#JAVA COPY INPUTSTREAM TO FILE HOW TO#
But after that i dont know how to process the buffered writer in my calling program to save the file. In My Server Class, I have created file and written some sample content inside it using buffered writer.Īfter that I have returned the buffered writer to my calling program. I have written below sample program based upon my earlier modified program. Client requests for a file and my server program creates the file and writes contents into the file and sends it back to client. what if i need to send this file to another method which is in a different class or if its in a different machine altogether like a web service.īasically like a client server model. Using py() method java.io.InputStream Main public static void downloadFile(URL url. Thanks again for the detailed explanation !!! You have however too many empty lines in that method. The second version was correctly spaced. Your line 20 would be a lot better with a bit of space between tokens, like this:. Please have a look at the formatting in your post. That class looks so simple and good that I added documentation comments and shall keep it for future reference. I used the Formatter( String) constructor. Public static void main(String args) throws IOException Note that a Scanner can take a Path as its constructor parameter, but a Formatter can't. Please advise what is actually going wrong in my modified program. I thought it will write 1024 bytes at a time and the program would be faster, but it stops in the middle and when i open the outputfile it was just having below as content. I have declared byte array and used that as a buffer size to read from the inputstream. So I have modified the program as the second program mentioned below. It was copying one byte at a time thats why it was slow. But the thing is its too slow, it takes more time to complete.
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I have written a small program to copy the file from input stream and write the same to a new file.īelow is my program which works fine.