rabbitMQ工厂模式使用代码

配置文件

rabbitMQ:
  host: rabbitmq.com
  port: 30000
  username: xxxx
  password: xxxxx
  topic: amq.topic
  queueName: icost-beta
  virtualHost: icost-beta
  #开启发送确认机制，将来消息到达交换机以后有一个回调
  publisher-confirm-type: correlated
  #消息到达消息队列回调（如果消息没有成功到达队列，会触发回调方法）
  publisher-returns: true
  template:
    retry:
      enabled: true  # 开启重发机制
      initial-interval: 1000ms #间隔 1秒
      max-attempts: 6    #最多发6次
      multiplier: 1.2 #每次间隔 时间*1.2
      max-interval: 10000ms  #每次最大间隔时间
  listener:
    simple:
      acknowledge-mode: manual

读取配置

    @Value("${rabbitMQ.username}")
    private String username;

    @Value("${rabbitMQ.password}")
    private String password;

    @Value("${rabbitMQ.host}")
    private String host;

    @Value("${rabbitMQ.port}")
    private int port;

    @Value("${rabbitMQ.topic}")
    private String topic;

    //声明队列
    @Value("${rabbitMQ.queueName}")
    private String  queueName;

    @Value("${rabbitMQ.virtualHost}")
    private String  virtualHost;

 

发送消息

/**
     * 发布信息
     */
    private void sendProducer (MQMessage mqMessage)throws IOException, TimeoutException{
        Gson gson = new Gson();
        // 发送同步消息
        String messageStr = gson.toJson(mqMessage);
        //创建连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        factory.setUsername(username);
        factory.setPassword(password);
        //设置 RabbitMQ 地址
        factory.setHost(host);
        factory.setPort(port);
        factory.setVirtualHost(virtualHost);
        //建立到代理服务器到连接
        Connection conn = factory.newConnection();
        //获得信道
        Channel channel = conn.createChannel();
        //声明交换机
        channel.exchangeDeclare(topic, "topic",true);
        //消息持久化
        channel.queueDeclare(queueName,true,false,false,null);
        String domainType =null;
        if("ContractCreate".equals(mqMessage.getDomainType())){
            domainType = "Contract."+mqMessage.getDomainType();
        }else if("ContractModification".equals(mqMessage.getDomainType())){
            domainType = "Contract."+mqMessage.getDomainType();
        }else if("ContractPayment".equals(mqMessage.getDomainType())){
            domainType = "Contract."+mqMessage.getDomainType();
        }else if("ContractSettlement".equals(mqMessage.getDomainType())){
            domainType = "Contract."+mqMessage.getDomainType();
        }else if("EngineerInstruction".equals(mqMessage.getDomainType())){
            domainType = "Contract."+mqMessage.getDomainType();
        }else if("JicaiContract".equals(mqMessage.getDomainType())){
            domainType = "Contract."+mqMessage.getDomainType();
        }else if("bid".equals(mqMessage.getDomainType())){
            domainType = "bid."+mqMessage.getDomainType();
        }else if("vendor".equals(mqMessage.getDomainType())){
            domainType = "vendor."+mqMessage.getDomainType();
        }else if("SubProject".equals(mqMessage.getDomainType())){
            domainType = "SubProject."+mqMessage.getDomainType();
        }else if("Project".equals(mqMessage.getDomainType())){
            domainType = "SubProject."+mqMessage.getDomainType();
        }else if("ContractTemplate".equals(mqMessage.getDomainType())){
            domainType = "TargetCost."+mqMessage.getDomainType();
        }else if("ContractPlanning".equals(mqMessage.getDomainType())){
            domainType = "TargetCost."+mqMessage.getDomainType();
        }else if("TargetCost".equals(mqMessage.getDomainType())){
            domainType = "TargetCost."+mqMessage.getDomainType();
        }else{
            domainType = mqMessage.getDomainType();
        }
        //发布消息==>使用动态路由(通配符方式)
        String key = domainType; //指定发布的路由key   ContractCreate||ContractModification||ContractPayment||ContractSettlement||EngineerInstruction||JicaiContract
        channel.basicPublish(topic, key, true,null,messageStr.getBytes(StandardCharsets.UTF_8));
        // 同步发送消息，只要不抛异常就是成功。
        log.info(new Date() + " Send mq message success:--"+messageStr.toString());
        channel.close();
        conn.close();

    }

接收消息

    /**
     * 订阅消息，处理业务
     */
    public void normalSubscribe() throws IOException, TimeoutException {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setUsername(username);
        factory.setPassword(password);
        //设置 RabbitMQ 地址
        factory.setHost(host);
        factory.setPort(port);
        factory.setVirtualHost(virtualHost);

        //建立到代理服务器到连接
        Connection conn = factory.newConnection();
        //获得信道
        final Channel channel = conn.createChannel();
        //声明交换机
        channel.exchangeDeclare(topic, "topic",true);

        //绑定临时队列与交换机并设置获取交换机中动态路由
        String key = "bid.*";//使用通配符指定路由key
        channel.queueBind(queueName, topic, key);
        //消费消息
        channel.basicConsume(queueName, true, new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                try {
                    //接收到的消息内容
                    String msg = new String(body);
                    MQWorkflowMessageBody messageBody = objectMapper.readValue(msg, MQWorkflowMessageBody.class);
                    if ("bid".equals(messageBody.getDomainType()) && StringUtils.isNotBlank(messageBody.getBusinessKey()) && StringUtils.isNotBlank(String.valueOf(messageBody.getStatus()))) {
                        handler.processRequest(messageBody.getBusinessKey(), String.valueOf(messageBody.getStatus()));
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

        });

    }