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/** *//**

* 實現(xiàn)文件另存功能

*

* @param text

* 文件內(nèi)容

* @param fileName

* 文件名稱

* @return

*/

protected String renderFile(String text, String fileName)

throws IOException

{

response.addHeader("Content-Disposition", "attachment; filename="

+ fileName);

response.setContentType("application/octet-stream");

response.setCharacterEncoding("GB2312");

response.getWriter().write(text);

response.flushBuffer();

response.getWriter().close();

return null;

}

下載的action:

/** *//**

* 提供下載的方法

* @return

*/

public String down()

{

String dir = getFullPath() + "https://upload.ynpxrz.com/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;

}

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