其中用到了2个包:分别是dom4j-1.6.1.jar和jaxen.jar
[color=red]注:在创建xml时只需要dom4j包就可以了,而在解析修改xml的时候必须有jaxen包才行,否则会报错。
错误描述:Exception in thread "main" java.lang.NoClassDefFoundError: org/jaxen/JaxenException
at org.dom4j.DocumentFactory.createXPath(DocumentFactory.java:230)
at org.dom4j.tree.AbstractNode.createXPath(AbstractNode.java:207)
at org.dom4j.tree.AbstractNode.selectNodes(AbstractNode.java:164)
at com.elecpaper.buss.action.dom4jUpdate.main(dom4jUpdate.java:24)
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