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时间：2023-06-12 10:57:01 | 来源：网站运营
时间：2023-06-12 10:57:01 来源：网站运营
模板模式(Java版)：
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public interface BaseTrainService<K, V> { V execute(K vo);}@Slf4jpublic abstract class CommonTrainService<K, V> implements BaseTrainService<K, V> { // 预处理 protected abstract boolean preHandle(K vo); // 核心处理流程 protected abstract V handle(K vo); // 后处理 protected abstract V postHandle(K vo, V dto); @Override public final V execute(K vo) { V dto = null; try { boolean flag = preHandle(vo); if (flag) { dto = handle(vo); } dto = postHandle(vo, dto); } catch (Exception e) { log.error("处理训练任务异常", e); } return dto; }}@Slf4jpublic class SimpleTrainService extends CommonTrainService<TrainVO, Response<TrainDTO>> { @Override protected boolean preHandle(TrainVO vo) { return true; } @Override protected Response<TrainDTO> handle(TrainVO vo) { TrainDTO result = new TrainDTO(); ... return Response.success(result); } @Override protected Response<TrainDTO> postHandle(TrainVO vo, Response<TrainDTO> dto) { if (dto == null) { return Response.fail("创建训练任务失败"); } return dto; } }@Slf4jpublic class ComplexTrainService extends CommonTrainService<TrainVO, Response<TrainDTO>> { @Override protected boolean preHandle(TrainVO vo) { List<TrainRecord> list = .... return CollectionUtils.isEmpty(list); } @Override protected Response<TrainDTO> handle(TrainVO vo) { TrainDTO result = new TrainDTO(); ... return Response.success(result); } @Override protected Response<TrainDTO> postHandle(TrainVO vo, Response<TrainDTO> dto) { if (dto == null) { return Response.fail("创建训练任务失败"); } return dto; } }public class Client { public Response<TrainDTO> simpleTrainTask(TrainVO vo){ ComplexTrainService service = new ComplexTrainService(); return service.execute(vo); }}关键词：模式,模板
