部分代码如下：（setCell是我自己封装的方法）
cell=setCell(1,2,sheet1);//第一行第二格
cell.setCellValue("AAA");
cell=setCell(1,3,sheet1);//第一行第三格
cell.setCellValue("bbb");
wb.setRepeatingRowsAndColumns(0,1,2,0,0);//合并2，3格但是不行输出还是分开的两格，多谢帮忙
cell=setCell(1,2,sheet1);//第一行第二格
cell.setCellValue("AAA");
cell=setCell(1,3,sheet1);//第一行第三格
cell.setCellValue("bbb");
wb.setRepeatingRowsAndColumns(0,1,2,0,0);//合并2，3格但是不行输出还是分开的两格，多谢帮忙
sheet.addMergedRegion(new Region(1,(short)2,1,(short)3));
import org.apache.poi.hssf.util.Region;import java.io.IOException;
import java.io.FileOutputStream;/**
* An example of how to merge regions of cells.
*
* @author Glen Stampoultzis (glens at apache.org)
*/
public class MergedCells
{
public static void main(String[] args)
throws IOException
{
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("new sheet"); HSSFRow row = sheet.createRow((short) 1);
HSSFCell cell = row.createCell((short) 1);
cell.setCellValue("This is a test of merging"); sheet.addMergedRegion(new Region(1,(short)1,1,(short)2)); // Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close(); }
}