Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogF
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MyEclipse运行的时候报错，菜鸟不理解是什么意思，最后找了一些资料才知道是因为缺少commons-logging.jar包
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.commons.httpclient.HttpClient.<clinit>(HttpClient.java:66)
at com.httputils.HttpUtil.methodPost(HttpUtil.java:26)
at com.test.UrlTest.main(UrlTest.java:36)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 3 more
解决方案：把commons-logging.jar放到百度里面搜索一下，查询出来结果后，点击第一个Apache官网，下载相应的Jar包，解压，找到jar文件，然后放到你项目WEB-INF/lib里面就可以了
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