本文整理了Java中org.springframework.context.annotation.Conditional类的一些代码示例，展示了Conditional类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Conditional类的具体详情如下：
包路径：org.springframework.context.annotation.Conditional
类名称：Conditional

Conditional介绍

暂无

代码示例

代码示例来源：origin: codecentric/spring-boot-admin

@Configuration
@ConditionalOnWebApplication
@Conditional(SpringBootAdminClientEnabledCondition.class)
@AutoConfigureAfter({WebEndpointAutoConfiguration.class, RestTemplateAutoConfiguration.class})
@EnableConfigurationProperties({ClientProperties.class, InstanceProperties.class, ServerProperties.class, ManagementServerProperties.class})
public class SpringBootAdminClientAutoConfiguration {

代码示例来源：origin: org.springframework.cloud/spring-cloud-context

@Configuration
@Conditional(KeyCondition.class)
@ConditionalOnMissingClass("org.springframework.security.rsa.crypto.RsaSecretEncryptor")
protected static class VanillaEncryptionConfiguration {
  @Autowired
  private KeyProperties key;
  @Bean
  @ConditionalOnMissingBean(TextEncryptor.class)
  public TextEncryptor textEncryptor() {
    return new EncryptorFactory(this.key.getSalt()).create(this.key.getKey());
  }
}

代码示例来源：origin: spring-cloud-incubator/spring-cloud-alibaba

@Configuration
@Conditional(MigrateOnConditionClass.class)
public class MigrateRibbonCofiguration {

  @Bean
  public MigrateRibbonBeanPostProcessor migrateBeanPostProcessor(IClientConfig clientConfig) {

    return new MigrateRibbonBeanPostProcessor(clientConfig);
  }
}

代码示例来源：origin: spring-cloud-incubator/spring-cloud-alibaba

/**
 * @author xiaolongzuo
 */
@Configuration
@Conditional(MigrateOnConditionMissingClass.class)
@ConditionalOnMissingBean(DiscoveryClient.class)
@EnableConfigurationProperties
@AutoConfigureBefore(SimpleDiscoveryClientAutoConfiguration.class)
public class AnsDiscoveryClientAutoConfiguration {

  @Bean
  public DiscoveryClient ansDiscoveryClient() {
    return new AnsDiscoveryClient();
  }

}

代码示例来源：origin: org.springframework.boot/spring-boot-devtools

@AutoConfigureAfter(DataSourceAutoConfiguration.class)
@Conditional(DevToolsDataSourceCondition.class)
@Configuration
public class DevToolsDataSourceAutoConfiguration {

代码示例来源：origin: ctripcorp/apollo

@Component
@Conditional(TitanCondition.class)
public class TitanEntityManager {

 private final TitanSettings settings;

 public TitanEntityManager(final TitanSettings settings) {
  this.settings = settings;
 }

 @SuppressWarnings({"rawtypes", "unchecked"})
 @Bean
 public DataSource datasource() throws Exception {
  Class clazz = Class.forName("com.ctrip.datasource.configure.DalDataSourceFactory");
  Object obj = clazz.newInstance();
  Method method = clazz.getMethod("createDataSource", new Class[] {String.class, String.class});
  DataSource ds = ((DataSource) method.invoke(obj,
    new Object[] {settings.getTitanDbname(), settings.getTitanUrl()}));
  Tracer.logEvent("Apollo.Datasource.Titan", settings.getTitanDbname());
  return ds;
 }

}

代码示例来源：origin: org.springframework.security.oauth.boot/spring-security-oauth2-autoconfigure

public static boolean matches(ConditionContext context) {
  Class<AuthorizationServerEndpointsConfigurationBeanCondition> type = AuthorizationServerEndpointsConfigurationBeanCondition.class;
  Conditional conditional = AnnotationUtils.findAnnotation(type,
      Conditional.class);
  StandardAnnotationMetadata metadata = new StandardAnnotationMetadata(type);
  for (Class<? extends Condition> conditionType : conditional.value()) {
    Condition condition = BeanUtils.instantiateClass(conditionType);
    if (condition.matches(context, metadata)) {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: forezp/BootNettyRpc

@Configuration
@Conditional(MailMonitorCondition.class)
protected static class MailMonitorConfig {
  @Autowired
  NettyRpcProperties nettyRpcProperties;
  @Bean
  public SmtpEventHandler smtpEventHandler() {
    SmtpEventHandler smtpEventHandler = new SmtpEventHandler( nettyRpcProperties );
    return smtpEventHandler;
  }
}

代码示例来源：origin: spring-cloud-incubator/spring-cloud-alibaba

/**
 * @author xiaolongzuo
 */
@Configuration
@Conditional(MigrateOnConditionMissingClass.class)
public class AnsRibbonClientConfiguration {

  @Bean
  @ConditionalOnMissingBean
  public ServerList<?> ansRibbonServerList(IClientConfig config) {
    AnsServerList serverList = new AnsServerList(config.getClientName());
    return serverList;
  }

}

代码示例来源：origin: codecentric/spring-boot-admin

@Configuration
@ConditionalOnWebApplication
@ConditionalOnCloudPlatform(CloudPlatform.CLOUD_FOUNDRY)
@Conditional(SpringBootAdminClientEnabledCondition.class)
@EnableConfigurationProperties(CloudFoundryApplicationProperties.class)
@AutoConfigureBefore({SpringBootAdminClientAutoConfiguration.class})
public class SpringBootAdminClientCloudFoundryAutoConfiguration {
  @Bean
  @ConditionalOnMissingBean
  public CloudFoundryMetadataContributor cloudFoundryMetadataContributor(CloudFoundryApplicationProperties cloudFoundryApplicationProperties) {
    return new CloudFoundryMetadataContributor(cloudFoundryApplicationProperties);
  }

  @Bean
  @ConditionalOnMissingBean
  public CloudFoundryApplicationFactory applicationFactory(InstanceProperties instance,
                               ManagementServerProperties management,
                               ServerProperties server,
                               PathMappedEndpoints pathMappedEndpoints,
                               WebEndpointProperties webEndpoint,
                               MetadataContributor metadataContributor,
                               CloudFoundryApplicationProperties cfApplicationProperties) {
    return new CloudFoundryApplicationFactory(instance, management, server, pathMappedEndpoints, webEndpoint,
      metadataContributor, cfApplicationProperties);
  }
}

代码示例来源：origin: org.apache.camel/camel-spring-cloud-netflix

@Configuration
@ConditionalOnBean(CamelAutoConfiguration.class)
@AutoConfigureAfter({ CamelAutoConfiguration.class, CamelCloudAutoConfiguration.class,  RibbonAutoConfiguration.class })
@Conditional(CamelCloudNetflixAutoConfiguration.Condition.class)
public class CamelCloudNetflixAutoConfiguration {

  // *******************************
  // Condition
  // *******************************

  public static class Condition extends GroupCondition {
    public Condition() {
      super(
        "camel.cloud",
        "camel.cloud.netflix"
      );
    }
  }
}

代码示例来源：origin: spring-projects/spring-framework

@Conditional(RegisterBeanPhaseCondition.class)
public static class RegisterBeanPhaseConditionConfiguration extends BaseConfiguration {
}

代码示例来源：origin: spring-projects/spring-security-oauth2-boot

public static boolean matches(ConditionContext context) {
  Class<AuthorizationServerEndpointsConfigurationBeanCondition> type = AuthorizationServerEndpointsConfigurationBeanCondition.class;
  Conditional conditional = AnnotationUtils.findAnnotation(type,
      Conditional.class);
  StandardAnnotationMetadata metadata = new StandardAnnotationMetadata(type);
  for (Class<? extends Condition> conditionType : conditional.value()) {
    Condition condition = BeanUtils.instantiateClass(conditionType);
    if (condition.matches(context, metadata)) {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: spring-cloud-incubator/spring-cloud-alibaba

@Configuration
@EnableConfigurationProperties
@Conditional(MigrateOnConditionMissingClass.class)
@ConditionalOnClass(name = "org.springframework.boot.web.context.WebServerInitializedEvent")
@ConditionalOnProperty(value = "spring.cloud.service-registry.auto-registration.enabled", matchIfMissing = true)
@ConditionalOnAnsEnabled
@AutoConfigureAfter(AutoServiceRegistrationAutoConfiguration.class)
public class AnsAutoConfiguration {

代码示例来源：origin: org.springframework.cloud/spring-cloud-function-stream

@Configuration
@Conditional(SinkOnlyCondition.class)
protected static class SinkConfiguration {
  @Autowired
  private StreamConfigurationProperties properties;
  public SinkConfiguration() {
  }
  @Bean
  public StreamListeningConsumerInvoker consumerInvoker(FunctionCatalog registry,
      FunctionInspector functionInspector,
      @Lazy CompositeMessageConverterFactory compositeMessageConverterFactory) {
    return new StreamListeningConsumerInvoker(registry, functionInspector,
        compositeMessageConverterFactory, properties.getSink().getName(),
        properties.isShared());
  }
}

代码示例来源：origin: spring-projects/spring-framework

@Configuration
@Conditional(NoBeanOneCondition.class)
static class BeanTwoConfiguration {
  @Bean
  public ExampleBean bean2() {
    return new ExampleBean();
  }
}

代码示例来源：origin: spring-cloud-incubator/spring-cloud-alibaba

@Configuration
@EnableConfigurationProperties
@Conditional(MigrateOnConditionClass.class)
@ConditionalOnProperty(value = "spring.cloud.service-registry.auto-registration.enabled", matchIfMissing = true)
@ConditionalOnAnsEnabled
public class MigrationAutoconfiguration {

  @Bean
  public MigrateServiceRegistry migrationManger(AnsProperties ansProperties,
      ApplicationContext applicationContext) {

    return new MigrateServiceRegistry(ansProperties, applicationContext);
  }

  @Bean
  public MigrateRefreshEventListener migrateRefreshEventListener(
      Environment environment,
      @Qualifier(value = "springClientFactory") NamedContextFactory namedContextFactory) {

    return new MigrateRefreshEventListener(environment, namedContextFactory);
  }
}

代码示例来源：origin: org.apache.camel/camel-spring-cloud-netflix

@Configuration
@AutoConfigureAfter(RibbonAutoConfiguration.class)
@AutoConfigureBefore(CamelSpringCloudServiceRegistryAutoConfiguration.class)
@Conditional(CamelCloudNetflixServiceLoadBalancerAutoConfiguration.Condition.class)
public class CamelCloudNetflixServiceLoadBalancerAutoConfiguration {

  @ConditionalOnBean(LoadBalancerClient.class)
  @ConditionalOnMissingBean
  @Bean("netflix-client-load-balancer-adapter")
  public CamelSpringCloudServiceLoadBalancer.LoadBalancerClientAdapter netflixClientLoadBalancerAdapter(List<ConversionService> conversionServices) {
    return client -> new CamelCloudNetflixServiceLoadBalancer(client, conversionServices);
  }

  // *******************************
  // Condition
  // *******************************

  public static class Condition extends GroupCondition {
    public Condition() {
      super(
        "camel.cloud",
        "camel.cloud.netflix"
      );
    }
  }
}

代码示例来源：origin: spring-projects/spring-framework

@Conditional(ParseConfigurationPhaseCondition.class)
public static class ParseConfigurationPhaseConditionConfiguration extends BaseConfiguration {
}

代码示例来源：origin: spring-cloud/spring-cloud-sleuth

@Configuration
@ConditionalOnMissingBean(name = ZipkinAutoConfiguration.SENDER_BEAN_NAME)
@Conditional(ZipkinSenderCondition.class)
@EnableConfigurationProperties(ZipkinSenderProperties.class)
class ZipkinRestTemplateSenderConfiguration {
  @Autowired
  ZipkinUrlExtractor extractor;