Caused by: java.lang.NoSuchMethodException: com.keesail.weba.kltYdKpiTarget.PoiExcelExport.()

在启动项目时报如下错误

java.lang.InstantiationException: com.keesail.weba.kltYdKpiTarget.PoiExcelExport
	at java.lang.Class.newInstance(Class.java:427)
	at com.keesail.web.config.KeeJFinalKit.mapping(KeeJFinalKit.java:209)
	at com.keesail.feas.KeeConfigUtils.configDataSources(KeeConfigUtils.java:216)
	at com.keesail.web.config.WebConfig.configPlugin(WebConfig.java:135)
	at com.jfinal.core.Config.configJFinal(Config.java:49)
	at com.jfinal.core.JFinal.init(JFinal.java:62)
	at com.jfinal.core.JFinalFilter.init(JFinalFilter.java:54)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
	at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:107)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4656)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5309)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
	at java.util.concurrent.FutureTask.run(FutureTask.java)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodException: com.keesail.weba.kltYdKpiTarget.PoiExcelExport.()
	at java.lang.Class.getConstructor0(Class.java:3082)
	at java.lang.Class.newInstance(Class.java:412)
	... 19 more

然后在PoiExcelExport 中填入一个无参构造方法。即可。