平台历史数据 导入导出接口

mitao

2024-04-09 ec76c5defdd8018ce4efcc8795508498a84de4b7

 ruoyi-system/src/main/java/com/ruoyi/system/handler/SelectedSheetWriteHandler.java

@@ -3,6 +3,7 @@
import com.alibaba.excel.write.handler.SheetWriteHandler;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteWorkbookHolder;
import java.util.Map;
import lombok.Data;
import org.apache.poi.ss.usermodel.DataValidation;
import org.apache.poi.ss.usermodel.DataValidationConstraint;
@@ -11,28 +12,33 @@
import org.apache.poi.ss.util.CellRangeAddressList;
import org.apache.poi.xssf.usermodel.XSSFDataValidation;

import java.util.Map;

@Data
public class SelectedSheetWriteHandler implements SheetWriteHandler {
    private Map<Integer, String[]> selectedMap;

    public SelectedSheetWriteHandler(Map<Integer, String[]> selectedMap) {
    private Map<Integer, String[]> selectedMap;
    private int rows;

    public SelectedSheetWriteHandler(Map<Integer, String[]> selectedMap, int rows) {
        this.selectedMap = selectedMap;
        this.rows = rows;
    }

    @Override
    public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
    public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder,
            WriteSheetHolder writeSheetHolder) {
        //获取sheet页
        Sheet sheet = writeSheetHolder.getSheet();
        int firstRow = writeSheetHolder.getHead().get(0).size() + 1;
        int lastRow = writeSheetHolder.getHead().get(0).size() + rows;
        ///开始设置下拉框
        DataValidationHelper helper = sheet.getDataValidationHelper();
        for (Map.Entry<Integer, String[]> entry : selectedMap.entrySet()) {
            /***起始行、终止行、起始列、终止列**/
            CellRangeAddressList addressList = new CellRangeAddressList(firstRow, firstRow, entry.getKey(), entry.getKey());
            CellRangeAddressList addressList = new CellRangeAddressList(firstRow, lastRow,
                    entry.getKey(), entry.getKey());
            /***设置下拉框数据**/
            DataValidationConstraint constraint = helper.createExplicitListConstraint(entry.getValue());
            DataValidationConstraint constraint = helper.createExplicitListConstraint(
                    entry.getValue());
            DataValidation dataValidation = helper.createValidation(constraint, addressList);
            /***处理Excel兼容性问题**/
            if (dataValidation instanceof XSSFDataValidation) {