core.*;importorg.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;importorg.springframework.amqp.rabbit.connection.ConnectionFactory;importorg.springframework.beans.factory.annotation.Qualifier;importorg.springframework.context.annotation.Bean;importorg.springframework.context.annotation.Configuration;importjava.util.HashMap;importjava.util.Map;@ConfigurationpublicclassTtlQueueConfig{publicstaticfinalString X_EXCHANGE ="X";publicstaticfinalString QUEUE_A ="QA";publicstaticfinalString QUEUE_B ="QB";publicstaticfinalString Y_DEAD_LETTER_EXCHANGE ="Y";publicstaticfinalString DEAD_LETTER_QUEUE ="QD";@Bean("xExchange")publicDirectExchangexExchange(){returnnewDirectExchange(X_EXCHANGE);}@Bean("yExchange")publicDirectExchangeyExchange(){returnnewDirectExchange(Y_DEAD_LETTER_EXCHANGE);}@Bean("queueA")publicQueuequeueA(){Map<String,Object> args =newHashMap<>(3);//声明当前队列绑定的死信交换机
        args.put("x-dead-letter-exchange", Y_DEAD_LETTER_EXCHANGE);//声明当前队列的死信路由 key
        args.put("x-dead-letter-routing-key","YD");//声明队列的 TTL
        args.put("x-message-ttl",150000);//超出150秒没有被消费  就会进入死信队列returnQueueBuilder.durable(QUEUE_A).withArguments(args).build();}@BeanpublicBindingqueueaBindingX(@Qualifier("queueA")org.springframework.amqp.core.Queue queueA,@Qualifier("xExchange")DirectExchange xExchange){returnBindingBuilder.bind(queueA).to(xExchange).with("XA");}//声明队列 B ttl 为 40s 并绑定到对应的死信交换机@Bean("queueB")publicQueuequeueB(){Map<String,Object> args =newHashMap<>(3);//声明当前队列绑定的死信交换机
        args.put("x-dead-letter-exchange", Y_DEAD_LETTER_EXCHANGE);//声明当前队列的死信路由 key
        args.put("x-dead-letter-routing-key","YD");//声明队列的 TTL
        args.put("x-message-ttl",40000);//超出40秒没有被消费  就会进入死信队列returnQueueBuilder.durable(QUEUE_B).withArguments(args).build();}//声明队列 B 绑定 X 交换机@BeanpublicBindingqueuebBindingX(@Qualifier("queueB")Queue queue1B,@Qualifier("xExchange")DirectExchange xExchange){returnBindingBuilder.bind(queue1B).to(xExchange).with("XB");}//声明死信队列 QD@Bean("queueD")publicQueuequeueD(){returnnewQueue(DEAD_LETTER_QUEUE);}//声明死信队列 QD 绑定关系@BeanpublicBindingdeadLetterBindingQAD(@Qualifier("queueD")Queue queueD,@Qualifier("yExchange")DirectExchange yExchange){returnBindingBuilder.bind(queueD).to(yExchange).with("YD");}@BeanpublicSimpleRabbitListenerContainerFactorysimpleRabbitListenerContainerFactory(ConnectionFactory connectionFactory){SimpleRabbitListenerContainerFactory simpleRabbitListenerContainerFactory =newSimpleRabbitListenerContainerFactory();//这个connectionFactory就是我们自己配置的连接工厂直接注入进来
        simpleRabbitListenerContainerFactory.setConnectionFactory(connectionFactory);//这边设置消息确认方式由自动确认变为手动确认
        simpleRabbitListenerContainerFactory.setAcknowledgeMode(AcknowledgeMode.MANUAL);//设置消息预取数量// simpleRabbitListenerContainerFactory.setPrefetchCount(1);return simpleRabbitListenerContainerFactory;}}

5.建立netty服务器 + rabbitmq消息生产者

创建服务器类 初始化启动服务器NettyServer

importio.netty.bootstrap.ServerBootstrap;importio.netty.channel.*;importio.netty.channel.nio.NioEventLoopGroup;importio.netty.channel.socket.SocketChannel;importio.netty.channel.socket.nio.NioServerSocketChannel;importio.netty.handler.codec.string.StringDecoder;importio.netty.handler.codec.string.StringEncoder;importlombok.extern.slf4j.Slf4j;importorg.springframework.amqp.rabbit.core.RabbitTemplate;importorg.springframework.beans.factory.annotation.Autowired;importorg.springframework.beans.factory.annotation.Value;importorg.springframework.boot.ApplicationArguments;importorg.springframework.boot.ApplicationRunner;importorg.springframework.stereotype.Component;@Component@Slf4jpublicclassNettyServerimplementsApplicationRunner{@AutowiredprivateRabbitTemplate rabbitTemplate;//有可能在项目初始化的时候加载不出来导致项目隐形报错//加载application-dev.proerities文件中 对应参数配置项@Value("${netty.server.port}")privateint port;publicint getPort (){return port;}@Overridepublicvoidrun(ApplicationArguments args)throwsException{
        log.info("netty服务启动端口"+getPort());EventLoopGroup bossGroup =newNioEventLoopGroup();// 用于接收进来的连接EventLoopGroup workerGroup =newNioEventLoopGroup();// 用于处理已经被接收的连接ServerBootstrap b =newServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)// 使用Nio的通道类型.childHandler(newChannelInitializer<SocketChannel>(){// 添加一个处理器来处理接收到的数据@OverridepublicvoidinitChannel(SocketChannel ch)throwsException{ChannelPipeline p = ch.pipeline();
                        p.addLast(newStringDecoder());
                        p.addLast(newStringEncoder());
                        p.addLast(newSimpleChannelInboundHandler<String>(){@OverrideprotectedvoidchannelRead0(ChannelHandlerContext ctx,String msg)throwsException{//netty监听端口消息发送消息通过rabbitmq生产者发送到消息队列sendMessage(ctx,msg);}@OverridepublicvoidexceptionCaught(ChannelHandlerContext ctx,Throwable cause){
                                cause.printStackTrace();
                                ctx.close();}});}});// 绑定端口，开始接收进来的连接ChannelFuture f = b.bind(getPort()).sync();// 等待服务器socket关闭
        f.channel().closeFuture().sync();}//netty监听端口消息发送消息通过rabbitmq生产者发送到消息队列中//充当消息的生产者发送publicvoidsendMessage(ChannelHandlerContext ctx,String msg){//  接收netty监听信息来源作为消息生产者
        rabbitTemplate.convertAndSend("X","XA","来自QA"+msg);
        ctx.writeAndFlush("===>"+msg);}}

6.建立常规队列的消费者 Consumer

importcom.rabbitmq.client.Channel;importcom.test.demo.service.MessageProcessService;importlombok.extern.slf4j.Slf4j;importorg.springframework.amqp.core.Message;importorg.springframework.amqp.rabbit.annotation.RabbitListener;importorg.springframework.stereotype.Component;importjavax.annotation.Resource;importjava.io.IOException;importjava.util.ArrayList;importjava.util.HashMap;importjava.util.List;importjava.util.Map;@Slf4j@ComponentpublicclassConsumer{@ResourceprivateMessageProcessService messProceService;privateMap<Integer,Message> messageMap =newHashMap<>();privateint i =1;privateint j =1;@RabbitListener(queues ="QA")publicvoidreceiveQA(Message message,Channel channel)throwsInterruptedException,IOException{
        i++;synchronized(this){
            messageMap.put(i,message);if(messageMap.size()>=1500){// 模拟数据库插入操作System.out.println("模拟插入数据库操作，QA队列处理消息数："+ messageMap.size());processMessagesBatch(channel);System.out.println("模拟插入成功, 准备进行下一次收集");}}}//    @RabbitListener(queues = "QB")//    public void receiveQB(Message message, Channel channel) throws IOException {//        String msg = new String(message.getBody());//        log.info("当前时间：{},监听QB队列信息{}", new Date().toString(), msg);//    }publicstaticclassSleepUtils{publicstaticvoidsleep(int second){try{Thread.sleep(1000* second);}catch(InterruptedException _ignored){Thread.currentThread().interrupt();}}}privatevoidprocessMessagesBatch(Channel channel)throwsIOException{List<String> list =newArrayList<>();long startTime =System.currentTimeMillis();Map<Integer,Message> tempMessageMap =newHashMap<>(messageMap);
        messageMap.clear();for(Map.Entry<Integer,Message> map : tempMessageMap.entrySet()){
            list.add("C"+(j++)+":===>"+"QA队列收集"+newString(map.getValue().getBody()));}int count = messProceService.add(list);if(count == list.size()){System.out.println("插入数据成功");for(Map.Entry<Integer,Message> map : tempMessageMap.entrySet()){
                channel.basicAck(map.getValue().getMessageProperties().getDeliveryTag(),false);}
            list.clear();}long durationSeconds =(System.currentTimeMillis()- startTime)/1000;System.out.println("插入1500条数据执行时间: "+ durationSeconds);}}

7.建立死信队列的消费者 DeadLetterConsumer

importcom.rabbitmq.client.Channel;importcom.test.demo.service.MessageProcessService;importlombok.extern.slf4j.Slf4j;importorg.springframework.amqp.core.Message;importorg.springframework.amqp.rabbit.annotation.RabbitListener;importorg.springframework.stereotype.Component;importjavax.annotation.Resource;importjava.io.IOException;importjava.util.*;@Slf4j@ComponentpublicclassDeadLetterConsumer{@ResourceprivateMessageProcessService messProceService;privateMap<Integer,Message> messageMap =newHashMap<>();privateint i =1;privateint j =1;@RabbitListener(queues ="QD")publicvoidreceiveD(Message message,Channel channel)throwsIOException{
        i++;synchronized(this){
            messageMap.put(i, message);if(messageMap.size()>=100){// 模拟数据库插入操作System.out.println("模拟插入数据库操作，死信队列处理消息数："+ messageMap.size());processMessagesBatch(channel);System.out.println("模拟插入成功, 准备进行下一次收集");// 确认当前消息，以便RabbitMQ知道它可以释放此消息}}}privatevoidprocessMessagesBatch(Channel channel)throwsIOException{List<String> list =newArrayList<>();// 复制当前消息映射以避免在迭代时修改Map<Integer,Message> tempMessageMap =newHashMap<>(messageMap);
        messageMap.clear();long startTime =System.currentTimeMillis();for(Map.Entry<Integer,Message> map : tempMessageMap.entrySet()){
            list.add("C"+(j++)+":===>"+"死信队列收集"+newString(map.getValue().getBody()));}int count = messProceService.add(list);long durationSeconds =(System.currentTimeMillis()- startTime)/1000;System.out.println("插入50条数据执行时间: "+ durationSeconds);if(count == list.size()){System.out.println("插入数据成功");
            list.clear();for(Map.Entry<Integer,Message> map : tempMessageMap.entrySet()){
                channel.basicAck(map.getValue().getMessageProperties().getDeliveryTag(),false);}}}}

8.建立mapper.xml文件

MessageProcessMapper.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPEmapperPUBLIC"-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mappernamespace="com.test.demo.mapper.MessageProcessMapper"><insertid="add">
        INSERT INTO t_xinyang_direct (direct,create_date)
        VALUES
        <foreachcollection="list"item="item"separator=",">
            (
            #{item},
             SYSDATE()
            )
        </foreach></insert></mapper>

9.建立mapper文件接口

MessageProcessMapper

importcom.baomidou.dynamic.datasource.annotation.DS;importorg.apache.ibatis.annotations.Mapper;importjava.util.List;@Mapper@DS("英文数据库名称1")publicinterfaceMessageProcessMapper{intadd(List<String> list);}

10.建立接口ProducerController 测试

importlombok.extern.slf4j.Slf4j;importorg.springframework.amqp.rabbit.core.RabbitTemplate;importorg.springframework.beans.factory.annotation.Autowired;importorg.springframework.http.ResponseEntity;importorg.springframework.web.bind.annotation.GetMapping;importorg.springframework.web.bind.annotation.PathVariable;importorg.springframework.web.bind.annotation.RequestMapping;importorg.springframework.web.bind.annotation.RestController;@Slf4j@RestController@RequestMapping("/api")publicclassProducerController{@GetMapping("/hello/{message}")publicResponseEntity<String>sayHello(@PathVariableString message){returnResponseEntity.ok("Hello, RabbitMQ!==>"+message);}@AutowiredprivateRabbitTemplate rabbitTemplate;@GetMapping("/sendMsg/{message}")publicvoidsendMsg(@PathVariableString message){
        log.info("接收接口发送的消息请求");
        rabbitTemplate.convertAndSend("X","XA","消息来自tt1为10s的队列"+message);
        rabbitTemplate.convertAndSend("X","XB","消息来自tt1为150s的队列"+message);}}

11.测试接口请求1

测试请求接口 /hello
http://实际本机ip地址:1001/demo1/api/hello/返回浏览器输入内容
在这里插入图片描述

12.测试接口请求2

测试请求接口 /hello
http://实际本机ip地址:1001/demo1/api/sendRabbitMq/发给rabbitmq消息
在这里插入图片描述

13.网络助手测试NetAssist.exe

主要目的模拟向netty端口进行发送数据，通过netty监听到的信息然后通过rabbitmq的生产者发送rabbitmq的队列中，让消费者进行消费，如果消费者绑定死信队列,那么消费者从队列中取出消息后，经过一定时间未确认即不进行消费确认或者拒绝，然后入之前绑定好的死信队列中，供死信队列绑定的死信消费者进行消费处理。

14.观察rabbitmq界面管理简单介绍

在这里插入图片描述

标签： java-rabbitmq spring boot rabbitmq
本文转载自: https://blog.csdn.net/beiback/article/details/142577968
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