springboot内置tomcat启动过程（Tomcat启动springboot项目war包报错：启动子级时出错的问题）

springboot内置tomcat启动过程

今天公司springboot项目准备部署到测试服务器上进行测试，打包好war后放到tomcat里面启动后，前端文件能访问到，但是接口请求一直是404，一直找了很久的原因，tomcat启动是成功的，war打包的时候也提示build success了，tomcat启动日志发现报错：

java.lang.IllegalStateException: 启动子级时出错
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
  at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
  at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
  at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
  at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1848)
  at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
  at java.util.concurrent.FutureTask.run(Unknown Source)
  at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
  at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
  at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
  at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
  at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576)
  at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309)
  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:936)
  at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
  at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
  at java.util.concurrent.FutureTask.run(Unknown Source)
  at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
  at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
  at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
  at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  at org.apache.catalina.startup.Catalina.start(Catalina.java:738)
  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.catalina.startup.Bootstrap.start(Bootstrap.java:342)
  at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:473)
 Caused by: org.apache.catalina.LifecycleException: 初始化组件[org.apache.catalina.webresources.JarResourceSet@67d48005]失败。
  at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
  at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:139)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:173)
  at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:726)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4792)
  at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4928)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
  ... 37 more
 Caused by: java.lang.IllegalArgumentException: java.util.zip.ZipException: error in opening zip file
  at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:143)
  at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
  ... 44 more
 Caused by: java.util.zip.ZipException: error in opening zip file
  at java.util.zip.ZipFile.open(Native Method)
  at java.util.zip.ZipFile.<init>(Unknown Source)
  at java.util.zip.ZipFile.<init>(Unknown Source)
  at java.util.jar.JarFile.<init>(Unknown Source)
  at java.util.jar.JarFile.<init>(Unknown Source)
  at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:221)
  at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:206)
  at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:140)
  ... 45 more

一直在关注：启动子级时出错，找了很久没有解决！后面关注到下面的zip错误问题，然后再回去考虑打包的问题，终于发现打包的时候出现了问题，虽然最后是build success，但是前面提示了有error没注意到，截图如下：

这就是问题所在，怎么解决的呢？

解决方法：

将报错的jar包从maven仓库中删除掉，然后重新下载打包，发现这一次没有报错error，然后扔到tomcat里面启动没有错误日志了，访问也正常了！

谨以此文章记录提醒以后自己多关注一下项目执行、打包等过程和日志等！

总结

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