Excel合并单元格读取

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文件：

输出：

南京_区1_A101_192.168.1.5_
南京_区1_A102_192.168.1.6_
南京_区2_A101_192.168.1.7_
南京_区2_A201_192.168.1.8_
南京_区2_A301_192.168.1.9_
南京_区2_A401_192.168.1.10_
南京_区3_B101_192.168.1.11_
南京_区3_B102_192.168.1.12_
无锡_区4_A101_192.168.1.13_
无锡_区4_A201_192.168.1.14_
无锡_区4_A301_192.168.1.15_
无锡_区4_A401_192.168.1.16_
无锡_区5_B101_192.168.1.17_
无锡_区5_B102_192.168.1.18_

常州_区6_A101_192.168.1.19_

代码：

import java.io.File;
import java.io.FileInputStream;
import java.text.SimpleDateFormat;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellRangeAddress;

public class ExcelUtils {

	public static void main(String[] args) {
		getAllByExcel("F:/a.xlsx");
		
	}

	public static void getAllByExcel(String filepath) {
		try {
			// 同时支持Excel 2003、2007
			File excelFile = new File(filepath); // 创建文件对象
			FileInputStream is = new FileInputStream(excelFile); // 文件流
			Workbook workbook = WorkbookFactory.create(is); // 这种方式 Excel
			
			String[] res = readExcel(workbook, 0, 1, 0);
			for (int i = 0; i < res.length; i++) {
				System.out.println(res[i]);
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

	private static String[] readExcel(Workbook wb, int sheetIndex, int startReadLine, int tailLine) {
		Sheet sheet = wb.getSheetAt(sheetIndex);
		Row row = null;
		String[] res = new String[sheet.getLastRowNum() - tailLine + 1];

		for (int i = startReadLine; i < sheet.getLastRowNum() - tailLine + 1; i++) {
			
			row = sheet.getRow(i);
			res[i] = "";
			for (Cell c : row) {
				boolean isMerge = isMergedRegion(sheet, i, c.getColumnIndex());
				// 判断是否具有合并单元格
				if (isMerge) {
					String rs = getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
					//System.out.print(rs + "_"+ row.getRowNum()+"_"+c.getColumnIndex() +"_");
					res[i] += rs+ "_";
				} else {
					//System.out.print(c.getRichStringCellValue() + "");
					res[i] += c.getRichStringCellValue()+ "_";
				}
			}
			//System.out.println();
		}
		
		if(startReadLine > 0){
			String[] result = new String[res.length - startReadLine];
			for (int i = 0; i < startReadLine; i++) {
				for (int j = 0; j < res.length; j++) {
					if(j == res.length - 1)
						continue;
					res[j] = res[j+1];
				}
			}
			for (int i = 0; i < result.length; i++) {
				result[i] = res[i];
			}
			return result;
		}else{
			return res;
		}
	}

	private static boolean isMergedRegion(Sheet sheet, int row, int column) {
		int sheetMergeCount = sheet.getNumMergedRegions();
		for (int i = 0; i < sheetMergeCount; i++) {
			CellRangeAddress range = sheet.getMergedRegion(i);
			int firstColumn = range.getFirstColumn();
			int lastColumn = range.getLastColumn();
			int firstRow = range.getFirstRow();
			int lastRow = range.getLastRow();
			if (row >= firstRow && row <= lastRow) {
				if (column >= firstColumn && column <= lastColumn) {
					return true;
				}
			}
		}
		return false;
	}

	public static String getMergedRegionValue(Sheet sheet, int row, int column) {
		int sheetMergeCount = sheet.getNumMergedRegions();

		for (int i = 0; i < sheetMergeCount; i++) {
			CellRangeAddress ca = sheet.getMergedRegion(i);
			int firstColumn = ca.getFirstColumn();
			int lastColumn = ca.getLastColumn();
			int firstRow = ca.getFirstRow();
			int lastRow = ca.getLastRow();

			if (row >= firstRow && row <= lastRow) {

				if (column >= firstColumn && column <= lastColumn) {
					Row fRow = sheet.getRow(firstRow);
					Cell fCell = fRow.getCell(firstColumn);
					return getCellValue(fCell);
				}
			}
		}

		return null;
	}

	private static String getCellValue(Cell cell) {
		SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
		String cellValue = "";
		int cellType = cell.getCellType();
		switch (cellType) {
		case Cell.CELL_TYPE_STRING: // 文本
			cellValue = cell.getStringCellValue();
			break;
		case Cell.CELL_TYPE_NUMERIC: // 数字、日期
			if (DateUtil.isCellDateFormatted(cell)) {
				cellValue = fmt.format(cell.getDateCellValue()); // 日期型
			} else {
				cellValue = String.valueOf((int) cell.getNumericCellValue()); // 数字
			}
			break;
		case Cell.CELL_TYPE_BOOLEAN: // 布尔型
			cellValue = String.valueOf(cell.getBooleanCellValue());
			break;
		case Cell.CELL_TYPE_BLANK: // 空白
			cellValue = cell.getStringCellValue();
			break;
		case Cell.CELL_TYPE_ERROR: // 错误
			cellValue = "错误";
			break;
		case Cell.CELL_TYPE_FORMULA: // 公式
			cellValue = "错误";
			break;
		default:
			cellValue = "错误";
		}
		return cellValue;
	}
}

maven：

<dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi</artifactId>
        <version>3.15</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.15</version>
    </dependency>

已经拿到输出了还不任你宰割咯

这样也可以：

输出：

南京1_区1_A101_192.168.1.5_
南京2_区1_A102_192.168.1.6_
南京3_区2_A101_192.168.1.7_
南京4_区2_A201_192.168.1.8_
南京5_区2_A301_192.168.1.9_
南京6_区2_A401_192.168.1.10_
南京7_区3_B101_192.168.1.11_
南京8_区3_B102_192.168.1.12_
无锡_区4_A101_192.168.1.13_
无锡_区4_A201_192.168.1.14_
无锡_区4_A301_192.168.1.15_
无锡_区4_A401_192.168.1.16_
无锡_区5_B101_192.168.1.17_
无锡_区5_B102_192.168.1.18_
常州_区6_A101_192.168.1.19_