springboot rabbitmq消息同步用作接口调用

1、引入依赖

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>

2、配置文件

rabbitmq:
addresses: 10.0.0.203
port: 5672
username: root
password: 123456
virtual-host: /
listener:
simple:
concurrency: 10
max-concurrency: 10
prefetch: 1
auto-startup: true
default-requeue-rejected: true
template:
retry:
enabled: true
initial-interval: 1000
max-attempts: 3
max-interval: 10000
multiplier: 1

2、注解配置

package dhht.seal.hn.gsgate.rabbitmq;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.FanoutExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitAdmin;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @Author: sh
 * @Description: RabbitMqConfig
 * @Date: 10:33 2019/11/4
 */
@Configuration
public class RabbitMqConfig {

    public static final String QUEUE = "hnyz_gs_queue";

    @Value("${spring.rabbitmq.addresses}")
    private String host;

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

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

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

    @Value("${spring.rabbitmq.virtual-host}")
    private String virtualHost;

    public static final String GS_EXCHANGE ="gs_exchange";

    /**
     * 处理连接端口
     * @return
     */
    @Bean
    public CachingConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory(host,port);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        connectionFactory.setVirtualHost(virtualHost);
        connectionFactory.setPublisherConfirms(true);
        return connectionFactory;
    }

    @Bean
    public RabbitAdmin rabbitAdmin(ConnectionFactory connectionFactory) {
        RabbitAdmin admin = new RabbitAdmin(connectionFactory);
        admin.setAutoStartup(true);
        return admin;
    }

    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate template =new RabbitTemplate(connectionFactory);
        template.setUseDirectReplyToContainer(false);
        template.setReplyTimeout(-1);
        return template;
    }

    @Bean
    public Queue cretaeQueue(){
        return new Queue(QUEUE,true);
    }

    @Bean(name="gs_exchange")
    public FanoutExchange getGsExchange() {
        return new FanoutExchange("gs_exchange", true, false, null);
    }

    @Bean
    public Binding getFauoutBinding() {
        return BindingBuilder.bind(cretaeQueue()).to(getGsExchange());
    }
}

package dhht.seal.hn.gsgate.rabbitmq;

import com.alibaba.fastjson.JSON;
import dhht.seal.hn.gsgate.model.pojo.CropQueryVO;
import dhht.seal.hn.gsgate.service.CropQueryService;
import dhht.seal.hn.gsgate.service.impl.CropServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessageProperties;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.ParameterizedType;

/**
 * @Author: sh
 * @Description: MqSender
 * @Date: 10:34 2019/11/4
 */
@Slf4j
@Service
public class MqSenderService {

    @Autowired
    AmqpTemplate amqpTemplate;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Resource
    private CropServiceImpl cropImplService;

    public String sendMsgToQueue(Object message) {
        try {
            String msg = beanToString(message);
            log.info("【发送的消息-社会信用代码】：" + msg);
            Message mm = rabbitTemplate.sendAndReceive(RabbitMqConfig.QUEUE, new Message(msg.getBytes("UTF-8"),new MessageProperties()));
            String msgResult = new String(mm.getBody());
            log.info("【同步消息返回结果-msgResult】："+msgResult);
            CropQueryVO cropQueryVO = cropImplService.cropQueryVO(msg);
            log.info("【消息发送后-sql查询结果-CropQueryVO】："+JSON.toJSONString(cropQueryVO));
            return JSON.toJSONString(cropQueryVO);
            //amqpTemplate.convertAndSend(MQConfig.QUEUE, msg);
            //ParameterizedTypeReference param = new ParameterizedTypeReference<Object>(){};
            //return amqpTemplate.convertSendAndReceiveAsType(RabbitMqConfig.QUEUE, beanToString(message),param).toString();
            //return amqpTemplate.convertSendAndReceive(RabbitMqConfig.QUEUE, message).toString();
        } catch (UnsupportedEncodingException e) {
            log.info(e.getMessage());
            return null;
        }

    }

    public void sendMsg(Object message) {
        String msg = beanToString(message);
        log.info("send message:" + msg);
        amqpTemplate.convertAndSend(RabbitMqConfig.QUEUE, msg);
        log.info("sendMsg（）---消息发送成功！");

    }

    public static <T> String beanToString(T value) {
        if (value == null) {
            return null;
        }
        Class<?> clazz = value.getClass();
        if (clazz == int.class || clazz == Integer.class) {
            return "" + value;
        } else if (clazz == String.class) {
            return (String) value;
        } else if (clazz == long.class || clazz == Long.class) {
            return "" + value;
        } else {
            return JSON.toJSONString(value);
        }
    }

}

package dhht.seal.hn.gsgate.rabbitmq;

import dhht.seal.hn.gsgate.service.CropQueryService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.io.UnsupportedEncodingException;

/**
 * @Author: sh
 * @Description: MqReceiver
 * @Date: 10:40 2019/11/4
 */
@Service
public class MqReceiverService {

    private static Logger log = LoggerFactory.getLogger(MqReceiverService.class);

    @Resource
    private CropQueryService cropQueryService;

    @RabbitListener(queues = RabbitMqConfig.QUEUE)
    @SendTo(RabbitMqConfig.QUEUE)
    public String receiveQueueMsg(/*String message*/Message message) {
        try {
            log.info("接收到队列消息：" + new String(message.getBody()));
            // 业务处理代码，工商拉取入库
            String resJson = cropQueryService.crropQuery(new String(message.getBody(),"UTF-8"));
            return resJson;
        } catch (UnsupportedEncodingException e) {
            log.error(e.getMessage());
            return null;
        }
    }
}

原文地址：https://www.cnblogs.com/sung1024/p/11944915.html