所以我有一个带有Zuul的网关，用户可以在其中登录，使用Spring Session，还可以将用户认证到rest api（这是一个不同的项目）中。
在网关中，我创建了一个自定义UserDetails com.gateway.CustomUserDetails来保存用户信息。
问题是当对api发出请求时，例如/ user端点：
@GetMapping("/user")
public Map<String,Object> currentUser(Authentication auth){
Map<String,Object> user = new HashMap<>();
user.put("username", auth.getName());
user.put("roles", auth.getAuthorities());
return user;
}
我收到以下错误：
org.springframework.core.convert.ConversionFailedException: Failed to convert from type [byte[]] to type [java.lang.Object] for value '[value omitted for brevity]'; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is org.springframework.core.NestedIOException: Failed to deserialize object type; nested exception is java.lang.ClassNotFoundException: com.gateway.CustomUserDetails
at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:46) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:191) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.session.jdbc.JdbcOperationsSessionRepository.getBlobAsObject(JdbcOperationsSessionRepository.java:672) ~[spring-session-jdbc-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.jdbc.JdbcOperationsSessionRepository.access$1300(JdbcOperationsSessionRepository.java:135) ~[spring-session-jdbc-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.jdbc.JdbcOperationsSessionRepository$SessionResultSetExtractor.extractData(JdbcOperationsSessionRepository.java:901) ~[spring-session-jdbc-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.jdbc.JdbcOperationsSessionRepository$SessionResultSetExtractor.extractData(JdbcOperationsSessionRepository.java:880) ~[spring-session-jdbc-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:679) ~[spring-jdbc-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:617) ~[spring-jdbc-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:669) ~[spring-jdbc-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:700) ~[spring-jdbc-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.session.jdbc.JdbcOperationsSessionRepository.lambda$findById$1(JdbcOperationsSessionRepository.java:468) ~[spring-session-jdbc-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.session.jdbc.JdbcOperationsSessionRepository.findById(JdbcOperationsSessionRepository.java:467) ~[spring-session-jdbc-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.jdbc.JdbcOperationsSessionRepository.findById(JdbcOperationsSessionRepository.java:135) ~[spring-session-jdbc-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.getRequestedSession(SessionRepositoryFilter.java:380) ~[spring-session-core-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.getSession(SessionRepositoryFilter.java:306) ~[spring-session-core-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.getSession(SessionRepositoryFilter.java:201) ~[spring-session-core-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:241) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.security.web.context.HttpSessionSecurityContextRepository.loadContext(HttpSessionSecurityContextRepository.java:113) ~[spring-security-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:100) ~[spring-security-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) ~[spring-security-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) ~[spring-security-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:151) ~[spring-session-core-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:81) ~[spring-session-core-2.1.3.RELEASE.jar:2.1.3.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) [tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.14.jar:9.0.14]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_121]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.14.jar:9.0.14]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is org.springframework.core.NestedIOException: Failed to deserialize object type; nested exception is java.lang.ClassNotFoundException: com.gateway.CustomUserDetails
at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:78) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:36) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.convert.support.GenericConversionService$ConverterAdapter.convert(GenericConversionService.java:385) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:40) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
... 65 more
Caused by: org.springframework.core.NestedIOException: Failed to deserialize object type; nested exception is java.lang.ClassNotFoundException: com.gateway.CustomUserDetails
at org.springframework.core.serializer.DefaultDeserializer.deserialize(DefaultDeserializer.java:75) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:73) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:36) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.convert.support.GenericConversionService$ConverterAdapter.convert(GenericConversionService.java:385) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:40) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
... 65 more
Caused by: java.lang.ClassNotFoundException: com.gateway.CustomUserDetails
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_121]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_121]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[?:1.8.0_121]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_121]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_121]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_121]
at org.springframework.util.ClassUtils.forName(ClassUtils.java:275) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.ConfigurableObjectInputStream.resolveClass(ConfigurableObjectInputStream.java:76) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1819) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1713) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1986) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) ~[?:1.8.0_121]
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) ~[?:1.8.0_121]
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) ~[?:1.8.0_121]
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422) ~[?:1.8.0_121]
at org.springframework.core.serializer.DefaultDeserializer.deserialize(DefaultDeserializer.java:72) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:73) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:36) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.convert.support.GenericConversionService$ConverterAdapter.convert(GenericConversionService.java:385) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:40) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
... 65 more
我的解决方法是在其余api项目中添加相同的类com.gateway.CustomUserDetails。
为什么会引发此异常，我应该注册某种类型的主体提取程序吗？