Bootstraping Spring Boot Project

Spring Boot: Build Your Website Real Quick Spring MVC + Restful Web Service
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Transcript

Hey there, welcome back friends. Till now we have checked like couple of things related to a Spring Boot project, how to start a Spring Boot project, how to create a web application using Spring Boot, how to create a RESTful API using a Spring Boot project and things like that, which is a cool stuff nice. But there are a couple of more things, which we will discuss today before actually building a micro service. Now building a micro service seems to be a simple task, but there are like few things which we must remember and which we must follow when we create a good application. So we will build a good working nice micro service in our forthcoming videos. But first of all, let us try to understand the background of a Spring Boot application.

Now let me show you the permanent XML file real quick from this project and in here if we check it there are like multiple dependencies, which are already added and these dependencies are added when we were adding a spring starter project now, which is cool, but in here there are like two trees first tree as this parent and second one as dependency and we will discuss about these two trees. Now, in here if we check when it comes to our dot spring framework dot boot in here in the artifact ID there is no version provided likewise when it comes to the starter Tomcat, again there is no version provided. Now, how come a Spring Boot application will know that which exact version of a jars it needs to use right, here comes the parent project into picture. So whenever we are making use of a parent project parent project will specify the exact version The charts which needs to be used in our what we say Maven project.

So, if I show you here are the jar which are like imported in our project and if I show you a couple of things like web MVC jar, the current version is 5.0 point nine and if I convert the version from 2.0 point five to for example 1.0 point zero then what happens is the jar version will be changed that too drastically. So current version is 5.0 point nine, but if I try to update this Maven project, the job version will be updated. Let me show you. Alright, so in here, if I show you it is building the workspace, it will take a couple of seconds. Here we go. So the version of the chars has been downgraded from five point somewhere.

Version two four point some version. So, this is the impact of the parent project, right. So, this is cool enough this is a nice that how the parent project is specify the version of the chars used in the Maven project. Let me undo the changes and save the changes again the Java versions will be reverted back to version 5.0 point nine This is good stuff all right, this is cool. Now friends when it comes to like building a project there are like multiple ways which we have seen already like adding a Maven project First of all, and then adding the dependency inside the pom dot XML. Now this way of adding a Maven project and then executing the Maven project is something which we have already seen.

The next way. We have seen as making use of this option is spring starter project which is available in our spring tool suit again Using this particular way, what happens is we download a zip file from this particular URL. Now, what exactly is this URL? And what do we mean by this service you are editing. Let me copy this URL. And let me open this URL on the web browser.

Typical. Now this isn't nothing but a URL for a yet another project of a spring by the name of a spring initializer. Now, this helps us to initialize a Spring Boot project. Now in here, there are a couple of options. We can like generate a Gradle or Maven project, using couple of languages like kotlin, groovy and Java. And we can also choose the version of Spring Boot which we can bootstrap which we can initialize, then we can also provide group ID artifact and things like that.

There is a yet another view If we switch to full view there are like couple of more things which we can do like adding support of other dependencies and things like that. So this is good enough and if we click on this generate project what happens in the background is a file will get downloaded and this is nothing but a Maven file with the default configuration in the pom dot XML file already. Now, here is the thing. If we would like to initialize the project, the only thing which we need to do is importing this particular file into our Eclipse and we are good to go. Now when we select this option of spring starter project in the background, in fact, the same step takes place. In here we can like add in the required stuff.

We can give a name and things like that. For example in here, we can give the name as building project taken note in here, we can like select couple of options. If I click on Next what happens is, it asks us for the dependency. This is similar to asking the dependency on our website. So it is again asking the dependency what we need, similar to this particular web interface. And once we select the dependency and select the version of Spring Boot and click on next in the background, what happens is, again, we are downloading a zip file, here is the zip file, right.

And this zip file would be imported into our workspace. Let me click on Finish. So in the background, the zip file would be downloaded. And indeed, we have added a project into our workspace. So this is how we can build a Spring Boot application using different ways. Moreover, for example, if we wish to download a project in here, we have already Downloaded these project and then importing the project into workspace again that is very simple, we can click on that we say File Import.

Now, in this window we have like multiple options one of the option as general and select this option of project from a folder or archive select this option click on next and click on this archive button. Select the archive file which you have downloaded from the website start.spring.io and in here we will get couple of options and the second option is for Maven right so we will select this Maven option where we will be adding this demo project and we will click on Finish. Alright, so in here we can easily see that we were successful in adding this particular project into our spring tool suit. So this is amazing how easily we are able to add in these projects now I will definitely do lead this project. We don't need that. Alright, so that's it for today.

I hope you guys enjoyed this video. Thanks for watching. Have a nice day and take care

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