import org.springframework.beans.BeanUtils; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.function.Supplier; /** * 转换对象工具 */ public class BeanConvertUtils extends BeanUtils { public static <S, T> T convertTo(S source, Supplier<T> targetSupplier) { return convertTo(source, targetSupplier, null); } /** * 转换对象 * * @param source 源对象 * @param targetSupplier 目标对象供应方 * @param callBack 回调方法 * @param <S> 源对象类型 * @param <T> 目标对象类型 * @return 目标对象 */ public static <S, T> T convertTo(S source, Supplier<T> targetSupplier, ConvertCallBack<S, T> callBack) { if (null == source || null == targetSupplier) { return null; } T target = targetSupplier.get(); copyProperties(source, target); if (callBack != null) { callBack.callBack(source, target); } return target; } public static <S, T> List<T> convertListTo(List<S> sources, Supplier<T> targetSupplier) { return convertListTo(sources, targetSupplier, null); } /** * 转换对象 * * @param sources 源对象list * @param targetSupplier 目标对象供应方 * @param callBack 回调方法 * @param <S> 源对象类型 * @param <T> 目标对象类型 * @return 目标对象list */ public static <S, T> List<T> convertListTo(List<S> sources, Supplier<T> targetSupplier, ConvertCallBack<S, T> callBack) { if (null == sources || null == targetSupplier) { return Collections.emptyList(); } List<T> list = new ArrayList<>(sources.size()); for (S source : sources) { T target = targetSupplier.get(); copyProperties(source, target); if (callBack != null) { callBack.callBack(source, target); } list.add(target); } return list; } /** * 回调接口 * * @param <S> 源对象类型 * @param <T> 目标对象类型 */ @FunctionalInterface public interface ConvertCallBack<S, T> { void callBack(S t, T s); } }
使用示例:
List<SysArticles> jobs = sysArticlesService.getJobs(cityName);
//参数一:要转换的集合 参数二:转换之后的返回值类型 List<WebArticlesResp> webArticlesResps = BeanConvertUtils.convertListTo(jobs, WebArticlesResp::new);
标签:转换,source,targetSupplier,param,callBack,集合,return,工具,null From: https://www.cnblogs.com/liyongliangs/p/17991635