如何在spring-boot-admin中显示日志文件？

   @Bean

   @Primary

   @ConditionalOnMissingBean(MBeanServer.class)

   public MBeanServer mBeanServer() {

       MBeanServerFactoryBean factory = new MBeanServerFactoryBean();

       factory.setLocateExistingServerIfPossible(true);

       factory.afterPropertiesSet();

       return factory.getObject();

   }

   @Bean

   @ConditionalOnMissingBean

   public ObjectNamingStrategy objectNamingStrategy() {

       MetadataNamingStrategy strategy = new MetadataNamingStrategy(mBeanServer());

       strategy.setDefaultDomain("org.springframework.boot");

       return strategy;

   }

   @Bean

   @ConditionalOnMissingBean

   public MBeanInfoAssembler mBeanInfoAssembler() {

       return new SimpleReflectiveMBeanInfoAssembler();

   }

   @Bean

   @ConditionalOnMissingBean

   public AnnotationMBeanExporter mbeanExporter(ObjectNamingStrategy namingStrategy,

                                                 MBeanInfoAssembler assembler) {

       AnnotationMBeanExporter exporter = new AnnotationMBeanExporter();

       exporter.setNamingStrategy(namingStrategy);

       exporter.setAssembler(assembler);

       exporter.setRegistrationPolicy(RegistrationPolicy.IGNORE_EXISTING);

       return exporter;

   }

   @Bean

   @ConditionalOnMissingBean

   public ConnectorServerFactoryBean connectorServerFactoryBean(JmxProperties properties) {

       ConnectorServerFactoryBean factoryBean = new ConnectorServerFactoryBean();

       factoryBean.setServiceUrl(properties.getConnector());

       return factoryBean;

   }

   @Bean

   @ConditionalOnMissingBean

   public SpringApplicationAdminJmxAutoConfiguration springApplicationAdminJmxAutoConfiguration(

           JmxProperties jmxProperties, SpringApplicationAdminJmxProperties adminJmxProperties,

           ResourceLoader resourceLoader, Environment environment) throws IOException {

       SpringApplicationAdminJmxAutoConfiguration configuration = new SpringApplicationAdminJmxAutoConfiguration(

               jmxProperties, adminJmxProperties, resourceLoader, environment);

       configuration.setLoggingSystem(LoggingSystem.get(environment.getClassLoader()));

       return configuration;

   }

   @Bean

   @Order(Ordered.LOWEST_PRECEDENCE)

   public SelfNaming selfNaming() {

       return new SelfNaming() {

           @Override

           public ObjectName getObjectName(Object managedBean, String beanKey) throws MalformedObjectNameException {

               Map<String, String> properties = new HashMap<>();

               properties.put("type", "AdminApplication");

               properties.put("name", "Spring Boot Admin");

               properties.put("instance", getInstanceId());

               properties.put("context", getContextPath());

               properties.put("host", getHostName());

               properties.put("port", getPort());

               return ObjectNameManager.getInstance(properties);

           }

           private String getInstanceId() {

               return System.getProperty("spring.application.admin.instance-id", "unknown");

           }

           private String getContextPath() {

               return System.getProperty("server.servlet.context-path", "/");

           }

           private String getHostName() {

               try {

                   return InetAddress.getLocalHost().getHostName();

               } catch (UnknownHostException ex) {

                   return "unknown";

               }

           }

           private String getPort() {

               return System.getProperty("server.port", "unknown");

           }

       };

   }

   private static final class ObjectNameManager {

       private static final String DOMAIN = "org.springframework.boot";

       private static final String KEY_PROPERTY = "key";

       private static final String DEFAULT_KEY = "default";

       private static ObjectName getInstance(Map<String, String> properties) throws MalformedObjectNameException {

           Properties props = new Properties();

           props.putAll(properties);

           String domain = props.getProperty("domain", DOMAIN);

           String key = props.getProperty(KEY_PROPERTY, DEFAULT_KEY);

           props.remove("domain");

           props.remove(KEY_PROPERTY);

           String name = String.format("%s:type=%s,%s", domain, key,

                   StringUtils.collectionToDelimitedString(props.entrySet(), ","));

           return ObjectName.getInstance(name);

       }

   }

   public static void main(String[] args) {

       SpringApplication.run(MyApplication.class, args);

   }