错误消息：

2019-10-08 14:48:16.703  WARN o.s.s.o.p.c.JdbcClientDetailsService     : Could not decode JSON for additional information: BaseClientDetails [clientId=clientIdPassword, clientSecret=$2a$11$jOA21o3tg9FO.nUVIsurbO3JzMj/yr8kw9p741siUNzEkRtuq9DyG, scope=[read, write, trust], resourceIds=[], authorizedGrantTypes=[password, authorization_code, refresh_token], registeredRedirectUris=[http://www.baidu.com/], authorities=[ROLE_USER], accessTokenValiditySeconds=7200, refreshTokenValiditySeconds=5184000, additionalInformation={}]

java.io.EOFException: No content to map to Object due to end of input

    at org.codehaus.jackson.map.ObjectMapper._initForReading(ObjectMapper.java:2775)

    at org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2718)

    at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1863)

    at org.springframework.security.oauth2.provider.client.JdbcClientDetailsService$JacksonMapper.read(JdbcClientDetailsService.java:309)

    at org.springframework.security.oauth2.provider.client.JdbcClientDetailsService$ClientDetailsRowMapper.mapRow(JdbcClientDetailsService.java:268)

    at org.springframework.security.oauth2.provider.client.JdbcClientDetailsService$ClientDetailsRowMapper.mapRow(JdbcClientDetailsService.java:251)

    at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93)

    at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60)

    at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:703)

    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:639)

    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:690)

    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:722)

    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:732)

    at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:806)

    at org.springframework.security.oauth2.provider.client.JdbcClientDetailsService.loadClientByClientId(JdbcClientDetailsService.java:119)

    at sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:498)

    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)

    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)

    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)

    at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)

    at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)

    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)

    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)

    at com.sun.proxy.$Proxy88.loadClientByClientId(Unknown Source)

    at org.springframework.security.oauth2.provider.token.AbstractTokenGranter.grant(AbstractTokenGranter.java:60)

    at org.springframework.security.oauth2.provider.CompositeTokenGranter.grant(CompositeTokenGranter.java:38)

    at org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer$4.grant(AuthorizationServerEndpointsConfigurer.java:583)

    at org.springframework.security.oauth2.provider.endpoint.TokenEndpoint.postAccessToken(TokenEndpoint.java:132)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:498)

    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)

    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)

    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)

    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:849)

    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:760)

    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)

    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)

    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)

    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)

    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

    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 com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)

    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)

    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:215)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)

    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)

    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)

    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)

    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)

    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.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)

    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:1142)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

    at java.lang.Thread.run(Thread.java:745)

根据错消息定位到 JdbcClientDetailsService.java 这个类

查看源码：

开调试：

发现是查询数据第10个字段为空，

查看数据库果然 additional_information 字段都是空的。然后在数据库中先添加了测试字符串，发现还是报同样的错误。

最后百度+google终于在网址找到了下面这两篇文章。

1.根据这篇文章里的介绍这是一个预留的字段 https://blog.csdn.net/u011676300/article/details/84390988 

 2. Spring OAuth2：无法从ClientDetailsS​​ervice获取其他信息

终于解决了!!

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