Excel导入扩展点-整体导入(批量导入)

1、【导入】在有些场景,需要获取Excel导入的整体数据,进行批量的操作或者校验

可以通过实现导入扩展点的方式实现,入参data是导入Excel的数据列表;业务可以根据实际情况进行数据校验

1)Excel模板定义,需要设置setEachImport(false)

Excel导入扩展点-整体导入(批量导入)

2)导入扩展点API定义

pro.shushi.pamirs.file.api.extpoint.ExcelImportDataExtPoint#importData

3)示例代码参考:

pro.shushi.pamirs.translate.extpoint.ResourceTranslationImportExtPoint#importData

@Slf4j
@Component
@Ext(ExcelImportTask.class)
public class ResourceTranslationImportExtPoint extends AbstractExcelImportDataExtPointImpl<List<ResourceTranslationItem>> {

    @Override
    //TODO 表达式,可以自定义,比如可以支持1个模型的多个【导入名称】的不同模板
    @ExtPoint.Implement(expression = "importContext.definitionContext.model==\"" + ResourceTranslation.MODEL_MODEL + "\"")
    public Boolean importData(ExcelImportContext importContext, List<ResourceTranslationItem> dataList) {
        //TODO dataList就是excel导入那个sheet的所有内容

        return true;
    }

}

2、【导入】逐行导入的时候做事务控制

在模板中定义中增加事务的定义,并设置异常后回滚。参加示例代码:

excel模板定义

@Component
public class DemoItemImportTemplate implements ExcelTemplateInit {

    public static final String TEMPLATE_NAME = "商品导入模板";

    @Override
    public List<ExcelWorkbookDefinition> generator() {
        //定义事务(导入处理中,只操作单个表的不需要事务定义。)
        //是否定义事务根据实际业务逻辑确定。比如:有些场景在导入前需要删除数据后在进行导入就需要定义事务
        InitializationUtil.addTxConfig(DemoItem.MODEL_MODEL, ExcelDefinitionContext.EXCEL_TX_CONFIG_PREFIX + TEMPLATE_NAME);

        return Collections.singletonList(
                ExcelHelper.fixedHeader(DemoItem.MODEL_MODEL, TEMPLATE_NAME)
                        .setType(ExcelTemplateTypeEnum.IMPORT)
                        .createSheet("商品导入-sheet1")
                        .createBlock(DemoItem.MODEL_MODEL)
                        .addUnique(DemoItem.MODEL_MODEL,"name")
                        .addColumn("name","名称")
                        .addColumn("description","描述")
                        .addColumn("itemPrice","单价")
                        .addColumn("inventoryQuantity","库存")
                        .build().setEachImport(true)
                        //TODO 设置异常后回滚的标识,这个地方会回滚事务
                        .setHasErrorRollback(true)
                        .setExcelImportMode(ExcelImportModeEnum.SINGLE_MODEL)
        );

    }
}

导入逻辑处理

@Slf4j
@Component
@Ext(ExcelImportTask.class)
public class DemoItemImportExtPoint extends AbstractExcelImportDataExtPointImpl<DemoItem> implements ExcelImportDataExtPoint<DemoItem> {

    @Autowired
    private DemoItemService demoItemService;

    @Override
    @ExtPoint.Implement(expression = "importContext.definitionContext.model == \"" + DemoItem.MODEL_MODEL + "\"")
    public Boolean importData(ExcelImportContext importContext, DemoItem data) {
        ExcelImportTask importTask = importContext.getImportTask();
        try {
            DemoItemImportTask hrExcelImportTask = new DemoItemImportTask().queryById(importTask.getId());

            String publishUserName = Optional.ofNullable(hrExcelImportTask).map(DemoItemImportTask::getPublishUserName).orElse(null);
            data.setPublishUserName(publishUserName);

            demoItemService.create(data);
        } catch(PamirsException e) {
            log.error("导入异常", e);
        } catch (Exception e) {
            log.error("导入异常", e);
        }
        return Boolean.TRUE;
    }
}

Oinone社区 作者:望闲原创文章,如若转载,请注明出处:https://doc.oinone.top/backend/4856.html

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