Hey I am pretty new to using the Spring Framework and was just trying to get an application to work for practice but I am getting the following error in my stack trace: Cannot invoke “com.gabriel.schoolapp.repository.UsersRepo.findAll()” because “this.usersRepo” is null This is my mode…
Tag: backend
Java Scheduler to Mail
Given that I have two scheduled component classes uploading files respectively. I created a sending email method for each of them in order to send a reminder email to myself in case any uploading exceptions happened. the flow like this: Scheduler One — if exception during uploading —> sending a…
When developing the back-end, do you want to believe that the front-end data will not go out of scope, and reduce some data verification
In the scenario where the front-end and back-end are separated and developed, what the back-end does is to receive the data transmitted by the front-end, perform corresponding processing, and finally return the processing result information. So, for the data sent by the front end (whether it is Get or Post), …
How can I find email addresses on other sites by entering a domain address?
Using Java, for example, when I search with the domain name “trendyol.com”, can I find domain-related mails on different sites? http://olaybende.com/acayip/trendyol-corona-virusu-kaynakli-fahis-fiyatlarla-ilgili-aciklama-yapti Mar 5, 2022 http://digitalage.com.tr/trendyoldan-koronavirusle-beraber-…
How do I retrieve particular List of element from MongoDB Using findById from another List => SubList from MainList?
How To Retrieve this list: When passing this list [id]: Answer I just figured out an answer for my question and it’s as follows: In the mongo repository just declare a custom find method: Then use it as a normal find method => [query] in your business logic layer and controller layer.