/ *
* Download.java
* /
Package com.zy.oa.util;
Import java.io. *;
Import java.text. *;
Import java.util. *;
Import javax.servlet. *;
Import javax.servlet.http. *;
Import java.net. *;
/ **
* Implement download function
* /
Public class download {
Public void Download (httpservletResponse response,
String headname, string fileurl) throws exception {
Logger.log ("Begin Download" HeadName);
IF (". jpg") || (HeadName.endSwith (". gif"))) {
// no need setting content type and header
} else if (HeadName.endSwith (". txt")) {
Response.setContentType ("text; charset = GB2312);
Response.setHeader ("Content-Disposition",
"attachment; filename =" headname);
} else {
Response.setContentType ("Application / Doc; Charset = GB2312);
Response.setHeader ("Content-Disposition",
"attachment; filename =" headname);
}
String fileurl = fileurl;
Logger.log (fileurl);
IF (fileurl == NULL)
Return;
Try {
File file = new file (fileurl);
FileInputStream Bis = New FileInputStream (File);
OutputStream Bos = response.getOutputStream ();
BYTE [] BUFF = New byte [1024];
INT readcount = 0;
INT i = 0;
Readcount = Bis.read (BUFF);
While (READCOUNT! = -1) {
Bos.write (buff, 0, readcount);
Readcount = Bis.read (BUFF);
}
Logger.log ("Read Finished!");
IF (bis! = null)
bis.close ();
IF (bos! = null)
Bos.close ();
} catch (exception e) {
E.PrintStackTrace ();
Throw e;
}
}
}
