Constructor threw exception; nested exception is java.lang.NoClassDefFoundError

Constructor threw exception; nested exception is java.lang.NoClassDefFoundError:
Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/dom4j/DocumentException

解决:You need Dom4J in your classpath. 
我的异常网推荐解决方案:Servlet.service() for servlet default threw exception,http://www.myexception.cn/eclipse/181756.html

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