我正在尝试将OAuth2实现到我的Spring Boot应用程序中。使用密码授权调用/oauth/token时，我可以使用Basic auth对数据库使用用户名/密码进行身份验证。身份验证对象将加载到安全上下文中，并继续过滤。但是我注意到，OAuth2AuthenticationProcessingFilter进一步向下调用并清除安全上下文b / c没有找到OAuth承载令牌。这最终导致TokenEndpoint.postAccessToken方法的身份验证失败（例如/oauth/token）。
预计在OAuth2AuthenticationProcessingFilter来电期间会调用/oauth/token吗？如果没有，任何想法为什么？如果预计此问题的最佳修复/解决方法是什么，那么将OAuth2AuthenticationProcessingFilter上的无状态设置为false？不确定这是不是一个好主意......
一些相关信息，我正在使用xml配置进行Spring安全设置，其余使用JavaConfig。授权类型是/oauth/token电话上的密码。
非常感谢任何帮助。下面是一些关于我所看到的上下文的日志消息。
09/30/15 22:42:50.899 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.c.ClientCredentialsTokenEndpointFilter - Authentication success. Updating SecurityContextHolder to contain: org.springframework.security.oauth2.provider.OAuth2Authentication@9d98054f: Principal: testUser; Credentials: [PROTECTED]; Authenticated: true; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@b364: RemoteIpAddress: 0:0:0:0:0:0:0:1; SessionId: null; Granted Authorities: ROLE_USER
09/30/15 22:42:50.899 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.a.BearerTokenExtractor - Token not found in headers. Trying request parameters.
09/30/15 22:42:50.899 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.a.BearerTokenExtractor - Token not found in request parameters. Not an OAuth2 request.
09/30/15 22:42:50.899 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.a.OAuth2AuthenticationProcessingFilter - Clearing security context.
09/30/15 22:42:50.900 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.a.OAuth2AuthenticationProcessingFilter - No token in request, will continue chain.
09/30/15 22:42:50.900 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.a.BearerTokenExtractor - Token not found in headers. Trying request parameters.
09/30/15 22:42:50.900 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.a.BearerTokenExtractor - Token not found in request parameters. Not an OAuth2 request.
09/30/15 22:42:50.900 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.a.OAuth2AuthenticationProcessingFilter - No token in request, will continue chain.
09/30/15 22:42:50.934 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.e.FrameworkEndpointHandlerMapping - Looking up handler method for path /oauth/token
09/30/15 22:42:50.937 [http-nio-9931-exec-8] DEBUG o.s.s.o.p.e.FrameworkEndpointHandlerMapping - Returning handler method [public org.springframework.http.ResponseEntity<org.springframework.security.oauth2.common.OAuth2AccessToken> org.springframework.security.oauth2.provider.endpoint.TokenEndpoint.postAccessToken(java.security.Principal,java.util.Map<java.lang.String, java.lang.String>) throws org.springframework.web.HttpRequestMethodNotSupportedException]
09/30/15 22:42:50.958 [http-nio-9931-exec-8] INFO o.s.s.o.p.endpoint.TokenEndpoint - Handling error: InsufficientAuthenticationException, There is no client authentication. Try adding an appropriate authentication filter.
09/30/15 22:42:51.070 [http-nio-9931-exec-8] DEBUG o.s.s.w.a.ExceptionTranslationFilter - Chain processed normally
09/30/15 22:42:51.070 [http-nio-9931-exec-8] DEBUG o.s.s.w.c.SecurityContextPersistenceFilter - SecurityContextHolder now cleared, as request processing completed