Spring Batch of Death: The brutal horror of 3 AM is now over.

Kilgu hyung... I watched it all the way to the end. Started with Kim**'s Spring Boot in mid-June, then hit Lee**'s TDD, and finally in mid-August I entered Kilgu hyung's Spring Batch course and completed it!!! I skipped the missions here and there because work was busy and my skills are still tiny as a bean, but now I've mastered how Spring Batch works... Now... I will definitely replace the batch processing server of our project that's always running dangerously on patches with Spring Batch someday... If I had known something like this existed, I would have built it with Spring Batch from the beginning, which is such a shame... But if it weren't for Kilgu hyung, I embarrassingly would have never known about Spring Batch forever... Thank you so much for creating the course!! And throughout the entire course, I was amazed by Kilgu hyung's sharp expertise and gave tons of thumbs up and praise!! Thank you~!

Kilgu-hyung! I'd planned to leave a review after finishing the course, but I got so emotional watching the lectures that I'm writing it now. As Kilgu-hyung said early in the lecture, studying with text is truly difficult, but it definitely seems to stick in your mind more. Thanks to Kilgu-hyung's writing, it's great to learn so enjoyably and without difficulty. Thank you for such an incredibly cost-effective lecture, and I look forward to your future courses!

Looking at the curriculum, I was a bit unsure, but whether it's thanks to the concept or Kilgu-hyung's writing skills, I understand it well. It's my first text-based lecture, and since there aren't many lectures related to Spring Batch itself, I bought it without much expectation, but I think I made a good choice. If you release other lectures on topics I'm interested in, I would take them without hesitation next time. I think you've got the concept right. Good good.

Death's Spring Batch course, this is truly the path of a real system executioner...☠️ If you thought Spring Batch was just another ordinary batch framework, you're gravely mistaken. kill-9's course doesn't give you theory—it gives you real weapons to survive in the bloody battlefield of actual combat. Flat files? Fixed-length? Complex log files? Instead of just saying "figure it out yourself," he explains everything sharp as a blade so you can actually use it in real work situations. Even when choosing a single delimiter, you'll understand "why it has to be done this way." Code, explanations, practice, execution commands... the entire course is filled with the mindset of "this is real combat." You're not just learning—you feel like you're becoming a 'batch terminator.' And the more you listen, the more confidence builds that someday you too will be able to leave a mark on systems with a single line of open source code. Batch prepared for death—are you still hesitating? The moment you take this course, you too become a true member of the 'kill-9 squad.' ☠️🔥

Text-based lectures.. I love being able to dissect, savor, and enjoy them at my own pace. Just as intended by the lecture format, I love not having to pause unnecessarily or use the rewind button. I just hope you'll provide more lectures💀☠️

Bro, keep the updates coming when versions upgrade! I'm counting on you, okay?!

It's interesting. It's suggestive. I wonder if it will become a legendary lecture later... (Content roughly about rm -rf)

At first, I was skeptical because of the low price and text-based format, but it seems like a really good course. I had been using batch processing without knowing anything about it, but while taking the course, I was able to clearly understand things that had confused me before (the scope of transaction application, why tasklets should be used, the reason for sending FCM infinitely), which is great. The creator's feedback is quick, comprehensive and detailed, and seems to highlight the important parts well.