详解spring boot容器加载完后执行特定操作

public class ApplicationStartup implements ApplicationListener<ContextRefreshedEvent>{  public void onApplicationEvent(ContextRefreshedEvent event)   {    //在容器加载完毕后获取dao层来操作数据库    OSSVideoRepository ossVideoRepository = (OSSVideoRepository)event.getApplicationContext().getBean(OSSVideoRepository.class);    //在容器加载完毕后获取配置文件中的配置    ServerConfig serverConfig = (ServerConfig)event.getApplicationContext().getBean(ServerConfig.class);        ServerFileScanner fileScanner = new ServerFileScanner(        ossVideoRepository, serverConfig.getScanpath());    //在容器加载完毕后启动线程    Thread thread = new Thread(fileScanner);    thread.start();   }}

@Component@ConfigurationProperties(prefix = "server")public class ServerConfig {  private String aliyunossEndpoint;  private String aliyunossAccessKeyId;  private String aliyunossAccessKeySecret;  private String aliyunossBucketName;  private String scanpath;  public String getAliyunossEndpoint() {    return aliyunossEndpoint;  }  public void setAliyunossEndpoint(String aliyunossEndpoint) {    this.aliyunossEndpoint = aliyunossEndpoint;  }  public String getAliyunossAccessKeyId() {    return aliyunossAccessKeyId;  }  public void setAliyunossAccessKeyId(String aliyunossAccessKeyId) {    this.aliyunossAccessKeyId = aliyunossAccessKeyId;  }  public String getAliyunossAccessKeySecret() {    return aliyunossAccessKeySecret;  }  public void setAliyunossAccessKeySecret(String aliyunossAccessKeySecret) {    this.aliyunossAccessKeySecret = aliyunossAccessKeySecret;  }  public String getAliyunossBucketName() {    return aliyunossBucketName;  }  public void setAliyunossBucketName(String aliyunossBucketName) {    this.aliyunossBucketName = aliyunossBucketName;  }  public String getScanpath() {    return scanpath;  }  public void setScanpath(String scanpath) {    this.scanpath = scanpath;  }}