最近在研究HtmlClient3.1，執行時一直出現例外
Exception in thread 『main』 java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.commons.httpclient.HttpClient.<clinit>(HttpClient.java:66)
at main.FileDownLoader.downloadFile(FileDownLoader.java:64)
at main.Main.main(Main.java:24)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
… 3 more
上網查才發現還需安裝其他兩個程式庫才能正常的執行:apache-commons-logging,apache-commons-codes
下載後加入程式庫就可以正常的編譯了~~