我有一个使用 Redis 的 Spring Boot API。我试图涵盖这样的情况：当 Redis 由于某种原因出现故障时，我能够处理它，更重要的是再次从缓存中恢复并提供服务。
对于上下文，我有一个服务层方法，它从第三方 API 获取数据。我已经在这个方法中添加了@Cacheable注释。
我还创建了一个 CustomCacheErrorHandler
mport org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cache.Cache;
import org.springframework.cache.interceptor.CacheErrorHandler;
import org.springframework.data.redis.RedisConnectionFailureException;
public class CustomCacheErrorHandler implements CacheErrorHandler {
private static final Logger logger = LoggerFactory.getLogger(CustomCacheErrorHandler.class);
@Override
public void handleCacheGetError(RuntimeException exception, Cache cache, Object key) {
if (exception instanceof RedisConnectionFailureException) {
logger.error("Failed to get data from cache. Falling back to NoOpCacheManager.", exception);
return;
}
// Handle other cache get errors
logger.error("Error occurred while getting data from cache: " + exception.getMessage(), exception);
}
@Override
public void handleCachePutError(RuntimeException exception, Cache cache, Object key, Object value) {
if (exception instanceof RedisConnectionFailureException) {
logger.error("Failed to put data into cache. Falling back to NoOpCacheManager.", exception);
return;
}
// Handle other cache put errors
logger.error("Error occurred while putting data into cache: " + exception.getMessage(), exception);
}
@Override
public void handleCacheEvictError(RuntimeException exception, Cache cache, Object key) {
// Handle cache evict errors
logger.error("Error occurred while evicting data from cache: " + exception.getMessage(), exception);
}
@Override
public void handleCacheClearError(RuntimeException exception, Cache cache) {
// Handle cache clear errors
logger.error("Error occurred while clearing cache: " + exception.getMessage(), exception);
}
}
还有 RedisConfig
@Configuration
public class RedisConfig implements CachingConfigurer {
private static final Logger logger = LoggerFactory.getLogger(RedisConfig.class);
@Value("${spring.data.redis.host}")
private String redisHost;
@Value("${spring.data.redis.port}")
private int redisPort;
@Value("${spring.data.redis.database}")
private int redisDatabase;
@Bean
@ConditionalOnMissingBean(CacheManager.class)
public CacheManager fallbackCacheManager() {
return new NoOpCacheManager();
}
@Bean
public RedisConnectionFactory redisConnectionFactory() {
RedisStandaloneConfiguration redisConfig = new RedisStandaloneConfiguration();
redisConfig.setHostName(redisHost); // Set the Redis server host
redisConfig.setPort(redisPort); // Set the Redis server port
redisConfig.setDatabase(redisDatabase);
LettuceClientConfiguration clientConfig = LettuceClientConfiguration.builder()
.clientOptions(ClientOptions.builder()
.socketOptions(SocketOptions.builder()
.connectTimeout(Duration.ofSeconds(5)) // Set the connection timeout here
.build())
.build())
.build();
return new LettuceConnectionFactory(redisConfig, clientConfig);
}
@Bean
@Primary
public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
RedisCacheManager redisCacheManager = null;
try {
redisCacheManager = RedisCacheManager.builder(redisConnectionFactory)
.cacheDefaults(cacheConfiguration())
.build();
} catch (Exception e) {
logger.error("Failed to create Redis cache manager. Falling back to NoOpCacheManager.", e);
}
if (redisCacheManager != null) {
CompositeCacheManager cacheManager = new CompositeCacheManager(redisCacheManager, fallbackCacheManager());
cacheManager.setFallbackToNoOpCache(true);
return cacheManager;
} else {
return fallbackCacheManager();
}
}
@Bean
public RedisCacheConfiguration cacheConfiguration() {
return RedisCacheConfiguration.defaultCacheConfig()
.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
}
@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
redisTemplate.setConnectionFactory(redisConnectionFactory);
redisTemplate.setDefaultSerializer(new GenericJackson2JsonRedisSerializer());
return redisTemplate;
}
@Bean
public CacheErrorHandler cacheErrorHandler() {
return new CustomCacheErrorHandler();
}
发生的情况是，如果 Redis 宕机，我的 API 会生成 500，日志中包含以下内容：
2023-08-19T16:46:08.027+01:00 INFO 24125 --- [xecutorLoop-1-8] i.l.core.protocol.ConnectionWatchdog : Reconnecting, last destination was localhost/<unresolved>:6379
2023-08-19T16:46:08.031+01:00 WARN 24125 --- [ioEventLoop-6-8] i.l.core.protocol.ConnectionWatchdog : Cannot reconnect to [localhost/<unresolved>:6379]: Connection refused: localhost/127.0.0.1:6379
2023-08-19T16:46:16.327+01:00 INFO 24125 --- [ecutorLoop-1-10] i.l.core.protocol.ConnectionWatchdog : Reconnecting, last destination was localhost/<unresolved>:6379
2023-08-19T16:46:16.334+01:00 WARN 24125 --- [ioEventLoop-6-9] i.l.core.protocol.ConnectionWatchdog : Cannot reconnect to [localhost/<unresolved>:6379]: Connection refused: localhost/127.0.0.1:6379
2023-08-19T16:46:32.724+01:00 INFO 24125 --- [xecutorLoop-1-3] i.l.core.protocol.ConnectionWatchdog : Reconnecting, last destination was localhost/<unresolved>:6379
2023-08-19T16:46:32.728+01:00 WARN 24125 --- [oEventLoop-6-10] i.l.core.protocol.ConnectionWatchdog : Cannot reconnect to [localhost/<unresolved>:6379]: Connection refused: localhost/127.0.0.1:6379
2023-08-19T16:47:01.153+01:00 ERROR 24125 --- [nio-8080-exec-7] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.springframework.dao.QueryTimeoutException: Redis command timed out] with root cause
io.lettuce.core.RedisCommandTimeoutException: Command timed out after 1 minute(s)
at io.lettuce.core.internal.ExceptionFactory.createTimeoutException(ExceptionFactory.java:59) ~[lettuce-core-6.2.4.RELEASE.jar:6.2.4.RELEASE]
at io.lettuce.core.internal.Futures.awaitOrCancel(Futures.java:246) ~[lettuce-core-6.2.4.RELEASE.jar:6.2.4.RELEASE]
at io.lettuce.core.LettuceFutures.awaitOrCancel(LettuceFutures.java:74) ~[lettuce-core-6.2.4.RELEASE.jar:6.2.4.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceConnection.await(LettuceConnection.java:959) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.connection.lettuce.LettuceConnection.lambda$doInvoke$4(LettuceConnection.java:818) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.connection.lettuce.LettuceInvoker$Synchronizer.invoke(LettuceInvoker.java:665) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.connection.lettuce.LettuceInvoker.just(LettuceInvoker.java:94) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.get(LettuceStringCommands.java:52) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.connection.DefaultedRedisConnection.get(DefaultedRedisConnection.java:284) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.cache.DefaultRedisCacheWriter.lambda$get$1(DefaultRedisCacheWriter.java:122) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.cache.DefaultRedisCacheWriter.execute(DefaultRedisCacheWriter.java:276) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.cache.DefaultRedisCacheWriter.get(DefaultRedisCacheWriter.java:122) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.data.redis.cache.RedisCache.lookup(RedisCache.java:86) ~[spring-data-redis-3.1.0.jar:3.1.0]
at org.springframework.cache.support.AbstractValueAdaptingCache.get(AbstractValueAdaptingCache.java:58) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.cache.interceptor.AbstractCacheInvoker.doGet(AbstractCacheInvoker.java:73) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.cache.interceptor.CacheAspectSupport.findInCaches(CacheAspectSupport.java:571) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.cache.interceptor.CacheAspectSupport.findCachedItem(CacheAspectSupport.java:536) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:402) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:345) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:64) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.0.9.jar:6.0.9]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750) ~[spring-aop-6.0.9.jar:6.0.9]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:702) ~[spring-aop-6.0.9.jar:6.0.9]
at com.project.availability.service.availability.AvailabilityService$$SpringCGLIB$$0.fetchAvailabilitySummary(<generated>) ~[main/:na]
at com.project.availability.controller.availability.AvailabilityController.fetchServiceAvailability(AvailabilityController.java:48) ~[main/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884) ~[spring-webmvc-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081) ~[spring-webmvc-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974) ~[spring-webmvc-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011) ~[spring-webmvc-6.0.9.jar:6.0.9]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914) ~[spring-webmvc-6.0.9.jar:6.0.9]
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[tomcat-embed-core-10.1.8.jar:6.0]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.0.9.jar:6.0.9]
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) ~[tomcat-embed-core-10.1.8.jar:6.0]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$FilterObservation$SimpleFilterObservation.lambda$wrap$1(ObservationFilterChainDecorator.java:477) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$AroundFilterObservation$SimpleAroundFilterObservation.lambda$wrap$1(ObservationFilterChainDecorator.java:338) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator.lambda$wrapSecured$0(ObservationFilterChainDecorator.java:80) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:126) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:131) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:85) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.oauth2.server.resource.web.authentication.BearerTokenAuthenticationFilter.doFilterInternal(BearerTokenAuthenticationFilter.java:128) ~[spring-security-oauth2-resource-server-6.1.0.jar:6.1.0]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:107) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:93) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:82) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:69) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:62) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:225) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.wrapFilter(ObservationFilterChainDecorator.java:238) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$AroundFilterObservation$SimpleAroundFilterObservation.lambda$wrap$0(ObservationFilterChainDecorator.java:321) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$ObservationFilter.doFilter(ObservationFilterChainDecorator.java:222) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.ObservationFilterChainDecorator$VirtualFilterChain.doFilter(ObservationFilterChainDecorator.java:135) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:233) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:191) ~[spring-security-web-6.1.0.jar:6.1.0]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:352) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:268) ~[spring-web-6.0.9.jar:6.0.9]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.springframework.web.filter.ServerHttpObservationFilter.doFilterInternal(ServerHttpObservationFilter.java:109) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.0.9.jar:6.0.9]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.9.jar:6.0.9]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-10.1.8.jar:10.1.8]
at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]
如上所述，我希望能够回退到非缓存版本，即调用我的第三方 API。
任何人都可以找出为什么这种情况没有发生。我想通过定义
CompositeCacheManager cacheManager = new CompositeCacheManager(redisCacheManager, fallbackCacheManager());
cacheManager.setFallbackToNoOpCache(true);
它会回落吗？
提前致谢
我认为你误解了 Spring 的
CompositeCacheManager当缓存提供程序不可访问（或不可用）时，
CompositeCacheManagerCacheManager(s)Cachenull注意：默认情况下，Spring Data Redis 将 Redis 缓存提供程序配置为“默认允许创建运行时缓存”。
在您的情况下，Spring 的缓存基础设施确定（在正常情况下），Redis 可以并且可能会返回可缓存操作的缓存值，但会抛出异常，因为您的 Redis 服务器无法访问，这会阻止可缓存基础设施继续进行复合材料。
因此，您需要配置一个
CacheErrorHandler具体请注意：
配置了正确的“通常，无法从缓存中检索具有给定 id 的对象可以通过不抛出此类异常来透明地作为缓存未命中进行管理。”
CacheErrorHandler
，您甚至不需要
NoOpCacheManager。您应该适当地处理底层缓存提供程序（例如Redis）抛出的异常，并决定如何相对于缓存处理这些
Exceptions
。