org.apache.commons.beanutils.ConversionException:报错
org.apache.commons.beanutils.ConversionException: DateConverter does not support default String to Date conversion. at org.apache.commons.beanutils.converters.DateTimeConverter.toDate(DateTimeConverter.java:468) at org.apache.commons.beanutils.converters.DateTimeConverter.convertToType(DateTimeConverter.java:343) at org.apache.commons.beanutils.converters.AbstractConverter.convert(AbstractConverter.java:156) at org.apache.commons.beanutils.converters.ConverterFacade.convert(ConverterFacade.java:60) at org.apache.commons.beanutils.ConvertUtilsBean.convert(ConvertUtilsBean.java:470) at org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:1008) at org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:830) at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:433) at com.fulisha.web.servlet.RegisterServlet.doGet(RegisterServlet.java:25) at com.fulisha.web.servlet.RegisterServlet.doPost(RegisterServlet.java:55) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
这是日期转换错误（使用BeanUtils进行设置属性时，对于String,int可以自动转换 ，beanutils不支持字符串转换成其他对象类型。要想转换需要注册一个转换器）
解决方法：
注册一个注册转换器 ConvertUtils.register(new DateConverter(), java.util.Date.class);
ConvertUtils.register(new Converter() { @Override public Object convert(Class clazz, Object value) { //将String转化为date SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd"); Date parse=null; try {
//parse()返回的是一个Date类型数据，format返回的是一个StringBuffer类型的数据
parse =format.parse(value.toString()); } catch (ParseException e) { e.printStackTrace(); } return parse; } }, Date.class);