RabbitMQ 监听

最新推荐文章于 2025-06-12 10:17:19 发布

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本文档展示了如何在Spring Boot项目中使用RabbitMQ接收并处理来自不同主题的JSON消息，涉及JSONObject解析和异常处理。

package com.test.wps.projcet.receiver;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.rabbit.annotation.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Map;


@Component

public class MsgReceiver {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());


    @RabbitHandler
    @RabbitListener(bindings = @QueueBinding(
            exchange = @Exchange(value = "${wkflow.exchange}",durable = "true",type = "topic"),
            value = @Queue(value = "${wkflow.queueName}",durable = "true"),
            key = "${wkflow.key}"
    ))
    public void handleMessage(Map<String, String> receiverMsg) {
        try{
            String systemType=receiverMsg.get("systemType")==null?"":receiverMsg.get("systemType").toString();
            logger.info(systemType);
            String formType=receiverMsg.get("formType")==null?"":receiverMsg.get("formType").toString();
            logger.info("formType");
            logger.info(formType);
            if(formType!=null){
              logger.info("formType is not null");
            }else{
                logger.info("formType is null");
            }
        }catch (Exception e){
            e.printStackTrace();
            logger.error("消息接收异常",e);
        }
    }
}

配置：

  rabbitmq:
    port: 5672
    host: 192.168.1.3
    username: weepal
    password: Weepal@123
#    host: 127.0.0.1
#    username: guest
#    password: guest
    listener:
      simple:
        #并发消费者初始值
        concurrency: 10
        #并发消费者最大值
        max-concurrency: 20
        #每个消费者每次监听可拉取消息数量
        prefetch: 5