excel 表头合并 和拆分的例子

import java.io.File;
import java.io.IOException;

import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

public class Test {

public static void main(String[] args) throws Exception {
String path = "e:/test.xlsx";
writeExcel(path);
}

public static void writeExcel(String fileName) throws IOException,
RowsExceededException, WriteException {
// 构建一个工作薄
WritableWorkbook workbook = Workbook.createWorkbook(new File(fileName));
if (workbook == null) {
return;
}
// 获取第一个sheet
WritableSheet sheet = workbook.createSheet("sheet1", 0);
if (sheet == null) {
return;
}
WritableFont bold = new WritableFont(WritableFont.createFont("微软雅黑"),
12, WritableFont.NO_BOLD);
WritableCellFormat titleFormate = new WritableCellFormat(bold);// 生成一个单元格样式控制对象
titleFormate.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);// 设置边框
titleFormate.setAlignment(jxl.format.Alignment.CENTRE);// 单元格中的内容水平方向居中
titleFormate.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);// 单元格的内容垂直方向居中
// 创建表头
sheet.mergeCells(0, 0, 0, 1);// 单元格合并
sheet.addCell(new Label(0, 0, "时间", titleFormate));

sheet.mergeCells(1, 0, 4, 0);
sheet.addCell(new Label(1, 0, "新增积分总数", titleFormate));

sheet.addCell(new Label(1, 1, "交易", titleFormate));
sheet.addCell(new Label(2, 1, "扫码", titleFormate));
sheet.addCell(new Label(3, 1, "爱互动", titleFormate));
sheet.addCell(new Label(4, 1, "合计", titleFormate));

sheet.mergeCells(5, 0, 5, 1);
sheet.addCell(new Label(5, 0, "消费积分总数", titleFormate));

sheet.mergeCells(6, 0, 11, 0);
sheet.addCell(new Label(6, 0, "剩余有效积分总数", titleFormate));

sheet.addCell(new Label(6, 1, "店铺会员", titleFormate));
sheet.addCell(new Label(7, 1, "中级会员", titleFormate));
sheet.addCell(new Label(8, 1, "高级会员", titleFormate));
sheet.addCell(new Label(9, 1, "VIP会员", titleFormate));
sheet.addCell(new Label(10, 1, "SVIP会员", titleFormate));
sheet.addCell(new Label(11, 1, "合计", titleFormate));

sheet.mergeCells(12, 0, 12, 1);
sheet.addCell(new Label(12, 0, "过期积分数", titleFormate));

WritableCellFormat bodyFormate = new WritableCellFormat();// 生成一个单元格样式控制对象
bodyFormate.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);// 设置边框

for(int i = 2; i <= 12; i++){
sheet.addCell(new Label(0, i, "2017-04-08", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
sheet.addCell(new Label(0, i, "0", bodyFormate));
}

// 设置单元格的宽度
sheet.setColumnView(5, 20);
sheet.setColumnView(6, 11);
sheet.setColumnView(7, 11);
sheet.setColumnView(8, 11);
sheet.setColumnView(9, 11);
sheet.setColumnView(10, 11);
sheet.setColumnView(11, 11);
sheet.setColumnView(12, 20);

// 从内存中写入文件中
workbook.write();
// 关闭资源，释放内存
workbook.close();
}

}