java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory

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Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactoryat org.apache.hadoop.conf.Configuration.<clinit>(Configuration.java:173)at com.newspace.HDFSDemo.init(HDFSDemo.java:28)at com.newspace.HDFSDemo.main(HDFSDemo.java:86)Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactoryat java.net.URLClassLoader$1.run(URLClassLoader.java:372)at java.net.URLClassLoader$1.run(URLClassLoader.java:361)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:360)at java.lang.ClassLoader.loadClass(ClassLoader.java:424)at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)at java.lang.ClassLoader.loadClass(ClassLoader.java:357)... 3 more

是因为少导入了commons-logging.jar，导入此jar问题则会解决！

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