How to download internet file using java

When I click on the export button a native windows dialogue box comes up. Image of the pop up. I have to click on the Save button. For this I tried using AutoIT but its not working. This did not work. That did not work either. There is some problem with the web driver I suppose because I tried printing a line after exportbutton.

So, the problem was that the cursor gets stuck sometimes when you call the click function. So instead of clicking the button I tried this:.

Sorry, I wrote approach how to upload the file. Before it, you can paste String with file path directory where you want to upload your file. Auto IT is not required to handle this. If we give element. This is a hack by Dave Haefner.

If you don't care if a file was downloaded or not and you want to confirm only that a file can be downloaded, you can use an HTTP request. Instead of downloading the file you'll receive the header information for the file which contains things like the content type and length.

With this information, you can confirm the file is you expect. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Collectives on Stack Overflow. Learn more. Asked 4 years, 10 months ago. Here, we are using BufferedInputStream to download a file. Then, we opened an InputStream from the file using openStream method. Next, in order to be able to download large files we wrapped the input stream into a BufferedInputStream.

Also, we created a FileOutputStream by providing a path on the disk where we want the file to be saved. Next, we use a bucket of byte[] to read bytes from the input stream and writing onto the output stream iteratively. This example, demonstrates how we can use our own buffer for example bytes so that downloading large files should not consume huge memory on our system.

To do that, we have used try-with-resources block for respective streams instantiation. While writing the previous example, we had to take care of a lot of logic.

Thankfully, Java Files class provides the copy method which handles these logic internally. The Java NIO package offers a faster way of data transfer, which does not buffer data in memory. Hence, we can easily work with large files.

In order to use Java NIO channels, we need to create two channels. One channel will connect to the source and other to the target. The newsletter is sent every week and includes early access to clear, concise, and easy-to-follow tutorials, and other stuff I think you'd enjoy! No spam ever, unsubscribe at any time.

How to download and save a file from Internet in Java. You might also like How to convert a string to an array in Java How to convert an array to a string in Java How to format a string in Java How to pause the code execution in Java How to convert an integer to a string in Java.