자바(JAVA) 파일 다운로드

FileInputStream fin = null;

OutputStream os  = null;

File file  = null;

 

String path = "/testServer/voice/";

String fileName = "testFile.exe";

String sFilePath = path + fileName;

try{

file = new File(sFilePath);

fin = new FileInputStream(file);

}catch(FileNotFoundException fnfe){

System.out.println("FILE_ERROR...");

}

 

response.reset();

 

if(fin != null){

   String agentType = request.getHeader("User-Agent");

   if (agentType.indexOf("MSIE 5.5") != -1){

   System.out.println("MSIE 5.5");

 

   response.setContentType("doesn/matter; charset=UTF-8;");

   response.setHeader("Content-Disposition", "attachment; filename=" + fileName + ";");

   }else{

   response.setContentType("application/smnet");

   response.setHeader("Content-Type", "application/x-msdownload; charset=UTF-8;");

   response.setHeader("Content-Disposition","attachment; filename=" + fileName + ";");

   System.out.println("MSIE ELSE ");

   }

   response.setHeader("Content-Transfer-Encoding","binary;");

   response.setHeader("Content-Length",""+file.length());

   response.setHeader("Pragma","no-cache;");

   response.setHeader("Expires","-1;");

    

   os = response.getOutputStream();

   byte[] abStream = new byte[4096];

   int leng = 0;

   while((leng = fin.read(abStream)) > 0){

   os.write(abStream, 0, leng);

   }

}else{

   response.getWriter().println("<script language='javascript'>");

   response.getWriter().println("alert(\"실패하였습니다.\");");

   response.getWriter().println("history.back(-1);");

   response.getWriter().println("</script>");

}