How to read and display a CSV file in Java

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In this video, Marcus Hellberg shows you how to import a CSV file in Java and display it in a data grid. The tutorial covers loading CSV files from the classpath and uploading files through the browser. The tutorial uses Spring Boot, Maven, OpenCSV, and Vaadin.

0:00 - Introduction
0:27 - Project setup
1:14 - Importing the project in IntelliJ
2:26 - Running the application
4:06 - Adding a CSV file to the classpath
4:53 - Creating a data grid for displaying a CSV
6:39 - Reading a CSV from the classpath
7:56 - Reading a CSV with Open CSV and displaying it in a Vaadin Grid
13:43 - Uploading a CSV from the browser
15:43 - Outro

  1. vaadinofficial
  2. Vaadin
  3. java
  4. tutorial
  5. csv
  6. opencsv
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Комментарии
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Impressive, thank you very much for this video. Long time ago I wanted to use Vaadin, now I realize that is way way way better than before, To hell Javascript family!.

gonzalooviedo
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Thanks for the video, I really learned a lot. is there a way to go a step further and display the datasets and tables as graphs?

mouadtamim
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I have imported a csv (300 000 rows) and I have created a button to randomly get 100 000 rows and print them. The csv takes seconds, but the 100 000 rows takes minutes, is there a way to speed it up?

kgeonly
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Hey Marcus. I have tried with xlsx, and it doesn't work. Could you suggest some alternative. I'm just using POI to read excel. It's an existing project

Gauthiermbaya
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Can we do this similar stuff with spring jpa to read the database tables?

RajeshSamson