The requested resource is not available.錯誤解決方法
阿新 • • 發佈:2019-01-22
一、報錯背景
在Tomcat啟動的過程當中,在後臺執行正常,看不出任何的問題,但是web介面,卻顯示這樣的錯誤:
初步認定為web介面沒有啟動起來。
二、報錯分析
具體的資訊需要檢視啟動日誌,肯定會有失敗的日誌。具體的目錄:/apache-tomcat-7.0.62/logs/
catalina.當天日期.log
這裡面會顯示詳細的報錯資訊,如:
May 14, 2018 2:41:50 PM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deploying configuration descriptor /etl/apache-tomcat-7.0.62/conf/Catalina/localhost/etlweb.xml May 14, 2018 2:41:56 PM org.apache.catalina.core.ContainerBase addChildInternal SEVERE: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/etlweb]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) 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.deployDescriptor(HostConfig.java:677) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1912) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: java.lang.IllegalStateException: Unable to complete the scan for annotations for web application [/etlweb] due to a StackOverflowError. Possible root causes include a too low setting for -Xss and illegal cyclic inheritance dependencies. The class hierarchy being processed was [org.bouncycastle.asn1.ASN1Boolean->org.bouncycastle.asn1.DERBoolean->org.bouncycastle.asn1.ASN1Boolean] at org.apache.catalina.startup.ContextConfig.checkHandlesTypes(ContextConfig.java:2144) at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2090) at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1965) at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1931) at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1916) at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1330) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:889) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:386) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5416) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 10 more May 14, 2018 2:41:56 PM org.apache.catalina.startup.HostConfig deployDescriptor SEVERE: Error deploying configuration descriptor /etl/apache-tomcat-7.0.62/conf/Catalina/localhost/etlweb.xml java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/etlweb]] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:904) 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.deployDescriptor(HostConfig.java:677) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1912) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744)
這個報錯大概是因為啟動Tomcat時,載入的jar包過多,導致啟動失敗。
三、解決辦法
進入目錄:/etl/apache-tomcat-7.0.62/conf中,找到catalina.properties檔案,開啟
# Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # # List of comma-separated packages that start with or equal this string # will cause a security exception to be thrown when # passed to checkPackageAccess unless the # corresponding RuntimePermission ("accessClassInPackage."+package) has # been granted. package.access=sun.,org.apache.catalina.,org.apache.coyote.,org.apache.jasper.,\ org.apache.naming.resources.,org.apache.tomcat. # # List of comma-separated packages that start with or equal this string # will cause a security exception to be thrown when # passed to checkPackageDefinition unless the # corresponding RuntimePermission ("defineClassInPackage."+package) has # been granted. # # by default, no packages are restricted for definition, and none of # the class loaders supplied with the JDK call checkPackageDefinition. # package.definition=sun.,java.,org.apache.catalina.,org.apache.coyote.,\ org.apache.jasper.,org.apache.naming.,org.apache.tomcat. # # # List of comma-separated paths defining the contents of the "common" # classloader. Prefixes should be used to define what is the repository type. # Path may be relative to the CATALINA_HOME or CATALINA_BASE path or absolute. # If left as blank,the JVM system loader will be used as Catalina's "common" # loader. # Examples: # "foo": Add this folder as a class repository # "foo/*.jar": Add all the JARs of the specified folder as class # repositories # "foo/bar.jar": Add bar.jar as a class repository common.loader=${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar # # List of comma-separated paths defining the contents of the "server" # classloader. Prefixes should be used to define what is the repository type. # Path may be relative to the CATALINA_HOME or CATALINA_BASE path or absolute. # If left as blank, the "common" loader will be used as Catalina's "server" # loader. # Examples: # "foo": Add this folder as a class repository # "foo/*.jar": Add all the JARs of the specified folder as class # repositories # "foo/bar.jar": Add bar.jar as a class repository server.loader= # # List of comma-separated paths defining the contents of the "shared" # classloader. Prefixes should be used to define what is the repository type. # Path may be relative to the CATALINA_BASE path or absolute. If left as blank, # the "common" loader will be used as Catalina's "shared" loader. # Examples: # "foo": Add this folder as a class repository # "foo/*.jar": Add all the JARs of the specified folder as class # repositories # "foo/bar.jar": Add bar.jar as a class repository # Please note that for single jars, e.g. bar.jar, you need the URL form # starting with file:. shared.loader= # List of JAR files that should not be scanned using the JarScanner # functionality. This is typically used to scan JARs for configuration # information. JARs that do not contain such information may be excluded from # the scan to speed up the scanning process. This is the default list. JARs on # this list are excluded from all scans. Scan specific lists (to exclude JARs # from individual scans) follow this. The list must be a comma separated list of # JAR file names. # The JARs listed below include: # - Tomcat Bootstrap JARs # - Tomcat API JARs # - Catalina JARs # - Jasper JARs # - Tomcat JARs # - Common non-Tomcat JARs # - Test JARs (JUnit, Cobertura and dependencies) tomcat.util.scan.DefaultJarScanner.jarsToSkip=/ bootstrap.jar,commons-daemon.jar,tomcat-juli.jar,\ annotations-api.jar,el-api.jar,jsp-api.jar,servlet-api.jar,websocket-api.jar,\ catalina.jar,catalina-ant.jar,catalina-ha.jar,catalina-tribes.jar,\ jasper.jar,jasper-el.jar,ecj-*.jar,\ tomcat-api.jar,tomcat-util.jar,tomcat-coyote.jar,tomcat-dbcp.jar,\ tomcat-jni.jar,tomcat-spdy.jar,\ tomcat-i18n-en.jar,tomcat-i18n-es.jar,tomcat-i18n-fr.jar,tomcat-i18n-ja.jar,\ tomcat-juli-adapters.jar,catalina-jmx-remote.jar,catalina-ws.jar,\ tomcat-jdbc.jar,\ tools.jar,\ commons-beanutils*.jar,commons-codec*.jar,commons-collections*.jar,\ commons-dbcp*.jar,commons-digester*.jar,commons-fileupload*.jar,\ commons-httpclient*.jar,commons-io*.jar,commons-lang*.jar,commons-logging*.jar,\ commons-math*.jar,commons-pool*.jar,\ jstl.jar,taglibs-standard-spec-*.jar,\ geronimo-spec-jaxrpc*.jar,wsdl4j*.jar,\ ant.jar,ant-junit*.jar,aspectj*.jar,jmx.jar,h2*.jar,hibernate*.jar,httpclient*.jar,\ jmx-tools.jar,jta*.jar,log4j.jar,log4j-1*.jar,mail*.jar,slf4j*.jar,\ xercesImpl.jar,xmlParserAPIs.jar,xml-apis.jar,\ junit.jar,junit-*.jar,hamcrest*.jar,org.hamcrest*.jar,ant-launcher.jar,\ cobertura-*.jar,asm-*.jar,dom4j-*.jar,icu4j-*.jar,jaxen-*.jar,jdom-*.jar,\ jetty-*.jar,oro-*.jar,servlet-api-*.jar,tagsoup-*.jar,xmlParserAPIs-*.jar,\ xom-*.jar # Additional JARs (over and above the default JARs listed above) to skip when # scanning for Servlet 3.0 pluggability features. These features include web # fragments, annotations, SCIs and classes that match @HandlesTypes. The list # must be a comma separated list of JAR file names. org.apache.catalina.startup.ContextConfig.jarsToSkip= # Additional JARs (over and above the default JARs listed above) to skip when # scanning for TLDs. The list must be a comma separated list of JAR file names. org.apache.catalina.startup.TldConfig.jarsToSkip=tomcat7-websocket.jar # # String cache configuration. tomcat.util.buf.StringCache.byte.enabled=true #tomcat.util.buf.StringCache.char.enabled=true #tomcat.util.buf.StringCache.trainThreshold=500000 #tomcat.util.buf.StringCache.cacheSize=5000
在上面的配置中,找到:
tomcat.util.scan.DefaultJarScanner.jarsToSkip=/
將/改為",*"
tomcat.util.scan.DefaultJarScanner.jarsToSkip=",*"
然後在重啟Tomcat即可解決問題。