java.lang.reflect.InvocationTargetException

错误信息

先贴出我的错误信息:

Exception

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	com.yxy.servlet.BaseServlet.service(BaseServlet.java:64)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause

java.lang.reflect.InvocationTargetException
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.base/java.lang.reflect.Method.invoke(Method.java:567)
	com.yxy.servlet.BaseServlet.service(BaseServlet.java:48)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause

java.lang.NoClassDefFoundError: org/apache/commons/collections/FastHashMap
	org.apache.commons.beanutils.PropertyUtilsBean.getPropertyDescriptor(PropertyUtilsBean.java:964)
	org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:935)
	org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:823)
	org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:431)
	com.yxy.commons.CommonUtils.toBean(CommonUtils.java:24)
	com.yxy.cstm.web.servlet.CustomerServlet.add(CustomerServlet.java:20)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.base/java.lang.reflect.Method.invoke(Method.java:567)
	com.yxy.servlet.BaseServlet.service(BaseServlet.java:48)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause

java.lang.ClassNotFoundException: org.apache.commons.collections.FastHashMap
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
	org.apache.commons.beanutils.PropertyUtilsBean.getPropertyDescriptor(PropertyUtilsBean.java:964)
	org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:935)
	org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:823)
	org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:431)
	com.yxy.commons.CommonUtils.toBean(CommonUtils.java:24)
	com.yxy.cstm.web.servlet.CustomerServlet.add(CustomerServlet.java:20)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.base/java.lang.reflect.Method.invoke(Method.java:567)
	com.yxy.servlet.BaseServlet.service(BaseServlet.java:48)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

经过反复测试发现是在使用beanUtils的populate将map中的属性封装到javabean对象时抛出了RuntimeException异常,导致程序执行中断,发现是没有导入BeanUtils的依赖jar包:我的是:Commons-connections-3.22.导入了后项目就正常运行了.

这个世界上没有跨不过的坎儿,加油!!!