通过反射和Stream实现对象和集合拷贝

List list2= list1.stream()
        .map(e -> {
            PoolCodeDto codeDto = new PoolCodeDto();
            BeanUtils.copyProperties(e, codeDto);
            codeDto.setPoolCode(e.getDictCode());
            codeDto.setH5Url(e.getDictValue());
            codeDto.setWechatUrl(e.getDescription());
            return codeDto;
        }).collect(Collectors.toList());

​​​​​​​

 
        public static  V copyBean(Object source, Class clazz) {
            
            V result = null;
            try {
                result = clazz.newInstance();
                
                Assert.notNull(source, "Source must not be null");
                BeanUtils.copyProperties(source, result);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return result;
        }

        
        public static  List copyBeanList(List list, Class clazz) {
            
            return list.stream()
                    .map(o -> copyBean(o, clazz))
                    .collect(Collectors.toList());
        }