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我是新来的keycloak和spring。我试图使用keycloak管理的客户端来创建这样在我的弹簧引导工程用户：Keycloak管理客户端：无法找到内容类型应用程序/ json的MessageBodyReader
Keycloak kc = Keycloak.getInstance(
"http://localhost:8080/auth",
"master", // the realm to log in to
"admin", "password", // the user
"admin-cli");
CredentialRepresentation credential = new CredentialRepresentation();
credential.setType(CredentialRepresentation.PASSWORD);
credential.setValue("test123");
UserRepresentation user = new UserRepresentation();
user.setUsername("testuser");
user.setFirstName("Test");
user.setLastName("User");
user.setCredentials(Arrays.asList(credential));
kc.realm("master").users().create(user);
，但我不断收到此错误：
Exception in thread "main" 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:158)
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:107)
at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76)
at com.sun.proxy.$Proxy18.grantToken(Unknown Source)
at org.keycloak.admin.client.token.TokenManager.grantToken(TokenManager.java:89)
at org.keycloak.admin.client.token.TokenManager.getAccessToken(TokenManager.java:69)
at org.keycloak.admin.client.token.TokenManager.getAccessTokenString(TokenManager.java:64)
at org.keycloak.admin.client.resource.BearerAuthFilter.filter(BearerAuthFilter.java:52)
at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:443)
at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:105)
at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76)
at com.sun.proxy.$Proxy26.create(Unknown Source)
at me.phuongtm.KeycloakAdminClientDemoApplication.main(KeycloakAdminClientDemoApplication.java:68)
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.jaxrs.ClientReaderInterceptorContext.throwReaderNotFound(ClientReaderInterceptorContext.java:42)
at org.jboss.resteasy.core.interception.jaxrs.AbstractReaderInterceptorContext.getReader(AbstractReaderInterceptorContext.java:80)
at org.jboss.resteasy.core.interception.jaxrs.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:53)
at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readFrom(ClientResponse.java:266)
at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readEntity(ClientResponse.java:196)
at org.jboss.resteasy.specimpl.BuiltResponse.readEntity(BuiltResponse.java:212)
at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.extractResult(ClientInvocation.java:122)
... 13 more
这似乎是一个问题与RESTEASY，所以我添加了resteasy-jackson2提供的keycloak文档建议，但没有运气。
这里是我的pom.xml依赖条件：
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-admin-client</artifactId>
<version>3.2.0.Final</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-client</artifactId>
<version>3.1.4.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-multipart-provider</artifactId>
<version>3.1.4.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jackson2-provider</artifactId>
<version>3.1.4.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
我花了几个小时，试图找到答案，我甚至试过这种MatteoM的解决方案：
https://stackoverflow.com/a/40462534/7441720
，但没有运气。
我感谢所有帮助我能
UPDATE：
这似乎是供应商的问题：
10:06:45.027 [main] WARN org.jboss.resteasy.resteasy_jaxrs.i18n -
RESTEASY002145: NoClassDefFoundError: Unable to load builtin provider
org.jboss.resteasy.plugins.providers.jackson.ResteasyJackson2Provider from
jar:file:/C:/Users/hp/.m2/repository/org/jboss/resteasy/resteasy-jackson2-
provider/3.1.4.Final/resteasy-jackson2-provider-3.1.4.Final.jar!/META-
INF/services/javax.ws.rs.ext.Providers
我似乎无法找到解决的办法，我查了罐子和类
ResteasyJackson2Provider
存在！
UPDATE：
从我可以告诉，这是与依赖条件的问题，我切换到摇篮（但它应该对Maven以及工作），我的新的依赖是：
compile('org.keycloak:keycloak-admin-client:3.2.1.Final')
compile('org.jboss.resteasy:resteasy-client:3.0.14.Final')
compile('org.jboss.resteasy:resteasy-multipart-provider:3.0.14.Final')
compile('org.jboss.resteasy:resteasy-jackson2-provider:3.0.14.Final')
compile('org.jboss.resteasy:resteasy-jaxb-provider:3.0.14.Final')
compile('org.jboss.resteasy:resteasy-jettison-provider:3.0.14.Final')
compile('org.jboss.spec.javax.ws.rs:jboss-jaxrs-api_2.0_spec:1.0.0.Final')
至于keycloak，我创建了一个配置类与豆类：
@Bean
public Keycloak keycloakBeanConfig(){
return KeycloakBuilder.builder().serverUrl(keycloakUrl).realm(realm) //
.grantType(OAuth2Constants.CLIENT_CREDENTIALS).clientId(clientId) //
.clientSecret(clientSecret)
.build();
}
使用RestEasy的客户端，即“3.0.14.Final”正确的版本，按照依赖页https://mvnrepository.com/artifact/org.keycloak/keycloak-admin -client/3.2.0.Final – ravthiru
您是否找到解决方案？我面临着完全相同的问题！ – Zok