java.lang.IllegalStateException: java.io.FileNotFoundException错误解决方案

警告: Exception processing loader WebappLoader[/myweb] background process
java.lang.IllegalStateException: java.io.FileNotFoundException: D:\编程学习\资料\java2se\workZero\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\myweb\WEB-INF\lib\commons-logging-1.2.jar (系统找不到指定的文件。)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.getArchiveEntry(AbstractSingleArchiveResourceSet.java:97)
at org.apache.catalina.webresources.AbstractArchiveResourceSet.getResource(AbstractArchiveResourceSet.java:260)
at org.apache.catalina.webresources.StandardRoot.getResourceInternal(StandardRoot.java:280)
at org.apache.catalina.webresources.Cache.getResource(Cache.java:62)
at org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:215)
at org.apache.catalina.webresources.StandardRoot.getClassLoaderResource(StandardRoot.java:224)
at org.apache.catalina.loader.WebappClassLoaderBase.modified(WebappClassLoaderBase.java:686)
at org.apache.catalina.loader.WebappLoader.modified(WebappLoader.java:343)
at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:287)
at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5545)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1388)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1392)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1392)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1360)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: D:\编程学习\资料\java2se\workZero\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\myweb\WEB-INF\lib\commons-logging-1.2.jar (系统找不到指定的文件。)
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.catalina.webresources.AbstractArchiveResourceSet.openJarFile(AbstractArchiveResourceSet.java:308)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.getArchiveEntry(AbstractSingleArchiveResourceSet.java:93)
... 14 more

错误如上，我的是因为maven的Update project 导致的。

解决方案：

项目右击-->properties-->Deployment Assembly-->add-->Java Build Path Entries-->导入所有依赖的Jar包，重新start tomcat即可。

如果还是没有解决，可能是因为你缺少某个包。

完整包如下：