SpringBoot项目一启动就加载指定方法

CommandLineRunner 接口

Spring Boot应用程序在启动后，会遍历CommandLineRunner接口的实例并运行它们的run方法。
可以利用@Order注解来规定所有CommandLineRunner实例的运行顺序。

具体的实现

/**
 * 项目启动时需要加载的方法
 */
@Order(value = 1)
@Component
public class StartConfig1 implements CommandLineRunner {
    @Autowired
    private EquipmentService equipmentService;
    //连接tcp
    @Autowired
    private TcpClientsManageService tcpClientsManageService;
    /**
     * Callback used to run the bean.
     * @param args incoming main method arguments
     * @throws Exception on error
     */
    @Override
    public void run(String... args) throws Exception {
        List<Equipment> equipmentList = equipmentService.queryEquipmentList();
        try {
            for (Equipment equipment : equipmentList) {
                Boolean aBoolean = tcpClientsManageService.connTcp(equipment);
                equipment.setEState("已连接");
                equipmentService.updateEquipment(equipment);
            }
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

/**
 * 项目启动时需要加载的方法
 */
@Order(value = 2)
@Component
public class StartConfig2 implements CommandLineRunner {
    /**
     * Callback used to run the bean.
     * @param args incoming main method arguments
     * @throws Exception on error
     */
    @Override
    public void run(String... args) throws Exception {
       //自己的业务逻辑
    }
}

最后结果

你会发现在项目启动后会执行这2个方法，根据Order由小到大依次执行。