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83 - ===== EXAM Spring Core & Spring MVC - Online Shop =====/001 EXAM Spring Core & Spring MVC.mp4

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83 - ===== EXAM Spring Core & Spring MVC - Online Shop =====/001 EXAM Spring Core & Spring MVC_en.srt

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-Hello, Tim.
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-By this moment in our course, we have learned a lot about Spring Corps and Spring.
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-And we see now this time to practice your skills.
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-And I spent a lot of time in order to prepare for your special production related tasks.
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-Uses a whole course Java from zero to first job together with all my students who develop online shop
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-web application.
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-Usually, after learning each new topic, we apply our knowledge to improve our solution.
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-Today we are going to make the same scene in order to practice the skills and knowledge that we get
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-After learning Spring Corps and Spring and we see topics on the screen, you can see the task description.
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-You can find the reference to this document in attachments to the video.
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-Let me describe the task and explain to you what is expected from you during this task.
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-So the first thing that you have to do to a complete project of online shop that is completely working
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-Web application.
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-It just doesn't have spring integration yet.
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-We will take this solution and will improve it.
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-I believe that this is just a great task for all my students because when you refactor the code within
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-the service and you integrate spring core and spring and we see it is easier for you to build analogy
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-between servlet and spring and we see thus it is easier for you to understand how all these things work.
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-That's why I believe that this is just an amazing exercise for students after completing it using the
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-templates provided, I give you the guarantees that you would understand Spring Corps and Spring and
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-you see like never before.
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-Let's continue.
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-As you can see, this is Maimon Memorial project.
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-The second step is kind of generic one.
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-Just make sure that you can run the project and that it can be started easily.
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-Please follow the steps from the file in order to configure the database on your local environment.
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-The next step.
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-Understand how application works.
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-Navigate through the application on the stand and scenarios just in case I left here as a reference
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-to the business requirements for the application.
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-Feel free to read through them.
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-Knowing the way how our online shop should behave, it will be easier for you to understand what should
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-be fixed and how application should work.
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-After factoring and finally the poor piece of our exam task, we have to integrate spring or spring.
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-Can we see into this project what can be considered as integration of screen and screen?
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-We see we need to be specific in the definition of the success criteria so far.
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-This project uses silhouettes technology.
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-You need to make a revision of the project and make appropriate changes.
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-First of all, we need to define spring context.
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-It is up to you what type of configuration you would like to use.
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-Annotation based or XML based.
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-My course will use different types of configuration and you already understand that this is a matter
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-of style rather than some strict rules here.
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-One or another approach so describes a configuration.
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-Define the spring beans.
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-Configure other beans using dependency injection with regards to the screen can be see you have to configure
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-dispatch server.
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-Also view all the existence of lets and configure request mappings.
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-Feel free to refactor the code as you feel needed.
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-Take advantage of using the request forum and modal attribute integrate hibernate validation of model
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-attributes, integrate properties and use property source for the application.
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-Also, do not forget about implementation of the localization and internationalization.
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-The main success criteria is that application is still working as expected and all scenarios work.
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-End to end.
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-After you're done with integration of Sprint core and speed.
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-And we see.
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-Is that clear?
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-In case you have any questions regarding task.
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-Feel free to post your questions below this video and I will be happy to answer.
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-Now I recommend you to put on pause the video and try to implement the task by yourself.
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-Feel free to use examples from the previous lessons and remember in this task you don't leave any signals.
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-What we do them in previous lessons.
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-So the information and the knowledge you gained from the previous lessons should be enough in order
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-to complete this task.
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-Once you try to implement the solution, then proceed with this video because right now I'm going to
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-share with you my solution and give my comments as we go over it.
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-By the way, here you can find the reference to the repository with the solution and reference to the
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-commit.
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-It contains the difference.
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-Probably it would be interesting for you to go over the changes only and understand what has been changed
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-in competition within it.
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-Commit.
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-Let me now start sharing the source code and walk you through my solution.
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-So the first thing that I did, I adjusted for maximum file to include required dependencies.
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-We have maximal files on different levels because we have multi module project on the global level.
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-I added spring core spring beans and spring context dependencies in the form XML of persistence module.
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-I substituted Jakarta persistence API with Java x Persistence API because as you remember, in order
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-to use spring, we need to use Java API instead of Jakarta.
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-Please don't forget to update hibernate core version as well.
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-Again, you need to use compatible version with Xerox API.
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-The latest Hibernate core versions.
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-It is compatible with Java API is 5.6. 14 final.
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-Also, I added Hibernate validator dependency and inside the web module I added sprint and C dependency.
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-Also, I removed Jakarta API dependency and added Java servlet dependency stat.
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-I remove the Jakarta annotation API and edit Java annotation API instead and also I edit Java, GCP
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-API and Java servlet.
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-JSP dependencies.
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-Let's start now from the core module.
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-I open facades package.
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-I put service annotation above the each implementation of required facade.
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-Remember, you have to put annotation above the complete plus, but not above the interface because
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-spring needs some classes that will allow it to create object.
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-If you remember I implemented singleton component here.
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-And now we don't need it because we are going to have spring container who will manage lifecycle of
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-our builds.
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-That's why we can do small refactor here and remove all the code as it was responsible for single component
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-implementation.
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-When you will check the difference.
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-Indeed.
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-You will find that I removed static field private constructor and static method here that instantiate
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-an instance of this type.
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-Also I added out-of-order annotation in order to inject the beans into the properties in this class.
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-Since I am going to use spring, I don't use manually to instantiate objects, I need just to configure
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-the dependencies and let spring to manage all the required injections.
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-I did the similar refactoring in all other facade classes implementations.
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-Let's move on.
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-The same thing I did was the default mail sender.
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-I marked it with service annotation.
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-The next package in our list here is services annotation.
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-We need to do the similar exercise more classes with service annotation and configure dependency injection
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-where this will be needed.
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-Basically, those are all adjustments that we need to do in the core module.
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-Let's proceed with the persistence module in the persistence module.
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-We need to make the similar exercise, but instead of service annotation I'm going to put repository
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-annotation.
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-I will update all the implementations that I started with the GP because in scope of this exam we're
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-going to use GP for persistence.
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-Later, a little bit later in all the lessons, we're going to learn to speak data separately and we'll
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-update this too.
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-Also, we had my SQL JDBC implementations of our interfaces.
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-I decided to delete them in order to not keep the code that we don't use anymore.
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-The next released web DX tool package lets mark with the service annotations converters because we are
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-going to use them in our facades on the business level as you will go over these.
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-Pay attention to the dependency injection.
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-In some classes you need to configure dependency injection.
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-I did this with the help of auto annotation.
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-Actually the fuel you can keep without changes because they will be used for GP only.
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-And objects will be created using the object relational database mapping.
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-So I skip this.
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-The same story is with the entities classes here.
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-I removed package validation because we are going to implement validation with the hibernate data.
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-Now, in the previous solution we configure it validation for default user only a little bit later during
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-the solution review.
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-We are going to take a look at how I configured validation here.
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-I removed the beauteous glass because we don't use it anymore.
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-Also, I removed the BCP connection pool class because of the same reason.
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-Make sure that code is not used anymore before deleting it.
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-Just perform some search and investigation whether this class is used somewhere in the project.
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-In Eclipse, you can use search tools by pressing control and edge button simultaneously.
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-So after making sure that class is not used anywhere, you can delete it.
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-That's it was a persistence model and that's the important thing.
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-Considering Springworks with Java API and doesn't work with Jakarta API, we need to adjust input statements
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-across all different modules.
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-You can use eclipse search by pressing console and key simultaneously.
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-After that, try to search source java files for input space.
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-Jakarta point You can replace all things involved.
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-Just click replace here.
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-New window will pop up and you would need to specify with what you would like to substitute.
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-Adjust everything from Jakarta import to Java import.
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-I already did that.
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-That's why I can search for input box point in order to show the navigation is eclipse.
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-Basically, here you need to specify old value and here to specify the new value and click replace button.
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-That's it.
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-After changing the inputs, you're going to have compilation errors in all GP dot classes because we
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-used try with the resource block for entity manager factory and entity manager, which is okay for Jakarta
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-API but which is not okay for Java Persistence API because back then all the possible interface hasn't
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-been implemented yet in entity manager factor and in entity.
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-Managing these minor API differences is that we should be aware of and be ready to fix when it will
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-be necessary.
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-Like for example, in such case I open GP category.
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-I didn't so much changes here.
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-Basically I just substituted trial resources block with try final block.
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-Yes, it is a little bit more lines of code, but it is what it is.
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-Still, we achieve the same result.
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-And I close entity manager, factory and entity manager is a final block.
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-After factoring all these, you should get rid of the compilation errors and you can proceed.
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-And now the things that we shouldn't forget to update is persistence XML configuration in the persistence
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-module.
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-Just to remind you that we don't use Jakarta with spring.
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-That's why we need to adjust this file to and configure it with Java API.
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-I did this by substituting Jakarta word with Java here and that's it.
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-Also taking into account we changed the version of the hybrid core.
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-We also need to change the dialect, otherwise we are going to get different strange errors.
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-And one more important things that I did here.
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-Also, it is related with the version we used.
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-The reason error in case index will be created on the fields that are longer than 1000 bytes.
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-This error tells us that there is no sense to create index on such long fields because you wouldn't
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-be able to benefit from that.
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-You might be wondering and where we created indices.
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-Let me open the user data across.
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-In this class you can find that we use unique constraints on the email and on the partner code fields.
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-Let's specify length field for these columns in order to avoid error with very long indices.
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-I believe that's it with regards to the persistence module.
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-Now it is time to look at the Web model.
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-Let's look through the whole controllers category server that can be renamed to the category controller.
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-Product facade should be injected with the help of dependency injection tools of spring.
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-Also, lets add controller annotation and remove web servlet annotation and add request mapping or get
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-mapping annotation for the master.
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-If you follow my course, then you already know the difference between these two jobs.
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-We'll keep the same euro as it was before, but instead of keeping it with the web server, annotation
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-will pass it to the request modeling annotation or get mapping annotation or post mapping quotation
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-depending on each case.
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-Also, since this is not a server anymore, we can remove extends http server red and leave it like
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-this.
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-Let's make the similar changes in all servers.
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-196
-00:17:14,000 --> 00:17:20,000
-When I worked on this I recommended to not refactor the whole scenes at once.
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-197
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-Just try to channel your service into the controllers and apply so can see configuration.
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-198
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-The rest of the code you will refactor after that.
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-199
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-Because the most challenging would be to build and run your application.
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-Once you will be sure that your application is built.
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-201
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-You can continue with massive refactoring to use all the features of Sprint.
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-202
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-And we see we'll get this soon.
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-Right now I just want to click through each server and show you that in each server.
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-I did the following things changed the class name to highlight the controller status, removed extents,
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-http server removed web server annotation, added request mapping annotation configured dependency injection
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-where it was needed.
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-The next thing in our list here are web filters.
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-You don't have to do a lot of things because spring be has special support for scanning classes annotated
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-with web filter annotations.
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-The only things that we have to change is that in previous solution we extended our classes from the
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-HTP filter from the Jakarta API.
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-But since we don't use Jakarta API anymore, we need to implement filter interface here.
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-Filter interface makes us to implement init and destroy methods.
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-You shouldn't be bothered about this too much.
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-We don't have any business necessity to implement them.
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-Just leave them as this take into account that we don't have servants anymore.
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-Let's change mappings of management filter from server names to the URL mappings.
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-Previously in the template solution we specified here server names to trigger filter only for those
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-servers.
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-But now we changed this attribute to specify resource mapping of zero related controllers.
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-This is purchase and fulfillment controller.
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-Okay.
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-223
-00:19:35,000 --> 00:19:36,000
-We're good with filters.
-
-224
-00:19:36,000 --> 00:19:37,000
-Let's move on.
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-225
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-We had that package before, but I investigated it and realized that we don't use code from there anymore.
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-That's why I removed it.
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-By the way.
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-Make a note about this, too.
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-Always challenge yourself whether some code is still used.
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-Now we have relatively not huge, but also not small application here.
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-231
-00:20:03,000 --> 00:20:08,000
-And you can see that it can happen that we forget to remove some code.
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-That's why always ask yourself what zip code is still in use now.
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-And in case it is not used, remove it.
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-234
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-But be 1,000% sure that it is not used.
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-235
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-The next package here is utils.
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-In utils we have just one class and this is encryption service that we use in different scenarios,
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-like for example, user registration and logging.
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-238
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-I market with the service annotation and I already configure dependency injection in all places where
-
-239
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-it is used.
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-240
-00:20:49,000 --> 00:20:57,000
-Now let's configure that and we see configuration and web application in action.
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-241
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-If you followed the course attentively, you can just copy and paste configurations that we created
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-242
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-together with you during our lessons.
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-243
-00:21:07,000 --> 00:21:10,000
-Here is my main web app initialization.
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-00:21:10,000 --> 00:21:19,000
-We already reviewed each line of code from this class when we created it the first time I configure
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-245
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-my dispatcher servlet here.
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-246
-00:21:21,000 --> 00:21:27,000
-And here is web config that implements web MVC configure.
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-247
-00:21:27,000 --> 00:21:34,000
-We reviewed a lot of lines of code from this file, and during this video I will highlight the scenes
-
-248
-00:21:34,000 --> 00:21:36,000
-that I added here.
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-249
-00:21:36,000 --> 00:21:43,000
-I want to highlight the configuration of resource handlers because in the web project we already had
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-250
-00:21:43,000 --> 00:21:48,000
-some web resources and we will not move them to different folders.
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-251
-00:21:48,000 --> 00:21:55,000
-We just need to tell Sprint and we see how to map resources properly inside our application.
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-252
-00:21:55,000 --> 00:22:00,000
-Taking into account I implements web and DC configure.
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-253
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-I just need to override add resource and this massive it takes resource handler registry.
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-254
-00:22:08,000 --> 00:22:16,000
-I post strings to which requests from our view layers are sent in to add the resource handler message
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-255
-00:22:16,000 --> 00:22:19,000
-and in the add resource locations.
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-256
-00:22:19,000 --> 00:22:25,000
-I added the name of the folder house called in my web resources.
-
-257
-00:22:26,000 --> 00:22:27,000
-Is that clear?
-
-258
-00:22:28,000 --> 00:22:32,000
-So these are just few lines of code, but important ones.
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-259
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-Congratulations.
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-260
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-We have done a lot of refactoring since.
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-261
-00:22:36,000 --> 00:22:41,000
-Already we try to make similar updates and updates involved.
-
-262
-00:22:41,000 --> 00:22:47,000
-Now let's get deeper into the details and review specific parts of the implementation.
-
-263
-00:22:48,000 --> 00:22:55,000
-Let's learn how we can approach the question of localization and internationalization in Sprint.
-
-264
-00:22:55,000 --> 00:23:03,000
-And we see because if you already know this in template application, based on the seven we used resource
-
-265
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-bundles, we add separate services which is local and we have special tags on the GCP page to print
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-266
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-localized message.
-
-267
-00:23:14,000 --> 00:23:18,000
-How we can address the same challenge is a sprint and we see.
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-268
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-First of all, I removed change because we don't need it anymore.
-
-269
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-The next thing that I did, I declared few beans.
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-270
-00:23:30,000 --> 00:23:30,000
-Here.
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-271
-00:23:30,000 --> 00:23:31,000
-Let me show you.
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-272
-00:23:32,000 --> 00:23:35,000
-I open close this code web config.
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-273
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-I declare bean of message source.
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-274
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-I create object of reward resource bundle.
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-275
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-Message source.
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-276
-00:23:44,000 --> 00:23:53,000
-This implementation will update resource messages in case it will be updated without reloading the server.
-
-277
-00:23:53,000 --> 00:24:00,000
-If you would start explore the Iraq of message source interface, you're going to see that there are
-
-278
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-huge variety of OSR interfaces and classes.
-
-279
-00:24:05,000 --> 00:24:10,000
-Feel free to explore this Iraq deeper by reading the official documentation.
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-280
-00:24:11,000 --> 00:24:16,000
-In case I would tell the hosting documentation, we wouldn't have enough time.
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-281
-00:24:17,000 --> 00:24:20,000
-Of the creation of the object of message source.
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-282
-00:24:20,000 --> 00:24:22,000
-We configure base name.
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-283
-00:24:23,000 --> 00:24:27,000
-If you remember since about localization and internationalization.
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-284
-00:24:28,000 --> 00:24:35,000
-The base name is the basis name of our source bundles without language and country code.
-
-285
-00:24:35,000 --> 00:24:42,000
-In our particular case, the base name is Online Shop Resource Bundle.
-
-286
-00:24:43,000 --> 00:24:50,000
-I can add plus more brackets here in order to tell spring that my resource bundles are located in the
-
-287
-00:24:50,000 --> 00:24:52,000
-class pass of the project.
-
-288
-00:24:52,000 --> 00:24:59,000
-I also set default encoding to UTF eight in order to support most of the Unicode characters.
-
-289
-00:25:00,000 --> 00:25:03,000
-Additionally, we need to declare a local resolver.
-
-290
-00:25:03,000 --> 00:25:08,000
-Being set helps to identify which locale is being used.
-
-291
-00:25:09,000 --> 00:25:13,000
-There are such popular concrete implementations of local resolver.
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-292
-00:25:14,000 --> 00:25:23,000
-Accept how the local resolver uses a primary locale specified in SAP plan which had.
-
-293
-00:25:23,000 --> 00:25:24,000
-Of the HTP request.
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-294
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-Six.
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-295
-00:25:26,000 --> 00:25:34,000
-The local resolver always return a fixed default, local and optionally time zone session.
-
-296
-00:25:34,000 --> 00:25:43,000
-Local resolver uses a local attribute in the user session with a fallback to the specified default locale
-
-297
-00:25:43,000 --> 00:25:44,000
-of the request.
-
-298
-00:25:44,000 --> 00:25:53,000
-Accept how the local local resolver persists a custom, local and or time zone information.
-
-299
-00:25:53,000 --> 00:25:59,000
-As a browser cookie, you're welcome to use any implementations that you wish.
-
-300
-00:26:00,000 --> 00:26:06,000
-I decided to use local resolver and also we need to add interceptor.
-
-301
-00:26:07,000 --> 00:26:15,000
-We need to register a local change interceptor to allow specify the desired local on average request.
-
-302
-00:26:15,000 --> 00:26:23,000
-You can see that I create object of local change interceptor and specify the name of the request parameter
-
-303
-00:26:23,000 --> 00:26:25,000
-that will be used to specify the language.
-
-304
-00:26:26,000 --> 00:26:33,000
-Pay attention that I override the mask that exists to register all possible interceptors.
-
-305
-00:26:33,000 --> 00:26:37,000
-We get interceptor register here as my set argument.
-
-306
-00:26:38,000 --> 00:26:41,000
-I use it to add my interceptor.
-
-307
-00:26:41,000 --> 00:26:42,000
-Okay.
-
-308
-00:26:42,000 --> 00:26:48,000
-Now we're good and required all required builds to support localization.
-
-309
-00:26:49,000 --> 00:26:54,000
-The next thing that we have to do is to make proper changes on the view level.
-
-310
-00:26:54,000 --> 00:27:00,000
-In the project template, we use the localization only in the header element.
-
-311
-00:27:00,000 --> 00:27:07,000
-As example, while I'm totally okay to implement localization and internationalization support across
-
-312
-00:27:07,000 --> 00:27:11,000
-the whole application, this approach would be the same.
-
-313
-00:27:12,000 --> 00:27:15,000
-That's why I would show you only other example.
-
-314
-00:27:16,000 --> 00:27:23,000
-Let me open the header file in the header with language switch that changes language.
-
-315
-00:27:24,000 --> 00:27:29,000
-So the first thing that we need to add here is to add spring tags.
-
-316
-00:27:29,000 --> 00:27:34,000
-You can see here on top tag directive for spring tags.
-
-317
-00:27:35,000 --> 00:27:38,000
-It goes with Spirit and we see library.
-
-318
-00:27:38,000 --> 00:27:41,000
-So if you add a sprinkle, you see in the Maven X.
-
-319
-00:27:42,000 --> 00:27:45,000
-You don't have to add any other dependencies.
-
-320
-00:27:46,000 --> 00:27:53,000
-Now, the only thing that remains to do is to use Sprint message tag and pause the name of the message
-
-321
-00:27:53,000 --> 00:27:55,000
-that we want to use.
-
-322
-00:27:55,000 --> 00:27:57,000
-Everything is super simple.
-
-323
-00:27:57,000 --> 00:28:04,000
-You don't need to be bothered about uploading resource bundles into the file, declaring variables of
-
-324
-00:28:04,000 --> 00:28:05,000
-resource bundles.
-
-325
-00:28:05,000 --> 00:28:08,000
-The rest sprint will handle by itself.
-
-326
-00:28:09,000 --> 00:28:15,000
-And to actually handle change of locale, we need to send a request with the LAN parameter.
-
-327
-00:28:16,000 --> 00:28:24,000
-Do remember we have just configured interceptor, so we have to use the same parameter that we specified
-
-328
-00:28:24,000 --> 00:28:25,000
-in the intercept.
-
-329
-00:28:26,000 --> 00:28:30,000
-Here you can see that the use links with length parameters.
-
-330
-00:28:31,000 --> 00:28:35,000
-Basically when the link is clicked, request is sent.
-
-331
-00:28:35,000 --> 00:28:43,000
-Sprint intercept request verifies the value of request parameter changes local inside the context and
-
-332
-00:28:43,000 --> 00:28:47,000
-reload all the localized resources on the page.
-
-333
-00:28:48,000 --> 00:28:49,000
-Is that clear?
-
-334
-00:28:49,000 --> 00:28:55,000
-If you noticed, we also used resource bundles inside the classes.
-
-335
-00:28:55,000 --> 00:29:03,000
-For example, we use resource bundles in the edit profile controller, checkout controller and in the
-
-336
-00:29:03,000 --> 00:29:08,000
-sign up controller instead of the object of resource bundle.
-
-337
-00:29:08,000 --> 00:29:10,000
-We have message source now.
-
-338
-00:29:11,000 --> 00:29:17,000
-So in these classes you can configure the dependency injection of the message source Bing.
-
-339
-00:29:18,000 --> 00:29:20,000
-It has slightly different API.
-
-340
-00:29:20,000 --> 00:29:24,000
-It doesn't have gets to method like resource bundle type does it?
-
-341
-00:29:24,000 --> 00:29:26,000
-Does get message message.
-
-342
-00:29:27,000 --> 00:29:30,000
-I'm going to use get message method with three arguments.
-
-343
-00:29:31,000 --> 00:29:35,000
-The first parameter is our message code from our source bundle.
-
-344
-00:29:35,000 --> 00:29:37,000
-The key of the message.
-
-345
-00:29:38,000 --> 00:29:44,000
-The second parameter is array of arguments that we will use to inject into the messages.
-
-346
-00:29:44,000 --> 00:29:47,000
-And the third parameter is local.
-
-347
-00:29:47,000 --> 00:29:51,000
-Taking the account Spring changes local.
-
-348
-00:29:51,000 --> 00:29:58,000
-We'll just use massive default from local class because it returns the current local.
-
-349
-00:29:58,000 --> 00:30:05,000
-Is it clear to even in case you have any questions, please do not hesitate to ask questions below the
-
-350
-00:30:05,000 --> 00:30:08,000
-video and I will be happy to answer.
-
-351
-00:30:09,000 --> 00:30:12,000
-The next thing that we have to configure is exception handling.
-
-352
-00:30:13,000 --> 00:30:15,000
-You already saw the lesson about exception handling.
-
-353
-00:30:16,000 --> 00:30:19,000
-That's why there will be nothing new for you.
-
-354
-00:30:20,000 --> 00:30:25,000
-This web config class will declare the handler exception resolver.
-
-355
-00:30:25,000 --> 00:30:33,000
-So this one supposed to handle all exceptions without handlers and forwards in request is an error page.
-
-356
-00:30:33,000 --> 00:30:36,000
-I added this JSP to this.
-
-357
-00:30:36,000 --> 00:30:39,000
-This is from our lesson about exception handling.
-
-358
-00:30:39,000 --> 00:30:40,000
-And this.
-
-359
-00:30:40,000 --> 00:30:40,000
-Can we see.
-
-360
-00:30:41,000 --> 00:30:51,000
-His main position was, I said, strong exception if no ever found property in our dispatch server to
-
-361
-00:30:51,000 --> 00:30:51,000
-true.
-
-362
-00:30:52,000 --> 00:30:57,000
-And also I declare the error controller advisor in the exception package.
-
-363
-00:30:58,000 --> 00:31:03,000
-It handles our not found exceptions and for that request is not found.
-
-364
-00:31:03,000 --> 00:31:04,000
-JSP page.
-
-365
-00:31:05,000 --> 00:31:06,000
-That's it.
-
-366
-00:31:06,000 --> 00:31:14,000
-With regards to exceptions, it is also can be considered as a good thing to refactor exists in masses
-
-367
-00:31:14,000 --> 00:31:21,000
-in controllers that will work with HTTP server request and h to be server response.
-
-368
-00:31:21,000 --> 00:31:22,000
-No doubt.
-
-369
-00:31:23,000 --> 00:31:30,000
-But we end the process of and we see integration in order to take advantage of using it in our code.
-
-370
-00:31:30,000 --> 00:31:38,000
-I'm talking about not extracting request parameters from the server request with a separate method calls
-
-371
-00:31:38,000 --> 00:31:43,000
-not perform mapping between the form and the entity manually.
-
-372
-00:31:43,000 --> 00:31:45,000
-Let's use spring for all these routine.
-
-373
-00:31:47,000 --> 00:31:53,000
-Also, we'll get rid of request forwarding through the dispatcher servlet like we did before.
-
-374
-00:31:53,000 --> 00:31:58,000
-Let's review each controller one by one and make appropriate changes.
-
-375
-00:31:58,000 --> 00:32:01,000
-We start from the category controller.
-
-376
-00:32:02,000 --> 00:32:09,000
-I added a few request parameters here instead of extracting them from the request object, I injected
-
-377
-00:32:09,000 --> 00:32:18,000
-model and I returned street value of the view where for the request to in checkout controller and in
-
-378
-00:32:18,000 --> 00:32:22,000
-some other places pay extra attention is redirect.
-
-379
-00:32:22,000 --> 00:32:30,000
-You know that there can be different reasons for redirecting request instead of the forwarding request
-
-380
-00:32:30,000 --> 00:32:31,000
-ignores the view.
-
-381
-00:32:31,000 --> 00:32:37,000
-In this particular case, according to our business logic, we would like to make redirect after the
-
-382
-00:32:37,000 --> 00:32:42,000
-checkout the different ways about how to make redirects.
-
-383
-00:32:42,000 --> 00:32:49,000
-But in my opinion, the simplest one is to use redirect graphics before the union.
-
-384
-00:32:50,000 --> 00:32:50,000
-That's it.
-
-385
-00:32:51,000 --> 00:32:58,000
-Walks through the controllers attentively and refactor all the masses attentively, just in case.
-
-386
-00:32:58,000 --> 00:33:07,000
-You can always look at my solution, taking into account the changes as similar in all classes, I wouldn't
-
-387
-00:33:07,000 --> 00:33:11,000
-stop on each controller, just try to make changes.
-
-388
-00:33:11,000 --> 00:33:17,000
-By analogy, there is sign up controller that also requires updates.
-
-389
-00:33:17,000 --> 00:33:25,000
-In the related view, I recommend here to implement smooth forms, use model attributes, feature and
-
-390
-00:33:25,000 --> 00:33:27,000
-validation feature.
-
-391
-00:33:27,000 --> 00:33:35,000
-Let me show it to you In the get method, I put the object of the user into the model and therefore
-
-392
-00:33:35,000 --> 00:33:36,000
-to request a view.
-
-393
-00:33:37,000 --> 00:33:38,000
-Let me open now.
-
-394
-00:33:38,000 --> 00:33:40,000
-Sign up JSP page.
-
-395
-00:33:41,000 --> 00:33:42,000
-On top of the page.
-
-396
-00:33:42,000 --> 00:33:46,000
-You can see that I used spring forms directly.
-
-397
-00:33:47,000 --> 00:33:50,000
-It also goes with the Spring MVC library.
-
-398
-00:33:50,000 --> 00:33:56,000
-After that I change each HTML tag form with spring form tag.
-
-399
-00:33:57,000 --> 00:34:00,000
-I add modal attribute to the form.
-
-400
-00:34:00,000 --> 00:34:09,000
-I substitute all HTML input tags with spring form input dates and the specifies the POS attribute instead
-
-401
-00:34:09,000 --> 00:34:12,000
-of the name in order to set the values.
-
-402
-00:34:12,000 --> 00:34:20,000
-It is a model object that tensions and previously with POS repeat passwords as a separate argument.
-
-403
-00:34:20,000 --> 00:34:28,000
-And now, since we have binding all form parameters with the object, we need to add one more field
-
-404
-00:34:28,000 --> 00:34:35,000
-for a password into the default user object and also getters and status free.
-
-405
-00:34:36,000 --> 00:34:37,000
-Okay.
-
-406
-00:34:37,000 --> 00:34:43,000
-After submitting this form, we can extract the user object in the sign up controller with the model
-
-407
-00:34:43,000 --> 00:34:44,000
-attribute annotation.
-
-408
-00:34:45,000 --> 00:34:52,000
-You can see that I also added bind binding result object that goes right after our model for the model
-
-409
-00:34:52,000 --> 00:34:53,000
-validation.
-
-410
-00:34:53,000 --> 00:35:02,000
-I edit valid annotation to validate the model attribute and inside the default user class, I also configured
-
-411
-00:35:02,000 --> 00:35:03,000
-validation rules.
-
-412
-00:35:04,000 --> 00:35:12,000
-I added validation rules for the first name, last name and email and in case binding results have errors,
-
-413
-00:35:12,000 --> 00:35:15,000
-referred user back to the signup page.
-
-414
-00:35:15,000 --> 00:35:19,000
-If no, then we continue our business logic here.
-
-415
-00:35:19,000 --> 00:35:25,000
-And the next thing that we have to do is to verify the proof key with the partner code to implement
-
-416
-00:35:25,000 --> 00:35:27,000
-our referral program.
-
-417
-00:35:28,000 --> 00:35:35,000
-The next thing that we do here is extract the value from the key in case there is any partner code in
-
-418
-00:35:35,000 --> 00:35:35,000
-it.
-
-419
-00:35:36,000 --> 00:35:43,000
-We will speak MVC instead of iterating over all cookies until we find the right one with the name that
-
-420
-00:35:43,000 --> 00:35:43,000
-we need.
-
-421
-00:35:44,000 --> 00:35:50,000
-I just use quick value annotation and pass it in the mass parameters.
-
-422
-00:35:50,000 --> 00:35:54,000
-I specify the name of the cookie and the default value.
-
-423
-00:35:55,000 --> 00:35:58,000
-Pay attention in case there will not be a cookie.
-
-424
-00:35:59,000 --> 00:36:01,000
-Then spring will throw an exception.
-
-425
-00:36:02,000 --> 00:36:10,000
-That's why it is important to set default value in order to avoid exception and using this cookie value.
-
-426
-00:36:10,000 --> 00:36:12,000
-I work with it in the code.
-
-427
-00:36:13,000 --> 00:36:19,000
-And the last but not the least thing taking into account we use spring court now.
-
-428
-00:36:19,000 --> 00:36:24,000
-There is no need for us to store configurations in the constants.
-
-429
-00:36:24,000 --> 00:36:31,000
-Let's keep all application related properties outside of our code in the separate properties file.
-
-430
-00:36:31,000 --> 00:36:35,000
-Let me show you how easily we can configure this.
-
-431
-00:36:35,000 --> 00:36:39,000
-I added properties file in my resource folder.
-
-432
-00:36:39,000 --> 00:36:46,000
-Basically, what I did here, I just moved all the properties from the configurations interface to the
-
-433
-00:36:46,000 --> 00:36:48,000
-properties file.
-
-434
-00:36:48,000 --> 00:36:57,000
-The next thing I did, I verified where I have completion error and then I injected the required property
-
-435
-00:36:57,000 --> 00:36:58,000
-values there.
-
-436
-00:36:59,000 --> 00:37:01,000
-Let me show you one example.
-
-437
-00:37:01,000 --> 00:37:04,000
-For example, I open search controller.
-
-438
-00:37:05,000 --> 00:37:12,000
-Previously I used here pagination limit constant value from the configurations interface in order to
-
-439
-00:37:12,000 --> 00:37:17,000
-tell my facade how many records I expect to get on the page.
-
-440
-00:37:17,000 --> 00:37:24,000
-And now, instead of using the constant from the configurations interface, I inject the property from
-
-441
-00:37:24,000 --> 00:37:26,000
-the properties file.
-
-442
-00:37:26,000 --> 00:37:31,000
-I inject it using value annotation and string expression language.
-
-443
-00:37:31,000 --> 00:37:38,000
-But in order to use properties like this from the properties file, you need to register property file
-
-444
-00:37:38,000 --> 00:37:39,000
-in the spring.
-
-445
-00:37:40,000 --> 00:37:43,000
-I open web config class.
-
-446
-00:37:43,000 --> 00:37:46,000
-I use this class as a configuration.
-
-447
-00:37:46,000 --> 00:37:53,000
-And you can see that I added here another annotation that is called Properties source and I post app
-
-448
-00:37:53,000 --> 00:37:55,000
-properties value there.
-
-449
-00:37:56,000 --> 00:37:57,000
-So that's it.
-
-450
-00:37:57,000 --> 00:38:02,000
-Now we can say that we are ready to use properties in our application.
-
-451
-00:38:03,000 --> 00:38:06,000
-Basically that all changes that they did.
-
-452
-00:38:07,000 --> 00:38:10,000
-Compare your solution with my solution.
-
-453
-00:38:10,000 --> 00:38:16,000
-Ask your questions below the video and verify end to end behavior of the application.
-
-454
-00:38:17,000 --> 00:38:23,000
-Remember, you have the reference to all the requirements in order to verify all behavior.
-
-455
-00:38:23,000 --> 00:38:32,000
-And then I'm sure that this exercise helps you a lot in getting practical skills of work with this framework.
-
-456
-00:38:32,000 --> 00:38:35,000
-This task is really comprehensive.
-
-457
-00:38:35,000 --> 00:38:39,000
-Now we integrate the Sprint core and sprint and we see.
-
-458
-00:38:39,000 --> 00:38:41,000
-But we are not done yet.
-
-459
-00:38:41,000 --> 00:38:44,000
-We have a lot of lessons ahead.
-
-460
-00:38:44,000 --> 00:38:45,000
-So stay tuned.
-
-461
-00:38:46,000 --> 00:38:53,000
-We are going to improve this online shop with implementation of other cool features from this framework.
-
-462
-00:38:53,000 --> 00:38:55,000
-Thanks a lot for your attention.
-
-463
-00:38:55,000 --> 00:38:58,000
-Have a great day and see you in the next lesson.
-

83 - ===== EXAM Spring Core & Spring MVC - Online Shop =====/001 Task-description-reference-to-the-solution-and-the-source-code.url

@@ -1,2 +0,0 @@
-[InternetShortcut]
-URL=https://docs.google.com/document/d/1sCd2OpRMFyeTZzkZ_mDPQFvtECu8pLqFm3lPJW9lf_U/edit?usp=sharing

83 - ===== EXAM Spring Core & Spring MVC - Online Shop =====/external-links.txt

@@ -1,3 +0,0 @@
-
-001 Task-description-reference-to-the-solution-and-the-source-code
-https://docs.google.com/document/d/1sCd2OpRMFyeTZzkZ_mDPQFvtECu8pLqFm3lPJW9lf_U/edit?usp=sharing