添加：使用EasyExcel插件实现采购计划导入数据功能

dcs-plan-common/pom.xml

@@ -86,6 +86,11 @@
             <version>2.17.1</version>
             <scope>compile</scope>
         </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>easyexcel</artifactId>
+            <version>3.0.4</version>
+        </dependency>
     </dependencies>
 
 

dcs-plan-common/src/main/java/com/yonde/dcs/plan/common/listener/PurchasePlanExcelListenner.java

+package com.yonde.dcs.plan.common.listener;
+
+import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.context.AnalysisContext;
+import com.alibaba.excel.event.AnalysisEventListener;
+import com.alibaba.excel.util.ListUtils;
+import com.yonde.dcs.plan.common.vo.ExtPuchasePlanExcelVO;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.List;
+
+@Slf4j
+public class PurchasePlanExcelListenner extends AnalysisEventListener<ExtPuchasePlanExcelVO> {
+
+    /**
+     * 每隔100条处理下，然后清理list ，方便内存回收
+     */
+    private static final int BATCH_COUNT = 100;
+
+    /**
+     * 缓存的数据
+     */
+    private List<ExtPuchasePlanExcelVO> cachedDataList = ListUtils.newArrayListWithExpectedSize(BATCH_COUNT);
+
+
+    @Override
+    public void invoke(ExtPuchasePlanExcelVO extPuchasePlanExcelVO, AnalysisContext analysisContext) {
+
+        log.info("解析到一条数据:{}", extPuchasePlanExcelVO);
+        cachedDataList.add(extPuchasePlanExcelVO);
+        if (cachedDataList.size() >= BATCH_COUNT) {
+            // 处理缓存的数据，比如说入库。。。
+            // 然后清空
+            //todo 需要处理采购计划数据到数据库
+            cachedDataList.clear();
+        }
+    }
+
+    @Override
+    public void doAfterAllAnalysed(AnalysisContext analysisContext) {
+        // 收尾工作，处理剩下的缓存数据。。。
+        log.info("sheet={} 所有数据解析完成！", analysisContext.readSheetHolder().getSheetName());
+    }
+
+    /**
+     *
+     * @param exception
+     * @param context
+     * @throws Exception
+     */
+    @Override
+    public void onException(Exception exception, AnalysisContext context) throws Exception {
+        log.error("======>>>解析异常：", exception);
+        throw exception;
+    }
+
+    //todo wq测试代码
+//    public static void main(String[] args) {
+//        String fileName = "F:\\yangyi\\项目\\清华核研院\\核研院设计文档及原型\\采购计划导入模板.xlsx";
+//        EasyExcel.read(fileName, ExtPuchasePlanExcelVO.class, new PurchasePlanExcelListenner()).sheet().doRead();
+//    }
+}

dcs-plan-common/src/main/java/com/yonde/dcs/plan/common/vo/ExtPuchasePlanExcelVO.java

+package com.yonde.dcs.plan.common.vo;
+
+import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.annotation.ExcelProperty;
+import com.alibaba.excel.annotation.write.style.ColumnWidth;
+import com.alibaba.excel.annotation.write.style.ContentRowHeight;
+import com.alibaba.excel.annotation.write.style.HeadRowHeight;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import org.apache.poi.ss.usermodel.CellType;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+@EqualsAndHashCode(callSuper = false)
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+
+public class ExtPuchasePlanExcelVO {
+
+
+    @ExcelProperty(value = {"采购计划","操作*"},index = 0)
+    @ColumnWidth(20)
+    private String operation;
+    /**
+    * 外协项目名称
+    */
+    @ExcelProperty(value = {"采购计划","外协（外购）项目名称*"},index = 1)
+    @ColumnWidth(20)
+    private String outsourceProjectName;
+
+    /**
+    * 采购技术文件实际提交时间
+    */
+    @ExcelProperty(value = {"采购计划","采购技术文件提交时间*"},index = 2)
+    @ColumnWidth(20)
+    private LocalDateTime purDesignFileSubmitTime;
+
+
+    /**
+    * 合同签订时间*
+    */
+    @ExcelProperty(value = {"采购计划","合同签订时间*"},index = 3)
+    @ColumnWidth(20)
+    private LocalDateTime contractActualSigningTime;
+
+
+    /**
+     * 合同交付时间*
+     */
+    @ExcelProperty(value = {"采购计划","合同交付时间*"},index = 4)
+    @ColumnWidth(20)
+    private String contractActualDeliveryTime;
+
+    /**
+     * 采购技术文件负责人
+     */
+    @ExcelProperty(value = {"采购计划","采购技术文件负责人*"},index = 5)
+    @ColumnWidth(20)
+    private String purDesignFileManager;
+
+
+    /**
+     * 采购预算
+     */
+    @ExcelProperty(value = {"采购计划","预算(万元)*"},index = 6)
+    @ColumnWidth(20)
+    private String purchaseBudget;
+
+
+    /**
+     * 项目代号
+     */
+    @ExcelProperty(value = {"采购计划","项目代号*"},index = 7)
+    @ColumnWidth(20)
+    private String projectCode;
+    /**
+     * 密级
+     */
+    @ExcelProperty(value = {"采购计划","密级*"},index = 8)
+    @ColumnWidth(20)
+    private String secretCode;
+
+
+    /**
+     * 备注
+     */
+    @ExcelProperty(value = {"采购计划","备注*"},index = 9)
+    @ColumnWidth(20)
+    private String note;
+
+    public static void main(String[] args) {
+
+        List<ExtPuchasePlanExcelVO> list = new ArrayList<>();
+        for (int i=0;i<=1;i++){
+            ExtPuchasePlanExcelVO extPuchasePlanExcelVO = new ExtPuchasePlanExcelVO();
+            extPuchasePlanExcelVO.setNote("测试"+i);
+            list.add(extPuchasePlanExcelVO);
+        }
+
+        EasyExcel.write(
+                "F:\\yangyi\\项目\\清华核研院\\核研院设计文档及原型\\采购计划导入模板.xlsx", ExtPuchasePlanExcelVO.class)
+                .sheet("采购计划").doWrite(list);
+    }
+}
+
+