Injecting literal values from properties file using spring annotations || @value || @Required
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- เผยแพร่เมื่อ 15 ต.ค. 2024
- This tutorial will guide you to inject literal values from properties file using spring framework. We will be using two annotations today. The first one is @value and the next one is @Required. Using the @value annotation we will be injecting value in Java side. Along with it we will be also learning how to load values from the properties file to spring configuration file(XML file). This will be one of the important things to learn as in the real world of spring application development, it’s pretty common that you will be doing things though properties file/property file.
Keeping these things in mind, At the end of this tutorial we will be creating a real-time scenario and we will load values from a property file to our spring application to have some DB call(through a JDBC connection). Hope this tutorial will help you to move ahead with spring annotations as well because we will be using @Value and @Required annotation.
Once we are done with this tutorial, we will be practicing most of the common spring core annotation in the next video.
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In 2024 your videos are helping me understand the spring framework clearly as no other explanation videos. Which also make me learn spring boot much easier.
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Thank you for this video. I'd like to add that since Spring 5.1, usage of @Required is deprecated, and you should instead just use constructor injection in place of setter injection if you have a required property.
Yes Bro...I was looking for these comment.
thank you
Than can we add @required in constructor injection?
@@kartikagrawal5399 No we can't....only we can use in setter injection
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man i cannot set values dynamically from a file within intellij ide
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Hey When Will you make videos for Spring boot
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I'm getting xmlns associated with element beans must be followed by = character
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Very useful video Thanks for that.
Nice Explanation. Thank you so much Abhilash.
got it . i have made the connection to JDBC using xml configuration. as you have said
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great explanation. Thank You
You explanation is awesome sir..please provide video on spring-hibernate integration
Thanks for video#7
Waiting for spring security and hibernate other video
Sure, Saurabh.. Security videos are in queue but that will take time as I am covering spring mvc and spring boot next.
Hibernate videos you can expect soon.
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Awesome work! appreciate the hard work you put into making the videos.
Excellent...thanks
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nice and clear explanation
ty for ur video i have just one question @Required annotation is deprecated how i can make a property required in new version
Thank you so much for the videos ! really appreciate what your are doing .can you please do videos on what issues or challenges we face during selenium testing so that we can tell in the interview purpose
I have completed the task and I will sending u
Thank you so much for amazing videos, waiting for Spring MVC.
Sir, I have observed that with field variable we can use only the @Value annotation and not the @Required annotation. If we do so, it gives BeanCreationException. we can have @Required at the setter method level only. Any thoughts on this please?
Hi ,I have a question regarding on JDBC connection. I've encountered several exceptions while attempting to establish the connection, and I wanted to ask for your guidance. Should we first create the 'Product' database before attempting the connection? I want to ensure that I'm following the correct procedure.
yes, first you have to create database.
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Hey Abhilash thanks to understanding me more clear about spring core and m requesting you to if possible please upload microservices videos at least how to start with microservices with spring boot.
Thank you so much Abhilash..I can't stop asking this, but can you please let me know when you will be publishing spring mvc/hibernate videos..at least tentative date please...
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Can we apply @value annotation for reference variable (e.g. employee or address) at filed level or at setter method? When we apply the @value annotation at field level and remove the setter method then how internally Ioc inject it's value to field?
Eagerly waiting for spring boot..Please upload it fast. Please abhilash please. I request you.
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I am taking this as a compliment 😃
Hi Abhilash, can you suggest books for Java backend.
Why we need to put "classpath:" in location attribute?
This is also working fine!
Because Spring does not know where to find the student-info.properties file. By mentioning "classpath:" the spring looks directly into the root of "src" folder.
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All the videos are really nice and useful for beginners, I have 1 doubt, what is the difference between setting annotations with field and setters, if I declare before field, then no need of setters. So what is the use of declaring annotation before setters.
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Abhilash, For declaring multiple placeholders in beans.xml , can we use this tag more then once?if yes then how? alternate method i found using commas we can declare multiple property file .But if want to explicitly define one file at a time then how to do that?
Thanks Abhilash for Amazing Videos! Great work.
@Required annotation is deprecated in Spring 5.1. Is there any other annotation which replaces @required?
@Autowired
Faced the same problem. Thanks for the solution Ranjith!
@@RanjithKumar-qj9mn thanks bro i also faced the same problem
Thank you big brother
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Great Bro.....
Thanks for that course. There something I still would like to know. Suppose I've a class (for instance User) and I need to create several beans from that class, to have available in the IOC. Unfortunately I cannot use @Component, that is the easiest way to get bean from Spring, so I've to use @Bean in the configuration Class. But for every bean I need to inject different values (for instance "billing code", "address", etc). How to manage all that in the annotation mode? (i.e. without using the xml config file). Thanks
I am sure by now you have figured it out but for anyone that may come along, here’s my answer to this question. You can define multiple User beans of the same type in the Config class. Since the name of each User bean or object will be different for the config class to compile, you will then refer to each specific bean you’ll want to use by the name use to define it in that class.
Can u provide spring boot tutorial to us
Thank you. I knew you are doing service for us. Thank you.
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You are Awesome Man listening makes boring but you proved as that is Wrong...
Do you have JDBC tutorials as well in your channel?
I HAVE NO WORDS.....THANK YOU
Great