Possible Duplicate:
Reading binary file from URLConnection
Now I have a URL:
(http://elsa.berkeley.edu/~saez/TabFig2005prel.xls for example, with http: scheme).
I need to access to this file and store it as a File object in my program so I can do my following work. So anyone knows how to make this to a File object? I have no idea how to covert a InputStream to a File.
Thank you Allan
How about using apache commons-io (http://commons.apache.org/io/)
It has a
FileUtils.copyURLToFile(URL,File);
int chunkSize = 500;
BufferedInputStream in = new java.io.BufferedInputStream(new URL("http://javakata6425.appspot.com/db_imgs/projectsBinaries/photoLib/photoLib.jar").openStream());
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream("d://temp//photoLib.jar"), chunkSize);
byte[] data = new byte[chunkSize];
int x = 0;
while ((x = in.read(data, 0, chunkSize)) >= 0) {
out.write(data, 0, x);
}
out.close();
in.close();
You can use the following code (assuming the InputStream object name is "content")
File myFile = new File("newFile.ext");
FileOutputStream fos = null;
try {
fos = new FileOutputStream(myFile);
int read = 0;
byte[] buff = new byte[1024];
while ((read = content.read(buff)) > -1)
fos.write(buff, 0, read);
} catch (IOException e1) {
/* do something? */
} finally {
if (fos != null) {
try { fos.close() } catch (IOException e2) {/* do something? */}
}
}
URL url = new URL("http://elsa.berkeley.edu/~saez/TabFig2005prel.xls");
InputStream in = url.openStream();
try {
OutputStream out = new FileOutputStream("output.xls");
try {
byte buf[] = new byte[4096];
for (int n = in.read(buf); n > 0; n = in.read(buf)) {
out.write(buf, 0, n);
}
} finally {
out.close();
}
} finally {
in.close();
}
pseudocode:
create FileWriter pointing to "localdrive/local_copy.xls"
foreach byte you can read from the input stream:
write the byte to the filewriter
flush the filewriter
close the filewriter
voila. You now have the file saved locally.
