1.问题描述：
用Tomcat启动一个Maven项目时，启动不起来，报错如下：
03-Dec-2019 20:32:21.358 严重 [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/fendo-SSM]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:753)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:729)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1129)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1871)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@7822458a]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4969)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5099)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
... 10 more
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.JarResourceSet@58b14405]
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:135)
at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:707)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
... 13 more
Caused by: java.lang.IllegalArgumentException: java.util.zip.ZipException: invalid LOC header (bad signature)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:113)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
... 16 more
Caused by: java.util.zip.ZipException: invalid LOC header (bad signature)
at java.util.zip.ZipFile.read(Native Method)
at java.util.zip.ZipFile.access$1400(ZipFile.java:60)
at java.util.zip.ZipFile$ZipFileInputStream.read(ZipFile.java:717)
at java.util.zip.ZipFile$ZipFileInflaterInputStream.fill(ZipFile.java:419)
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:158)
at sun.misc.IOUtils.readFully(IOUtils.java:65)
at java.util.jar.JarFile.getBytes(JarFile.java:425)
at java.util.jar.JarFile.getManifestFromReference(JarFile.java:193)
at java.util.jar.JarFile.getManifest(JarFile.java:180)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:111)
... 17 more
开始一直关注 “Failed to start component ”这个错误，网上找了很多方法，都不行，后来看到还有一个错误是“java.util.zip.ZipException: invalid LOC header (bad signature)”，然后从这里入手，发现是mvn下载的jar包邮问题导致的，下面给出解决办法
2.解决方法
右键项目->Run as-> Maven test， 这里一定要注意：不要看到控制台打印出BUILD SUCCESS就认为是没问题的，要仔细看控制台的信息，如果出现
[WARNING] 读取C:\Users\PC\.m2\repository\org\springframework\spring-jdbc\4.3.12.RELEASE\spring-jdbc-4.3.12.RELEASE.jar时出错; invalid LOC header (bad signature)
[WARNING] 读取C:\Users\PC\.m2\repository\org\springframework\spring-aspects\4.3.12.RELEASE\spring-aspects-4.3.12.RELEASE.jar时出错; invalid LOC header (bad signature)
[WARNING] 读取C:\Users\PC\.m2\repository\javax\servlet\jstl\1.2\jstl-1.2.jar时出错; invalid LOC header (bad signature)
类似于如上的信息，就找到本地maven仓库的地址把出错的jar包删除掉，然后重新maven update一下，重新下载jar包，再启动就没问题了
注意：如果运行maven test没出现的话，先maven clean一下再执行maven test