生成excel并发送给客户端

 1 /**
 2      * 将生成的excel发送给客户端
 3      * @param response
 4      * @param os 输出流
 5      * @param fileName excel文件名称
 6      */
 7     public static void  sendExcel(HttpServletResponse response , ByteArrayOutputStream os, String fileName){
 8         byte[] content = os.toByteArray();
 9         InputStream is = new ByteArrayInputStream(content);
10         // 设置response参数，可以打开下载页面
11         BufferedInputStream bis = null;
12         BufferedOutputStream bos = null;
13         try {
14             
15             String downLoadName = new String((fileName+".xls").getBytes("gbk"), "iso8859-1");  
16             response.reset();
17             response.setContentType("applicationnd.ms-excel;charset=utf-8");
18             response.setHeader("Content-Disposition", "attachment;filename="+ downLoadName);
19             ServletOutputStream out = response.getOutputStream();
20             bis = new BufferedInputStream(is);
21             bos = new BufferedOutputStream(out);
22             byte[] buff = new byte[2048];
23             int bytesRead;
24             while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
25                 bos.write(buff, 0, bytesRead);
26             }
27         } catch (final IOException e) {
28             e.printStackTrace();
29         } finally {
30             if (bis != null)
31                 try {
32                     bis.close();
33                 } catch (IOException e) {
34                     e.printStackTrace();
35                 }
36             if (bos != null)
37                 try {
38                     bos.close();
39                 } catch (IOException e) {
40                     e.printStackTrace();
41                 }
42         }
43     }