做文件上传时，我写了本地的一个相对路径，在Tomact Modules中配置了如下信息：
而之后无意中我删除了该文件夹，就出现 了如下错误：导致Tomcat无法启动
Error starting static Resources
java.lang.IllegalArgumentException: Document base C:\A_WEB\upload does not exist or is not a readable directory at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:136) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:5247) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5436) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1571) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1561) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) 五月 04, 2017 9:06:45 上午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/pic]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1119) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:819) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1571) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1561) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/pic]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) ... 6 more Caused by: org.apache.catalina.LifecycleException: Error in resourceStart() at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5437) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)... 6 more
解决办法：一、在Tomcat Module中删除配置；二、恢复之前删除的文件夹。（如果你不是以上错误原因，本解决办法恐怕无法解决）
