在firebug下面我可以看到后台的2.9M的数据已经传到了前台，可是就是没有显示保存文件那样的对话框出来，真心不知道怎么回事了。。。。
下面是我网前台返回数据流的代码，希望大家能够帮个忙看看究竟怎么回事。。。
@RequestMapping("downLoadSelect")
public void downloadSelect(int[] ids, HttpServletResponse response, HttpServletRequest request){
File zipFile = null;
try {
zipFile = tupianxxService.downLoad(request,response, ids);
} catch (Exception e1) {
e1.printStackTrace();
}
response.reset();
response.setCharacterEncoding("utf-8");
response.setContentType("APPLICATION/OCTET-STREAM");
response.setHeader("Content-Disposition", "attachment;fileName=abc.zip");
try {
InputStream ins=new FileInputStream(zipFile);
OutputStream bout = new BufferedOutputStream(response.getOutputStream());
byte[] b=new byte[1024];
int length;
while((length=ins.read(b))>0){
bout.write(b,0,length);
}
bout.flush();
bout.close();
ins.close();
} catch (Exception e) {
e.printStackTrace();
}
}
