Java导出Excel合并单元格

1、问题背景

利用POI导出Excel表格，在导出的过程中涉及到双表头，即需要合并单元格

2、实现源码

/**
 *
 * @Project:Report
 * @Title:MergeCell.java
 * @Package:com.you.excel
 * @Description:
 * @Author:YouHaiDong
 * @Date:2015年11月4日 下午2:36:46
 * @Version:
 */
package com.you.excel;

import java.io.FileOutputStream;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.Region;

/**
 * <p>合并单元格</p>
 * @ClassName:MergeCell
 * @Description:
 * @Author:YouHaiDong
 * @Date:2015年11月4日 下午2:36:46
 *
 */
public class MergeCell
{
	/**
	 * 合并单元格
	 * @Title:MergeCell
	 * @Description:
	 * @param args
	 * @Date:2015年11月4日 下午2:36:46
	 * @return: void
	 * @throws Exception
	 */
	@SuppressWarnings({ "resource", "deprecation" })
	public static void main(String[] args) throws Exception
	{
		//创建workbook
		HSSFWorkbook workbook = new HSSFWorkbook();
		//创建sheet页
	    HSSFSheet sheet = workbook.createSheet("学生表");
		//创建单元格
		HSSFRow row = sheet.createRow(0);
		HSSFCell c0 = row.createCell(0);
		c0.setCellValue(new HSSFRichTextString("学号"));
		HSSFCell c1 = row.createCell(1);
		c1.setCellValue(new HSSFRichTextString("姓名"));
		HSSFCell c2 = row.createCell(2);
		c2.setCellValue(new HSSFRichTextString("性别"));
		HSSFCell c3 = row.createCell(3);
		c3.setCellValue(new HSSFRichTextString("年龄"));
		HSSFCell c4 = row.createCell(4);
		c4.setCellValue(new HSSFRichTextString("2015年分数"));
		HSSFCell c5 = row.createCell(7);
		c5.setCellValue(new HSSFRichTextString("2014年分数"));
		HSSFRow row1 = sheet.createRow(1);
		HSSFCell c6 = row1.createCell(4);
		c6.setCellValue(new HSSFRichTextString("语文"));
		HSSFCell c7 = row1.createCell(5);
		c7.setCellValue(new HSSFRichTextString("数学"));
		HSSFCell c8 = row1.createCell(6);
		c8.setCellValue(new HSSFRichTextString("外语"));
		HSSFCell c9 = row1.createCell(7);
		c9.setCellValue(new HSSFRichTextString("语文"));
		HSSFCell c10 = row1.createCell(8);
		c10.setCellValue(new HSSFRichTextString("数学"));
		HSSFCell c11 = row1.createCell(9);
		c11.setCellValue(new HSSFRichTextString("外语"));

		Region region1 = new Region(0, (short)0, 1, (short)0);
		Region region2 = new Region(0, (short)1, 1, (short)1);
		Region region3 = new Region(0, (short)2, 1, (short)2);
		Region region4 = new Region(0, (short)3, 1, (short)3);
		Region region5 = new Region(0, (short)4, 0, (short)6);
		Region region6 = new Region(0, (short)7, 0, (short)9);
		sheet.addMergedRegion(region1);
		sheet.addMergedRegion(region2);
		sheet.addMergedRegion(region3);
		sheet.addMergedRegion(region4);
		sheet.addMergedRegion(region5);
		sheet.addMergedRegion(region6); 

		FileOutputStream stream = new FileOutputStream("d:/student.xls");
		workbook.write(stream);
	}

}

3、实现结果

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