Tomcat-KeyCloak：FAIL -Deployed应用程序在上下文路径但上下文无法启动

时间：2018-04-24 15:29:01

标签： java authentication tomcat tomcat7 keycloak

我尝试使用KeyCloak 4.0.0（部署在服务器2上）对Tomcat7 webapp（服务器1）进行身份验证

我已按照here列出的说明进行操作，但每次尝试在Tomcat（服务器1）上开发WAR时出现此错误：

FAIL - Deployed application at context path /my _path but context failed to start

对应于Tomcat中的此异常：

Apr 24, 2018 5:07:09 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap
java.lang.RuntimeException: Unable to instantiate MessageBodyReader
    at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:760)
    at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:742)
    at org.jboss.resteasy.spi.ResteasyDeployment.registerProvider(ResteasyDeployment.java:505)
    at org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:305)
    at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:225)
    at org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap.contextInitialized(ResteasyBootstrap.java:28)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5003)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5517)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1095)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:558)
    at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1747)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(Unknown Source)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(Unknown Source)
    at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1516)
    at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:739)
    at org.apache.catalina.manager.ManagerServlet.doPut(ManagerServlet.java:457)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:653)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Illegal to inject a message body into a singleton into public org.codehaus.jackson.jaxrs.JacksonJsonProvider(org.codehaus.jackson.map.ObjectMapper,org.codehaus.jackson.jaxrs.Annotations[])
    at org.jboss.resteasy.core.MessageBodyParameterInjector.inject(MessageBodyParameterInjector.java:209)
    at org.jboss.resteasy.core.ConstructorInjectorImpl.injectableArguments(ConstructorInjectorImpl.java:63)
    at org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:129)
    at org.jboss.resteasy.spi.ResteasyProviderFactory.getProviderInstance(ResteasyProviderFactory.java:1038)
    at org.jboss.resteasy.spi.ResteasyProviderFactory.addMessageBodyReader(ResteasyProviderFactory.java:478)
    at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:756)
    ... 49 more

也许我的问题与此one有某种关联。

令我感到困惑的是，不这样的错误似乎依赖于我的WAR应用程序。无论我尝试在Tomcat上部署哪个WAR，我总是会遇到此错误，即使WAR不使用KeyCloak也是如此。我的意思是：即使我的WAR不包含任何＆＃34;安全约束＆＃34;元素也不是＆＃34;过滤＆＃34;并且＆＃34;角色名称＆＃34;，没有关于KeyCloak的其他东西（即我的所有页面都是公开的）， 部署它时我总是遇到FAIL错误。

这似乎与将 keycloak-tomcat7-adapter-dist.zip JAR安装到Tomcat lib 目录有关，如图所示here。如果我只是从 lib 文件夹中删除所有这些JAR，那么我就解决了问题（当然在这种情况下我无法使用KeyCloak身份验证）。

我错过了什么（可能WAR和KeyCloak必须存在于同一个Tomcat服务器中），或者Keycloak tomcat 7适配器中是否有错误？

1 个答案:

答案 0 :(得分：0)

问题解决了！

在我的情况下，问题是由 RESTEasy库中的冲突产生的：我的WebApp的POM文件正在导入此版本的 resteasy-jackson-provider 库： 

<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxb-provider</artifactId>
<version>2.2.0.GA</version>

而KeyCloak Tomcat适配器正在使用这些JAR：

jackson-core-asl-1.9.9.jar
jackson-mapper-asl-1.9.9.jar
jackson-xc-1.9.9.jar

从here我了解到2.2.0.GA正在包装相同库的1.6.3版本。可能由于这个原因，我的类使用旧库（1.6.3）进行编译，然后使用较新版本的相同库（1.9.9，来自适配器）部署在Tomcat上，这会触发错误。

因此我浏览了一个 resteasy-jackson-provider 软件包，它正好捆绑了目标库的1.9.9版本，就像这个one一样，我解决了加载它们的问题。我的POM文件：

<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxb-provider</artifactId>
<version>2.3.10.Final</version>

希望这可以帮助别人！

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