package UnitTest.ImportExcel;

import com.dsideal.QingLong.Util.ImportUtil;
import com.jfinal.kit.StrKit;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.*;

public class TestReadMergeCell {
    /**
     * 功能：判断一个单元格是不是被合并了
     *
     * @param sheet
     * @param row
     * @param col
     * @return
     */
    public static boolean isMerged(XSSFSheet sheet, int row, int col) {
        // 判断单元格是否被合并
        for (CellRangeAddress range : sheet.getMergedRegions()) {
            if (row >= range.getFirstRow() && row <= range.getLastRow()
                    && col >= range.getFirstColumn() && col <= range.getLastColumn()) {
                return true;
            }
        }
        return false;
    }

    public static void main(String[] args) throws IOException {
        String source = "D:\\dsWork\\QingLong\\src\\main\\resource\\Excel\\source.xlsx";
        int row = 3; // 假设要判断的单元格的行号
        int col = 1; // 假设要判断的单元格的列号

        InputStream is = new FileInputStream(source);
        XSSFWorkbook wb = new XSSFWorkbook(is);
        XSSFSheet sheet = wb.getSheetAt(0);

        for (int i = row; i <= sheet.getLastRowNum(); i++) {
            if (isMerged(sheet, i, col)) {
                XSSFCell cell = sheet.getRow(i).getCell(col);
                String value = ImportUtil.getValue(cell).toString();
                if (StrKit.isBlank(value)) {
                    for (int j = i - 1; ; j--) {
                        String prev = ImportUtil.getValue(sheet.getRow(j).getCell(col)).toString();
                        if (!StrKit.isBlank(prev)) {
                            System.out.println(prev);
                            break;
                        }
                    }
                } else {
                    System.out.println(ImportUtil.getValue(cell));
                }

            }
        }
    }

}