Use commons-beanutils converted into javabean Map date date format can not customize

        Met today need to convert a function javabean attributes to map <String, String>, the thought of apache commons-beanutils of BeanUtils tools may have this function. It was found that there describe can be achieved. The next test can be converted, but found a problem, date type can not convert well, it can only be converted into Thu Sep 17 19:26:59 CST 2015 this format, and I need yyyy-MM-dd format. Turned down the source found a date converter DateConverter, try the next registered to BeanUtilsBean in.

BeanUtilsBean beanUtilsBean = BeanUtilsBean.getInstance();
DateConverter converter = new DateConverter();
converter.setPattern("yyyy-MM-dd");
beanUtilsBean.getConvertUtils().register(new ConverterFacade(converter), java.util.Date.class);

But found ineffective, found to continue reading the source, it uses only StringConverter a converter code below.

 public String convert(Object value) {


        if (value == null) {
            return null;
        } else if (value.getClass().isArray()) {
            if (Array.getLength(value) < 1) {
                return (null);
            }
            value = Array.get(value, 0);
            if (value == null) {
                return null;
            } else {
                Converter converter = lookup(String.class);
                return (converter.convert(String.class, value));
            }
        } else {
            Converter converter = lookup(String.class);
            return (converter.convert(String.class, value));
        }


    }

No option but to re-cover the code, the final code is as follows:

public class ExtConvertUtilsBean extends ConvertUtilsBean{


@Override
public String convert(Object value) {
       if (value == null) {
           return null;
       } else if (value.getClass().isArray()) {
           if (Array.getLength(value) < 1) {
               return (null);
           }
           value = Array.get(value, 0);
           if (value == null) {
               return null;
           } else {
               Converter converter = lookup(String.class);
               return (converter.convert(String.class, value));
           }
       } else {
        Converter converter = null;
        if(value instanceof java.util.Date ){
        converter = lookup(java.util.Date.class);
        }else{
        converter = lookup(String.class);
        }
           return (converter.convert(String.class, value));
       }


}

}

BeanUtilsBean beanUtilsBean = new BeanUtilsBean(new ExtConvertUtilsBean());
DateConverter converter = new DateConverter();
converter.setPattern(pattern);
beanUtilsBean.getConvertUtils().register(new ConverterFacade(converter), java.util.Date.class);
beanUtilsBean.describe(object);

At this point you can implement a custom date formatting functionality.