/** *//**

* 实现文件另存功能

*

* @param text

* 文件内容

* @param filename

* 文件名称

* @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;

}

下载的action:

/** *//**

* 提供下载的方法

* @return

*/

public 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;

}

更多信息请查看IT技术专栏