public void syncUserSingle(User user) {
    // 省略一大堆業(yè)務代碼
    rabbitTemplate.convertAndSend("q_sync_user_single", user);
}

public void syncUserBatch(List<User> userList) {
    // 省略一大堆業(yè)務代碼
    rabbitTemplate.convertAndSend("q_sync_user_batch", userList);
}

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
        <relativePath/>
    </parent>
    <!-- 省略部分信息 -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
    </dependencies>
</project>

@Configuration
public class QueueConfig {
    @Bean
    public Queue test() {
        return new Queue("test");
    }
}

@Configuration
public class RabbitTemplateConfig {
    @Autowired
    public RabbitTemplateConfig(RabbitTemplate rabbitTemplate) {
        // 設置Json消息轉(zhuǎn)換器
        rabbitTemplate.setMessageConverter(new Jackson2JsonMessageConverter());
    }
}

@Controller
@RequestMapping("/test")
public class TestController {

    @Resource
    private RabbitTemplate template;

    @GetMapping("/send")
    public void send() {
        template.convertAndSend("test", Collections.singletonList(new User(20, "不一樣的科技宅")));
    }
}

@Data
@AllArgsConstructor
public class User {
    /**
     * 年齡
     */
    private Integer age;

    /**
     * 姓名
     */
    private String name;
}

@Configuration
public class RabbitListenerConfig {

    @Bean
    public SimpleRabbitListenerContainerFactory customFactory(SimpleRabbitListenerContainerFactoryConfigurer configurer,
                                                              ConnectionFactory connectionFactory) {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        // 設置消息轉(zhuǎn)換器
        factory.setMessageConverter(new Jackson2JsonMessageConverter());
        configurer.configure(factory, connectionFactory);
        return factory;
    }

}

@Service
public class UserService {

    public void save(List<User> userList) {
        userList.forEach(System.out::println);
    }
    
}
@Componentpublic class Receiver {    @Resource    private UserService userService;    @RabbitListener(queues = "test", containerFactory = "customFactory")    public void receive(@Payload List<User> msg) {        userService.save(msg);    }}

converter.setAlwaysConvertToInferredType(true);

// 始終轉(zhuǎn)換推斷類型
converter.setAlwaysConvertToInferredType(true);