/**
* 实现文件另存功能
*
* @par
am text
* 文件内容
* @param fileName
* 文件名称
* @return
*/
PRotected String renderFile(String text, String fileName)
t
hrows IOException
{
response.addHeader("Content-Dispos
ITion", "attachment; filename="
+ fileName);
response.setContentTy
PE("application/
octet-stream");
response.setCharacterEncoding("GB2312");
response.getWriter().write(text);
response.flushBuffer();
response.getWriter().close();
return null;
}
/** *//**
* 提供下载的方法
* @return
*/
p
ublic String down()
{
String dir = getFullPath() + "/upload/file/";
try
{
if (!FileUtils.exists(dir))
{
new File(dir).mkdirs();
}
Random r = new Random(
System.
currentTimeMillis());
Integer randomInt = r.nextInt();
this.renderFile("
test content:" + randomInt,randomInt + ".txt");
}
catch (IOException e)
{
e.printStackTrace();
this.renderText(e.getMessage());
}
return null;
}