public HttpServletResponse download(String path, HttpServletResponse response) {
try {
//Path is the path to the file you want to download.
File file = new File(path);
//Get the file name.
String filename = file.getName();
//Gets the suffix name of the file.
String ext = filename.substring(filename.lastIndexOf(".") + 1).toUpperCase();
//Download the file as a stream.
InputStream fis = new BufferedInputStream(new FileInputStream(path));
byte[] buffer = new byte[fis.available()];
fis.read(buffer);
fis.close();
//To empty the response
response.reset();
//Set the Header for response
response.addHeader("Content-Disposition", "attachment;filename=" + new String(filename.getBytes()));
response.addHeader("Content-Length", "" + file.length());
OutputStream toClient = new BufferedOutputStream(response.getOutputStream());
response.setContentType("application/octet-stream");
toClient.write(buffer);
toClient.flush();
toClient.close();
} catch (IOException ex) {
ex.printStackTrace();
}
return response;
}
public void downloadLocal(HttpServletResponse response) throws FileNotFoundException {
//Download local files
String fileName = "Operator.doc".toString(); //The default save name for the file
//Read to the stream
InputStream inStream = new FileInputStream("c:/Operator.doc");//File location
//Format the output
response.reset();
response.setContentType("bin");
response.addHeader("Content-Disposition", "attachment; filename="" + fileName + """);
//Loop out the data in the stream
byte[] b = new byte[100];
int len;
try {
while ((len = inStream.read(b)) > 0)
response.getOutputStream().write(b, 0, len);
inStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void downloadNet(HttpServletResponse response) throws MalformedURLException {
//Download network files
int bytesum = 0;
int byteread = 0;
URL url = new URL("windine.blogdriver.com/logo.gif");
try {
URLConnection conn = url.openConnection();
InputStream inStream = conn.getInputStream();
FileOutputStream fs = new FileOutputStream("c:/abc.gif");
byte[] buffer = new byte[1204];
int length;
while ((byteread = inStream.read(buffer)) != -1) {
bytesum += byteread;
System.out.println(bytesum);
fs.write(buffer, 0, byteread);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}