初始化springboot时为什么出现调用bean失败的错误

Question

我正在课堂上尝试设置rabbitmq连接工厂。希望使用@value注释读取application.properties文件中定义的属性。但是，bean配置不正确。我不能理解这一点。代码如下：

@Controller
@Configuration
@RequestMapping("/unittestdata")
@Component
@PropertySource("classpath:application.properties")
public class UnitAmqpRestController {


    @Value("${spring.rabbitmq.port}")
    public static int mqPort;

    public UnitAmqpRestController() {

    }
    private static final Logger logger = LoggerFactory.getLogger(UnitAmqpRestController.class);

    private static RabbitTemplate rabbitTemplate;
    private String replyQueueName;

    private static Connection connection;
    private static Channel channel;
    private String requestQueueName = "rpc_queue_unit";

    public UnitAmqpRestController(RabbitTemplate rabbitTemplate, String replyQueueName, Connection connection, Channel channel, String requestQueueName) {

        this.rabbitTemplate = rabbitTemplate;
        this.replyQueueName = replyQueueName;
        this.connection = connection;
        this.channel = channel;
        this.replyQueueName = requestQueueName;

    }

    @PostConstruct  
    public static void main() throws Exception {

        rabbitTemplate.setReplyTimeout(15_000L);
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(getHostProperty());

        factory.setPort(mqPort);
        connection = factory.newConnection();
        channel = connection.createChannel();

    }


    public static String getHostProperty() {
        Properties properties = new Properties();
        try {
            File file = ResourceUtils.getFile("classpath:application.properties");
            InputStream in = new FileInputStream(file);
            properties.load(in);
        } catch (IOException e) {

        }
        return properties.getProperty("spring.rabbitmq.host");

    }

以下是错误：

2019-06-18 10:58:02.642信息29037---[main]o.apache.catalina.core.StandardService：正在停止服务[Tomcat]2019-06-18 10:58:02.661信息29037---[main]utoConfigurationReportLoggingInitializer:

不知道问题是在构造函数中还是在主方法中？？我是不是错过了@bean配置之类的东西？？

请建议

Answer 1

感谢M.Deinum的评论和帖子。我把详细的文件

Spring-引导-起动器-AMQP

https://spring.io/guides/gs/messaging-rabbitmq/