org.apache.commons.beanutils.PropertyUtils

今天从SVN上下了个项目，增加了点功能后出现下面异常，一看就知道是缺包，可问项目负责人的时候说不可能缺包，由于最近电脑环境经常出问题，所以也不敢断定，测试了很久后还是断定少了个包：少的包如下：commons-beanutils.jar
异常如下：

java.lang.ClassNotFoundException: org.apache.commons.beanutils.PropertyUtils

010-7-1 10:04:54 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet csti threw exception
java.lang.ClassNotFoundException: org.apache.commons.beanutils.PropertyUtils
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1484)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1329)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
	at com.adtech.export.util.PropertyValueUtil.getValue(PropertyValueUtil.java:51)
	at com.adtech.export.util.PropertyValueUtil.getValueParseString(PropertyValueUtil.java:71)
	at com.adtech.export.ExportBase.getOneRowDataAddSerialNumber(ExportBase.java:53)
	at com.adtech.export.ExportBase.getOneRowData(ExportBase.java:25)
	at com.adtech.export.ExportExcel.setTableData(ExportExcel.java:409)
	at com.adtech.export.ExportExcel.exportExcel(ExportExcel.java:215)
	at com.adtech.export.ExportExcel.exportExcel(ExportExcel.java:125)
	at com.adtech.csti.util.ExportExcelController.writeExcel(ExportExcelController.java:90)
	at com.adtech.adtech.csti.web.user.UserInfoManageController.exportUserInfo(UserInfoManageController.java:841)
	at com.adtech.adtech.csti.web.user.UserInfoManageController.handleRequestInternal(UserInfoManageController.java:763)
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.adtech.adtech.csti.web.util.HttpFilter.doFilter(HttpFilter.java:159)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:65)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.adtech.adtech.csti.web.GZIPFilter.doFilter(GZIPFilter.java:33)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:619)