Q&A
Spring boot2 + Gradleプロジェクトで作成したwarファイルをデプロイしてTomcat起動を行ったところエラーになりました。
eclipseで開発を行っており、Spring boot2 + Gradleプロジェクトで組み込みTomcatのローカル起動は行えますが、warファイルを配備したTmcat9サーバ起動が起動しません。
多分ですが、ルートコンテキストの設定に不備があると考えています。
■APサーバ環境：Tomcat9
■ルートコンテキスト設定
@Bean public WebServerFactoryCustomizer<TomcatServletWebServerFactory> cookieProcessorCustomizer() { return (factory) -> factory .addContextCustomizers((context) -> context.setCookieProcessor(new LegacyCookieProcessor())); }
Tomcat9環境で、LegacyCookieProcessorは使用できますか？
使用できないなら、置き換え方法を知りたいです。
ちなみに、ログは以下です。
■localhost.log
20-Jan-2022 17:08:50.889 情報 [main] org.apache.catalina.core.ApplicationContext.log 3 Spring WebApplicationInitializers detected on classpath 20-Jan-2022 17:09:08.489 情報 [main] org.apache.catalina.core.ApplicationContext.log Initializing Spring embedded WebApplicationContext 20-Jan-2022 17:09:38.898 重大 [main] org.apache.catalina.core.StandardContext.listenerStart クラス [org.springframework.web.context.ContextLoaderListener] のリスナインスタンスにコンテキスト初期化イベントを送信中の例外です java.lang.IllegalStateException: Cannot initialize context because there is already a root application context present - check whether you have multiple ContextLoader* definitions in your web.xml! at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:263) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4766) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5230) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:698) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:696) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1185) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1933) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1095) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:477) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1618) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:319) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423) at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:946) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:432) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:772) 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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:476) 20-Jan-2022 17:09:38.961 情報 [main] org.apache.catalina.core.ApplicationContext.log Closing Spring root WebApplicationContext 20-Jan-2022 17:09:39.532 情報 [main] org.apache.catalina.core.ApplicationContext.log Closing Spring root WebApplicationContext
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