Downloading a binary file

[bruce_phipps]

I want to download a 4 meg binary file from a Linux server to my
standalone Java client program.
An example I have seen first creates a URL object, then creates an
Input Stream, then downloads data via a data buffer using read() and
write():

URL url = new URL("http://test.com/files/myfile");
InputStream in = url.openStream();
byte[] buf = new byte[4*1024]; //4k buffer
int bytesRead;
while ((bytesRead=in.read(buf)) != -1) {
out.write(buf,0,bytesRead);
}

Are there any simpler methods to do this?

Thanks
Bruce

 

[Gordon Beaton]

I want to download a 4 meg binary file from a Linux server to my
standalone Java client program. [...]
Are there any simpler methods to do this?

What part of the example do you think is too complex?

Perhaps this is easier for you:

Runtime.getRuntime().exec("curl -O http://test.com/files/myfile");

Or maybe just:

dwim("http://test.com/files/myfile");

/gordon

--

 

[Roedy Green]

I want to download a 4 meg binary file from a Linux server to my
standalone Java client program.

See the download method in the FileTransfer class.

http://mindprod.com/products1.html#FILETRANSFER

 

[bruce_phipps]

I want to download a 4 meg binary file from a Linux server to my
standalone Java client program. [...]
Are there any simpler methods to do this?

What part of the example do you think is too complex?

Perhaps this is easier for you:

Runtime.getRuntime().exec("curl -Ohttp://test.com/files/myfile");

Or maybe just:

dwim("http://test.com/files/myfile");

/gordon

--

Thanks. curl is not available on the Solaris client I am using.
Bruce

 

[Arne Vajhøj]

I want to download a 4 meg binary file from a Linux server to my
standalone Java client program.
An example I have seen first creates a URL object, then creates an
Input Stream, then downloads data via a data buffer using read() and
write():

URL url = new URL("http://test.com/files/myfile");
InputStream in = url.openStream();
byte[] buf = new byte[4*1024]; //4k buffer
int bytesRead;
while ((bytesRead=in.read(buf)) != -1) {
out.write(buf,0,bytesRead);
}

Are there any simpler methods to do this?

No. That is the method.

(it is possible to make it more advanced and check HTTP header etc.)

Arne

 

[Arne Vajhøj]

I want to download a 4 meg binary file from a Linux server to my
standalone Java client program. [...]
Are there any simpler methods to do this?

What part of the example do you think is too complex?

Perhaps this is easier for you:

Runtime.getRuntime().exec("curl -O http://test.com/files/myfile");

That is simple per poster request, but I do not consider
it a recommendable solution.

Arne

 

[Chase Preuninger]

It may be simpler without the buffer, and I think you can also use the
read bytes method, which would read the data into an array of bytes.

 

[Gordon Beaton]

That is simple per poster request, but I do not consider
it a recommendable solution.

That suggestion, just like the one that you didn't quote, was not a
serious one. I'm still interested to hear what the OP thinks was too
complex in the example he posted though.

/gordon

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