Query query = JPA.em().createNativeQuery(EXECUTESQL);
//若不设置这一行, list中的元素默认为Object[]类型
//若设置后, Object[]会转为HashMap, 字段名为key, 字段值为value的形式
query.unwrap(SQLQuery.class).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP);
query.getResultList();

//该类作为了setResultTransformer方法的参数
public class AliasToEntityMapResultTransformer extends BasicTransformerAdapter implements Serializable {
    public static final AliasToEntityMapResultTransformer INSTANCE = new AliasToEntityMapResultTransformer();

    private AliasToEntityMapResultTransformer() {
    }

    public Object transformTuple(Object[] tuple, String[] aliases) {
        //此处申明的hashMap导致了结果集字段排序打乱
        Map result = new HashMap(tuple.length);

        for(int i = 0; i < tuple.length; ++i) {
            String alias = aliases[i];
            if (alias != null) {
                result.put(alias, tuple[i]);
            }
        }

        return result;
    }

    private Object readResolve() {
        return INSTANCE;
    }
}

//我们自行实现源码包下面的ResultTransformer接口
public interface ResultTransformer extends Serializable {
    //该方法用来转化结果集中的元组
    //参数1为元组
    //参数2为对应的字段名数组
    Object transformTuple(Object[] var1, String[] var2);

    List transformList(List var1);
}

//自己的实现
package utils.jpa;

import org.hibernate.transform.ResultTransformer;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

public class AliasToEntityLinkHashMapResultTransformer implements ResultTransformer {
    public static final AliasToEntityLinkHashMapResultTransformer INSTANCE = new AliasToEntityLinkHashMapResultTransformer();

    @Override
    public Object transformTuple(Object[] tuple, String[] aliases) {
        //此处Map申明为LinkedHashMap, 即可使字段排序保持查询时的顺序
        Map result = new LinkedHashMap(tuple.length);
        for(int i = 0; i < tuple.length; ++i) {
            String alias = aliases[i];
            if (alias != null) {
                result.put(alias, tuple[i]);
            }
        }
        return result;
    }

    @Override
    public List transformList(List list) {
        return list;
    }
}

Query query= JPA.em().createNativeQuery(EXECUTESQL);
//此处设置使用了我们自行实现的AliasToEntityLinkHashMapResultTransformer类
//即可使结果集保持查询的顺序
query.unwrap(SQLQuery.class).setResultTransformer(AliasToEntityLinkHashMapResultTransformer.INSTANCE);
list = query.getResultList();