rabbitMQ消费消息端关键代码

package com.tszr.service;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.tszr.entity.Weather;
import org.springframework.amqp.rabbit.annotation.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.stereotype.Component;

@Component
public class Receiver1 {

    @Autowired
    private ObjectMapper objectMapper;

    @RabbitListener(
            bindings =
            @QueueBinding(
                    //队列名weather-queue1保证和别的订阅者不一样
                    value = @Queue(value = "weather-queue1",durable = "true"),
                    //weather-exchange与发布者的交换机名相同
                    exchange = @Exchange(value = "weather-exchange",durable = "true",type = "topic"),
                    //weather.message与发布者的消息的路由Key相同
                    key = "weather.message"
            )
    )

    @RabbitHandler
    public void receiveWeather(@Payload byte[] weatherMessage)throws Exception{
        System.out.println("-----------订阅者Receiver1接收到消息--------");
        //将JSON字节数组转换为Weather对象
        Weather w=objectMapper.readValue(weatherMessage, Weather.class);
        System.out.println("Receiver1收到的消息内容："+w);
    }
}