jsp文件下载

jsp部分:

<form id="inputForm" action="${ctx}/importandexport/testCount/export" method="post"  enctype="multipart/form-data" >
<select name="type" class="input-xlarge required">
<option checked="checked" value = "">请选择导出方案</option>
<option value = "dianFen">电分统计</option>
<option value = "change">转化统计</option>
<option value = "taxes">纳税额统计</option>
         </select>
<input class="save" type = "submit" vlaue = "导出"/>
</form>

java部分:

OutputStream out = null; 
try { 
response.reset(); 
response.setContentType("application/octet-stream; charset=utf-8"); 
response.setHeader("Content-Disposition", "attachment; filename=" + file.getName()); 
out = response.getOutputStream(); 
out.write(FileUtils.readFileToByteArray(file)); 
out.flush(); 
} catch (IOException e) { 
e.printStackTrace(); 
} finally { 
if (out != null) { 
try { 
out.close(); 
} catch (IOException e) { 
e.printStackTrace(); 
} 
} 
}