spring boot 三步集成rabbitmq

引入依赖

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

编写config类

@Configuration
public class RabbitmqConfig {
    public static final String RECORD_QUEUE = "teaching-assistant-record_queue";
    @Bean
    public Jackson2JsonMessageConverter jsonMessageConverter() {
        return new Jackson2JsonMessageConverter();
    }
    @Bean
    public Queue queue() {
        //创建一个队列队列，并指定队列的名字
        return new Queue(RECORD_QUEUE,true);
    }
}

使用rabbitmq

@Override
    public String add(ExamRecordDto examRecordDto) {
        rabbitTemplate.convertAndSend("", RabbitmqConfig.RECORD_QUEUE,examRecordDto);
        return "Exam record added successfully";
    }
    @Autowired
    private ExamRecordMapper examRecordMapper;
    @RabbitListener(queues = {RabbitmqConfig.RECORD_QUEUE})
    public void receiveHelloQueueMessage(ExamRecordDto examRecordDto) {
        System.out.println("消费者收到消息:"+examRecordDto.toString());
        QueryWrapper<ExamRecordEntity> queryWrapper=new QueryWrapper<>();
        queryWrapper.eq("exam_id",examRecordDto.getExamId());
        queryWrapper.eq("exercise_id",examRecordDto.getExerciseId());
        queryWrapper.eq("user_id",examRecordDto.getUserId());
        if(examRecordMapper.selectOne(queryWrapper)!=null){
            examRecordMapper.delete(queryWrapper);
        }
        examRecordMapper.insert(examRecordDto.toEntity());
    }