如何在没有servlet的下载路径下从浏览器下载文件

Question

I am working on Spring Jhipster java application with front end in angularjs. My requirement is to export data in csv file then download that exported file to download path of browser.

I know it can be done using servlet, but we are not using servlet then how can I accomplish without servlet using core java code.

Answer 1

I am confused, if you are exporting csv file and you have that file object then you can easily copy this file with FileUtils.copyFile(source, dest); or

private static void copyFileUsingChannel(File source, File dest) throws IOException {
FileChannel sourceChannel = null;
FileChannel destChannel = null;
try {
    sourceChannel = new FileInputStream(source).getChannel();
    destChannel = new FileOutputStream(dest).getChannel();
    destChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
   }finally{
       sourceChannel.close();
       destChannel.close();   }}

Hope it is helpful.