1、下载最新版本
2、将lib文件夹下的jar包除gnujaxp.jar外全部复制到web-ing 下的lib文件夹下；
多了gnujaxp.jar文件：
启动tomcat会报异常：Unable to validate using XSD: Your JAXP provider [org.apache.xerces.jaxp.DocumentBuilderFactoryImpl@11ce012] does not support XML Schema. Are you running on Java 1.4 with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support.
少了jcommon-1.0.17.jar文件：
启动tomcat会报异常：The type org.jfree.util.PublicCloneable cannot be resolved. It is indirectly