ContactController.java 文件源码

@InitBinder    
public void initBinder(WebDataBinder dataBinder) {
    dataBinder.registerCustomEditor(ContactTopicType.class, new PropertyEditorSupport() {
        @Override
        public void setAsText(String value) throws IllegalArgumentException {
            setValue(ContactTopicType.valueOf(value));
        }

        @Override
        public String getAsText() {
            if(getValue() == null)
                return "";

            return ((ContactTopicType) getValue()).name();
        }
    });

}