为避免返回给前端的字段信息太多，在缓解前、后端通信的带宽压力的前提下，对不必要的字段的信息进行不返回时，entity层对象需要向vo层对象进行转换，同事尽量减少geetter与setter方法的编码。

1. ConvertUtils工具类

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;public class ConvertUtils {private static Logger LOGGER = LoggerFactory.getLogger(ConvertUtils.class);// 对象转换public static <T> T sourceToTarget(Object source, Class<T> target){if(source == null){return null;}T targetObject = null;try {targetObject = target.newInstance();BeanUtils.copyProperties(source, targetObject);} catch (Exception e) {LOGGER.error("convert error ", e);}return targetObject;}public static <T> List<T> sourceToTarget(Collection<?> sourceLis