工具类

import cn.hutool.core.convert.Convert;
import cn.hutool.core.text.CharSequenceUtil;import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;/*** 查询结果集转换工具类 ResultConvert* 速度优于 JsonUtils.readValue(JsonUtils.toJsonString(lackDetails) ,Req.class); 8倍左右速度，简单测试*/
public class RC {/*** 名称转换器接口*/public interface ConverterName {String cv(String name);}// 小驼峰public static <T> List<T> toCamelCaseBO(List<Map<String, Object>> maps, Class<T> clazz) {return toBO(maps, clazz, name -> name);}// 小写下划线public static <T> List<T> toUnderlineCaseBO(List<Map<String, Object>> maps, Class<T> clazz) {return toBO(maps, clazz, CharSequenceUtil::toUnderlineCase);}// 大写下划线public static <T> List<T> toBigUnderlineCaseBO(List<Map<String, Object>> maps, Class<T> clazz) {return toBO(maps, clazz, name -> CharSequenceUtil.swapCase(CharSequenceUtil.toUnderlineCase(name)));}public static <T> List<T> toBO(List<Map<String, Object>> maps, Class<T> clazz, ConverterName converter) {List<T> list = new ArrayList<>(maps.size());try {for (Map<String, Object> map : maps) {T instance = clazz.getDeclaredConstructor().newInstance();Class<? super T> superclass = clazz;do {for (Field field : superclass.getDeclaredFields()) {// 避免改变成员变量的final属性if (Modifier.isFinal(field.getModifiers())) continue;field.setAccessible(true);Object object = Convert.convert(field.getType(), map.get(converter.cv(field.getName())), null);field.set(instance, object);}superclass = superclass.getSuperclass();} while (!superclass.equals(Object.class));list.add(instance);}} catch (Exception e) {throw new RuntimeException(e);}return list;}
}

使用

Page<Map<String, Object>> page = viewStorageOutDao.findPage(bo, pageable);
List<Map<String, Object>> content = page.getContent();
List<ViewStorageOutDTO> dto = RC.toBigUnderlineCaseBO(content, ViewStorageOutDTO.class);