我正在将现有的Spring Boot 1.5应用程序升级到Spring Boot 2.0。该应用程序也利用Spring Integration xml。 尝试这样做时，Ehcache组件引起了问题。尝试将GET调用的响应添加到缓存时，它抛出异常：
路径为[]的上下文中的Servlet [dispatcherServlet]的Servlet.service（）抛出异常[请求处理失败；嵌套的异常是org.springframework.messaging.MessageHandlingException：消息处理程序[httpGatewayLookupSize]中发生错误；嵌套的异常是net.sf.ehcache.CacheException：配置copyOnRead或copyOnWrite时，存储区仅接受可序列化的值，failedMessage = GenericMessage [payload = {}，headers = {http_requestMethod = GET .....]]，其根本原因是
java.io.NotSerializableException：org.springframework.integration.support.MessageBuilder
使用Spring Boot 1.5可以很好地工作，并且插入到Cache中的value（XML Response）的类型为GenericMessage。 下面是整个堆栈跟踪：
java.io.NotSerializableException: org.springframework.integration.support.MessageBuilder
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
at net.sf.ehcache.store.compound.ReadWriteSerializationCopyStrategy.copyForWrite(ReadWriteSerializationCopyStrategy.java:58)
at net.sf.ehcache.store.compound.ReadWriteSerializationCopyStrategy.copyForWrite(ReadWriteSerializationCopyStrategy.java:35)
at net.sf.ehcache.store.CopyStrategyHandler.copyElementForWriteIfNeeded(CopyStrategyHandler.java:84)
at net.sf.ehcache.store.AbstractCopyingCacheStore.put(AbstractCopyingCacheStore.java:78)
at net.sf.ehcache.store.CopyingCacheStore.put(CopyingCacheStore.java:29)
at net.sf.ehcache.Cache.putInternal(Cache.java:1616)
at net.sf.ehcache.Cache.put(Cache.java:1542)
at net.sf.ehcache.Cache.put(Cache.java:1507)
at org.springframework.cache.ehcache.EhCacheCache.put(EhCacheCache.java:128)
at org.springframework.cache.interceptor.AbstractCacheInvoker.doPut(AbstractCacheInvoker.java:87)
at org.springframework.cache.interceptor.CacheAspectSupport$CachePutRequest.apply(CacheAspectSupport.java:783)
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:400)
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:316)
at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy96.handleRequestMessage(Unknown Source)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.doInvokeAdvisedRequestHandler(AbstractReplyProducingMessageHandler.java:127)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:112)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:158)
at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)
at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:132)
at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:105)
at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:73)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:445)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:394)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:160)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47)
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:108)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:426)
at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:336)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:227)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:115)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:158)
at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)
at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:132)
at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:105)
at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:73)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:445)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181)
at org.springframework.messaging.core.GenericMessagingTemplate.doSendAndReceive(GenericMessagingTemplate.java:227)
at org.springframework.messaging.core.GenericMessagingTemplate.doSendAndReceive(GenericMessagingTemplate.java:47)
at org.springframework.messaging.core.AbstractMessagingTemplate.sendAndReceive(AbstractMessagingTemplate.java:45)
at org.springframework.integration.core.MessagingTemplate.sendAndReceive(MessagingTemplate.java:97)
at org.springframework.integration.gateway.MessagingGatewaySupport.doSendAndReceive(MessagingGatewaySupport.java:497)
at org.springframework.integration.gateway.MessagingGatewaySupport.sendAndReceiveMessage(MessagingGatewaySupport.java:465)
at org.springframework.integration.http.inbound.HttpRequestHandlingEndpointSupport.actualDoHandleRequest(HttpRequestHandlingEndpointSupport.java:363)
at org.springframework.integration.http.inbound.HttpRequestHandlingEndpointSupport.doHandleRequest(HttpRequestHandlingEndpointSupport.java:255)
at org.springframework.integration.http.inbound.HttpRequestHandlingMessagingGateway.handleRequest(HttpRequestHandlingMessagingGateway.java:105)
at org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:53)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:155)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:123)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
我是否需要明确地投放响应才能使其正常工作？
我具有的 CacheInterceptor实现：
private MethodInterceptor createGatewayInterceptor(String cacheName) {
CacheInterceptor interceptor = new CacheInterceptor();
interceptor.setCacheManager(cacheManager());
NameMatchCacheOperationSource source = new NameMatchCacheOperationSource();
CacheableOperation.Builder operationBuilder = new CacheableOperation.Builder();
operationBuilder.setCacheName(cacheName);
source.addCacheMethod("handle*Message", Collections.singleton(operationBuilder.build()));
interceptor.setCacheOperationSources(source);
interceptor.setKeyGenerator((target, method, params) -> ((Message) params[0]).getHeaders().get(HEADER_CACHEKEY));
return interceptor;
}
DSL缓存实现：
adviceChain.add(eternalCacheAdvice);
adviceChain.add(genericMessageAdvice);
handler.setAdviceChain(adviceChain);
return handler;
@Bean
public MethodInterceptor cacheAdvice() {
return createGatewayInterceptor(TWENTY_FOUR_HOUR_CACHE);
}
@Bean
public MethodInterceptor eternalCacheAdvice() {
return createGatewayInterceptor(ETERNAL_CACHE);
}
@Bean
public MethodInterceptor genericMessageAdvice(){
return invocation -> ((MessageBuilder<?>) invocation.proceed()).build();
}
@Bean
public MethodInterceptor genericXMLMessageAdvice(){
return invocation -> ((MessageBuilder<?>) invocation.proceed()).build();
}
XML建议链：
<int-http:request-handler-advice-chain>
<ref bean="genericXMLMessageAdvice" />
<ref bean="cacheAdvice" />
</int-http:request-handler-advice-chain>
答案 0 :(得分：1)
对于某些内部优化，许多现成的Spring Integration组件现在在生成回复之前返回*.js。这是用额外的标题丰富目标回复消息所必需的。
看起来MessageBuilder执行CacheInterceptor广告试图将结果直接用于缓存。
考虑通过以下简单的实现在配置的invocation.proceed()之前添加一个MethodInterceptor ：
CacheInterceptor因此，您的invocation -> ((MessageBuilder<?>) invocation.proceed()).build()
将像以前一样获得预期的CacheInterceptor。
顺便说一句，我们有一个关于缓存这n个Spring集成的PR：https://github.com/spring-projects/spring-integration/pull/2105。随时在此分享您的经验，以便它可能提供即用型的支持。