tomcat启动失败_严重: A child container failed during start

错误信息代码：

严重: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]]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:1123)at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)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].StandardContext[]]at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)... 6 more

前提： maven项目，tomcat 7 ，jdk 1.8

其他人也出现了这个问题，他的问题是在web.xml文件<url-pattern>/*.do</url-pattern>多加了一个 ‘/'

检查了我的xml文件，我的问题并不在此

然后我考虑是jar包下载问题：

1：首先run as --> maven test检查是否报错，并没有报错

2：然后run as-->maven build，再Goals下输入以下命令:clean install -e(如果构建出现异常，该参数能让Maven打印完整的stack trace，以方便分析错误原因)

严重: Unable to process Jar entry [org/springframework/mail/MailSender.class] from Jar [jar:file:/D:/maven/repository/org/springframework/spring-context-support/5.1.7.RELEASE/spring-context-support-5.1.7.RELEASE.jar!/] for annotations
java.util.zip.ZipException: invalid LOC header (bad signature)

可以看出该问题是spring-context-support-5.1.7.RELEASE.jar 包下载不完全，或者jar 包缺失导致的

3：把该jar包删除，重新下载，但是依然报错？？？最后修改了所有spring下的jar包版本为4.2.4.RELEASE后，clean 重新编译成功了！！！

转载于:https://www.cnblogs.com/sunchunmei/p/11415723.html

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