异常: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]

本文介绍了解决SpringBoot应用中Tomcat启动失败的问题,通常原因是由于servlet-api jar包冲突导致。通过使用Maven命令定位冲突来源,并提供了一个具体的排除依赖的例子。

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Spring Boot 出现 Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]],即 Tomcat 启动失败。

原因:一般是 servlet-api jar 包冲突,因此可使用命令:

    mvn dependency:tree | grep servlet-api

查找哪个依赖依赖了 servlet-api jar 包,然后使用 exclusions 元素排除它。如:

<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-starter-eureka-server</artifactId>
  <version>1.4.4.RELEASE</version>
  <exclusions>
      <exclusion>
          <groupId>javax.servlet</groupId>
          <artifactId>servlet-api</artifactId>
      </exclusion>
  </exclusions>
</dependency>
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:939) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ... 6 common frames omitted Caused by: org.apache.catalina.LifecycleException: Failed to start component [Pipeline[StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[]]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5099) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 common frames omitted Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.authenticator.NonLoginAuthenticator[]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.StandardPipeline.startInternal(StandardPipeline.java:170) at org.apache.catalina.util.LifecycleBase.start(Life
最新发布
08-07
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