Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.ExtendedProperties

摘要: Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.ExtendedProperties

Exception in thread "main" java.lang.NoClassDefFoundError:

org/apache/commons/collections/ExtendedProperties
at org.apache.velocity.runtime.RuntimeInstance.<init>(RuntimeInstance.java:183)
at org.apache.velocity.app.VelocityEngine.<init>(VelocityEngine.java:60)
at com.anlve.demo.HelloVelocity.main(HelloVelocity.java:21)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.ExtendedProperties
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 3 more



第一次做velocity小demo，照猫画虎弄完结果启动报错，以为是demo的问题，结果最终是因为缺jar包导致

把相应的jar包导入启动OK



吃一堑长一智

附上我的小demo

先整体截个图

链接: https://pan.baidu.com/s/1hsGP9L6 密码: itp2