File download to client... new Java user

[yarbrough40]

I'm a seasoned .net guy - new to Java. I'm Trying to do the simplest of things but can't figure it out. In my web form I want to create a csv file (from a json string) and present it to the user to download (I do not want to specify a directory - let the user do that)

I have this working code which writes my file to a directory but really all I want is for it to download in the browser - NOT write to a filepath. How is this done?

     JSONObject output = new JSONObject(jsonString);
     JSONArray docs = output.getJSONArray("myData");
     File file=new File("C:\\Work\\fromJSON.csv"); //DON'T WANT TO SPECIFY A DIRECTORY
     String csv = CDL.toString(docs);
     FileUtils.writeStringToFile(file, csv);

[Frinavale]

Can't you just write the content to the response's output stream like you would in ASP.NET?

-Frinny

[yarbrough40]

funny enough that didn't seem to work when I tried it but perhaps I wasn't doing it correctly - Thanks Frinny... I will revisit that path

[yarbrough40]

no luck. I can't even figure out how to do it with a simple text file.. This little sample writes my file out to a directory. How would I write it out to the client for download?... man I feel like an idiot : )

     String data = "My Text To Put In The File";
     byte[] byteData = data.getBytes();
     
     OutputStream out = new FileOutputStream("MyFile.txt");
     out.write(byteData);
     out.close();

[Frinavale]

I'm not seeing you using response.out as the stream.

Do you have access to a response object?

[yarbrough40]

I figured it out finally. I am using this within a Wavemaker project. Wavemaker has a bool property I did not see called "DownloadFi le" set that to true and it all works. I just LOVE when stupid little problems consume 3 full days : )
-
Once again, thanks for looking at it with me Frinny!