一、通过浏览器提供下载，使文件直接以流的形式响应客户端浏览器。不多说了，直接上代码吧。
public void downloadExcel(HttpServletRequest request,HttpServletResponse response) throws RowsExceededException, WriteException, IOException {
OutputStream os = response.getOutputStream();// 取得输出流
response.reset();// 清空输出流
response.setHeader(“Content-disposition”, “attachment; filename=testRed.xls”);// 设定输出文件头
response.setContentType(“application/msexcel”);// 定义输出类型
WritableWorkbook wbook = Workbook.createWorkbook(os); // 建立excel文件
String tmptitle = “测试数据”; // 标题
WritableSheet wsheet = wbook.createSheet(tmptitle, 0); // sheet名称
// 设置excel标题
WritableFont wfont = new WritableFont(WritableFont.ARIAL, 16, WritableFont.BOLD, false,
UnderlineStyle.NO_UNDERLINE, Colour.BLACK);
WritableCellFormat wcfFC = new WritableCellFormat(wfont);
wcfFC.setBackground(Colour.AQUA);
wsheet.addCell(new Label(1, 0, tmptitle, wcfFC));
wfont = new jxl.write.WritableFont(WritableFont.ARIAL, 14, WritableFont.BOLD, false,
UnderlineStyle.NO_UNDERLINE, Colour.BLACK);
wcfFC = new WritableCellFormat(wfont);
// 开始生成主体内容
wsheet.addCell(new Label(0, 2, “姓名”));
wsheet.addCell(new Label(1, 2, “邮箱”));
// SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”);
Map<String, String> map = new HashMap<String, String>();
map.put(“Red1”, “it_red@sina.com”);
map.put(“Red2”, “it_red@sohu.com”);
map.put(“Red3”, “it_red@163.com”);
int count = 0;
for (String key : map.keySet()) {
wsheet.addCell(new Label(0, count + 3, key));
wsheet.addCell(new Label(1, count + 3, map.get(key)));
count++;
}
// 主体内容生成结束
wbook.write(); // 写入文件
wbook.close();
os.close(); // 关闭流
}
}
二、在jsp页面不支持使用ajax，最好使用
window.location.href=”后端路径”;的方式
