java读取含有合并单元格的Excel
Excel如下：

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.*;import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.util.CellRangeAddress;public class ExcelUtil {public static void main(String[] args){ExcelUtil excelUtil = new ExcelUtil();//读取excel数据List<Map<String,String>> result = excelUtil.readExcelToObj("C:\\Users\\miracle\\Desktop\\合并单元格.xlsx");for(Map<String,String> map:result){System.out.println(map);}}/*** 读取excel数据* @param path*/private List<Map<String,String>> readExcelToObj(String path) {Workbook wb = null;List<Map<String,String>> result = null;try {wb = WorkbookFactory.create(new File(path));result = readExcel(wb, 0, 1, 0);} catch (InvalidFormatException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return result;}/*** 读取excel文件* @param wb* @param sheetIndex sheet页下标：从0开始* @param startReadLine 开始读取的行:从0开始* @param tailLine 去除最后读取的行*/private List<Map<String,String>> readExcel(Workbook wb,int sheetIndex, int startReadLine, int tailLine) {Sheet sheet = wb.getSheetAt(sheetIndex);Row row = null;List<Map<String,String>> result = new ArrayList<Map<String,String>>();for(int i=startReadLine; i<sheet.getLastRowNum()-tailLine+1; i++) {row = sheet.getRow(i);Map<String,String> map = new HashMap<String,String>();for(Cell c : row) {String returnStr = "";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 + "------ ");returnStr = rs;}else {//设置单元格类型c.setCellType(CellType.STRING);
//                    System.out.print(c.getRichStringCellValue()+"++++ ");returnStr = c.getRichStringCellValue().getString();}if(c.getColumnIndex()==0){map.put("class",returnStr);}else if(c.getColumnIndex()==1){map.put("course",returnStr);}else if(c.getColumnIndex()==2){map.put("student",returnStr);}else if(c.getColumnIndex()==3){map.put("score",returnStr);}}result.add(map);
//            System.out.println();}return result;}/*** 获取合并单元格的值* @param sheet* @param row* @param column* @return*/public 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 ;}/*** 判断合并了行* @param sheet* @param row* @param column* @return*/private boolean isMergedRow(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;}/*** 判断指定的单元格是否是合并单元格* @param sheet* @param row 行下标* @param column 列下标* @return*/private 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;}/*** 判断sheet页中是否含有合并单元格* @param sheet* @return*/private boolean hasMerged(Sheet sheet) {return sheet.getNumMergedRegions() > 0 ? true : false;}/*** 合并单元格* @param sheet* @param firstRow 开始行* @param lastRow 结束行* @param firstCol 开始列* @param lastCol 结束列*/private void mergeRegion(Sheet sheet, int firstRow, int lastRow, int firstCol, int lastCol) {sheet.addMergedRegion(new CellRangeAddress(firstRow, lastRow, firstCol, lastCol));}/*** 获取单元格的值* @param cell* @return*/public String getCellValue(Cell cell){if(cell == null) return "";if(cell.getCellType() == Cell.CELL_TYPE_STRING){return cell.getStringCellValue();}else if(cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){return String.valueOf(cell.getBooleanCellValue());}else if(cell.getCellType() == Cell.CELL_TYPE_FORMULA){return cell.getCellFormula() ;}else if(cell.getCellType() == Cell.CELL_TYPE_NUMERIC){return String.valueOf(cell.getNumericCellValue());}return "";}/*** 从excel读取内容*/public static void readContent(String fileName)  {boolean isE2007 = false;    //判断是否是excel2007格式if(fileName.endsWith("xlsx"))isE2007 = true;try {InputStream input = new FileInputStream(fileName);  //建立输入流Workbook wb  = null;//根据文件格式(2003或者2007)来初始化if(isE2007)wb = new XSSFWorkbook(input);elsewb = new HSSFWorkbook(input);Sheet sheet = wb.getSheetAt(0);     //获得第一个表单Iterator<Row> rows = sheet.rowIterator(); //获得第一个表单的迭代器while (rows.hasNext()) {Row row = rows.next();  //获得行数据System.out.println("Row #" + row.getRowNum());  //获得行号从0开始Iterator<Cell> cells = row.cellIterator();    //获得第一行的迭代器while (cells.hasNext()) {Cell cell = cells.next();System.out.println("Cell #" + cell.getColumnIndex());switch (cell.getCellType()) {   //根据cell中的类型来输出数据case HSSFCell.CELL_TYPE_NUMERIC:System.out.println(cell.getNumericCellValue());break;case HSSFCell.CELL_TYPE_STRING:System.out.println(cell.getStringCellValue());break;case HSSFCell.CELL_TYPE_BOOLEAN:System.out.println(cell.getBooleanCellValue());break;case HSSFCell.CELL_TYPE_FORMULA:System.out.println(cell.getCellFormula());break;default:System.out.println("unsuported sell type======="+cell.getCellType());break;}}}} catch (IOException ex) {ex.printStackTrace();}}}

执行结果如下：

{score=10, student=张三, course=语文, class=一（1）班}
{score=20, student=李四, course=语文, class=一（1）班}
{score=30, student=王五, course=语文, class=一（1）班}
{score=40, student=赵六, course=数学, class=一（1）班}
{score=50, student=田七, course=数学, class=一（1）班}
{score=60, student=周扒皮, course=数学, class=一（1）班}