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);

org.apache.commons.beanutils.ConversionException:报错

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