RESTEASY003145：无法找到内容类型application / json的MessageBodyReader并键入class org.keycloak.representations.AccessTokenResponse

我正在尝试测试Keycloak REST API。 Instaled版本2.1.0.Final。 我可以通过浏览器使用SSL访问管理员而不会出现问题。

我正在使用上面的代码：

Keycloak keycloakClient = KeycloakBuilder.builder() .serverUrl("https://keycloak.intra.rps.com.br/auth") .realm("testrealm") .username("development") .password("development") .clientId("admin-cli") .resteasyClient(new ResteasyClientBuilder().connectionPoolSize(10).build()) .build(); List rr = keycloakClient.realms().findAll(); 

并得到错误：

 javax.ws.rs.ProcessingException: RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse javax.ws.rs.client.ResponseProcessingException: javax.ws.rs.ProcessingException: RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.extractResult(ClientInvocation.java:141) at org.jboss.resteasy.client.jaxrs.internal.proxy.extractors.BodyEntityExtractor.extractEntity(BodyEntityExtractor.java:60) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:104) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76) at com.sun.proxy.$Proxy20.grantToken(Unknown Source) at org.keycloak.admin.client.token.TokenManager.grantToken(TokenManager.java:85) at org.keycloak.admin.client.token.TokenManager.getAccessToken(TokenManager.java:65) at org.keycloak.admin.client.token.TokenManager.getAccessTokenString(TokenManager.java:60) at org.keycloak.admin.client.resource.BearerAuthFilter.filter(BearerAuthFilter.java:52) at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:413) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:102) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76) at com.sun.proxy.$Proxy22.findAll(Unknown Source) at br.com.rps.itsm.sd.SgpKeycloakClient.doGet(SgpKeycloakClient.java:71) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: javax.ws.rs.ProcessingException: RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse at org.jboss.resteasy.core.interception.ClientReaderInterceptorContext.throwReaderNotFound(ClientReaderInterceptorContext.java:42) at org.jboss.resteasy.core.interception.AbstractReaderInterceptorContext.getReader(AbstractReaderInterceptorContext.java:75) at org.jboss.resteasy.core.interception.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:52) at org.jboss.resteasy.plugins.interceptors.encoding.GZIPDecodingInterceptor.aroundReadFrom(GZIPDecodingInterceptor.java:59) at org.jboss.resteasy.core.interception.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:55) at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readFrom(ClientResponse.java:251) at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readEntity(ClientResponse.java:181) at org.jboss.resteasy.specimpl.BuiltResponse.readEntity(BuiltResponse.java:213) at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.extractResult(ClientInvocation.java:105) 

我添加了上面的依赖项，但没有解决我的问题：

   org.jboss.resteasy resteasy-client 3.0.19.Final   org.jboss.resteasy resteasy-jackson-provider 3.0.19.Final  

有什么线索吗？

Answer 1

我解决了!! 您必须将org.jboss.resteasy.plugins.providers.jackson.ResteasyJacksonProvider添加到META-INF / services / javax.ws.rs.ext.Providers文件中，然后运行您的可执行jar。

Answer 2

我使用依赖来解决这个问题

   org.jboss.resteasy resteasy-jackson2-provider 3.1.0.Final  

Answer 3

或者如果您使用代理创建客户端，那么最好在以下情况下初始化提供者工

  ResteasyProviderFactory instance=ResteasyProviderFactory.getInstance(); RegisterBuiltin.register(instance); instance.registerProvider(ResteasyJackson2Provider.class); 

Answer 4

添加德米特里为我指出的内容会导致以下警告：

 WARN: RESTEASY002155: Provider class org.jboss.resteasy.plugins.providers.jackson.ResteasyJackson2Provider is already registered. 2nd registration is being ignored. 

可能正如培根所说 ，只需添加依赖项即可自动注册提供程序：

   org.jboss.resteasy resteasy-jackson2-provider ${resteasy.version}