HSSFWorkbook创建excel

//创建一个新的excel
HSSFWorkbook wb = new HSSFWorkbook();
//创建sheet页
HSSFSheet sheet = wb.createSheet("KvOne");
//创建header页
HSSFHeader header = sheet.getHeader();
//设置标题居中
header.setCenter("标题");
//创建3行
HSSFRow[] row = new HSSFRow[3];
//设置第一行为Header
row[0] = sheet.createRow(0);
HSSFCell headerCell0 = row[0].createCell(10);
headerCell0.setCellValue(new HSSFRichTextString("标题"));
// 设置第二行为列名
row[1] = sheet.createRow(1);
HSSFCell[] headerCell1 = new HSSFCell[15];
for (int i = 0; i < 15; i++) {
    headerCell1[i] = row[1].createCell(i);
    headerCell1[i].setCellValue(new HSSFRichTextString("相应的列名"));
}
//第3行插入数据
row[2] = sheet.createRow(2);
HSSFCell[] headerCell12 = new HSSFCell[15];
for (int i = 0; i < 15; i++) {
    headerCell12[i] = row[2].createCell(i);
    headerCell12[i].setCellValue(new HSSFRichTextString("相应的数据值"));
}
//设置footer
sheet.setGridsPrinted(false);
HSSFFooter footer = sheet.getFooter();
footer.setRight("page   " + HeaderFooter.page() + "of" + HeaderFooter.numPages());