I'd like to auto-document my spring boot projects.
Basically I'd like to list:
all cronjobs
all databases configured
all implementations of resttemplate
Is there such a tool out there, or do I have to build something like it myself?
Related
I want to implement a central spring boot application that responsible for designing business rules with Drools. Here is an example for integrating spring boot with drools. I need to use a UI designer for generating rules in database(rather than drl file), But I don't know how it's possible. I've searched a lot and seen somethings like drools workbench , KIE server, Guvnor and ..., but I don't know what are they and which one is suitable for me. Is there any resources or good documentation for using drools UI in Spring boot application?
I've needed to implement a rules engine, I've searched and choose between Camunda DMN and Drools. I would like to recommend you to use Camunda DMN. It's much more easier to use for rules than Drools.
Camunda DMN has a Spring Boot - starter too.
Camunda has an App (Camunda Modeler) where you can define rules with a simple to use GUI and then deploy them to your Camunda Server. They will be stored in a database. If you want you can integrate your application with another database, so that you can download rules from your Camunda Server and then store them in your Application Database.
A very good and simple example of using Camunda DMN with Spring Boot:
spring-boot-camunda-dmn-example
So looks a simple DMN-rule. It will be stored in XML-Format and you can store it as a String in your Database.
I've been learning spring boot for a while and as per my understanding, we use spring boot only to create the project along with dependencies and embedded servers. It doesn't have much of a role while working on the project or after the project is created.
I mean, if i were to work on an enterprise application for a company, chances are that, there is already a project created using springboot and I don't have to really use spring boot anywhere while working on that project.
Is my understanding correct?
I've tired googling, but did not find a clear answer.
No. You may still need to use the following spring-boot features after creating a project :
Externalise the application properties
Test the application using testing utilities and annotations provided by spring-boot
Use its auto-configuration feature to quickly configure if you need to enhance your application with other library/framework afterwards.
Use its developer tool to make you have a better Dev experience (e.g automatic restart the app when code changes , hot-reload static content etc.)
Use Actuator to monitor your application health and gather metrics.
I mean, if i were to work on an enterprise application for a company, chances are that, there is already a project created using springboot and I don't have to really use spring boot anywhere while working on that project.
I think you can say pretty much the same about any framework out there. I can't agree with this statement in general.
Every framework (including spring boot) provides a set of features that you may opt to use or not to use in your project.
So yes, for each existing microservice you'll have a #SpringBootApplication class.
Also probably set of configurations / practices how to work with configurations.
You'll already have also spring beans on existing project.
However software constantly evolves (otherwise it doesn't make sense to hire programmers, you know).
So when you (as a new employee) need to create a new micro service then, congratulations, you're using Spring boot features.
Other day-to-day tasks include (just a couple of example out of the head):
Create Integration Tests (#SpringBootTest)
Define new configuration Properties
Use Actuator
Use Metrics + define new metrics
Reconfigure Logging
Writing Liquidbase/Flyway migrations
Integrate new set of beans (Configurations)
Use Autoconfigurations
and so on and so forth.
If you want to really understand what you're doing while implementing these tasks you should know how do relevant features provided by spring boot work.
I have a set of projects in Spring framework and I have to Find the ones which can be converted to Spring boot.
Is there anything that is related to Spring framework and cannot be converted to spring boot ? In my research, I Could not Find something like that.
But does anyone know something, like a dependency, which would force the project to stay in Spring framework ?
Spring Boot uses the Spring Framework as a foundation and improvises on it. It simplifies Spring dependencies and runs applications straight from a command line. Spring Boot provides several features to help manage enterprise applications easily. Spring Boot is not a replacement for the Spring, but it’s a tool for working faster and easier on Spring applications. It simplifies much of the architecture by adding a layer that helps automate configuration and deployment while making it easier to add new features.
Most of the changes for migrating Spring Framework application to Spring Boot are related to configurations.This migration will have minimal impact on the application code or other custom components.Spring Boot brings a number of advantages to the development.
It simplifies Spring dependencies by taking the opinionated view.
Spring Boot provides a preconfigured set of technologies/framework to reduces error-prone configuration so we as a developer focused on building our business logic and not thinking of project setup.
You really don’t need those big XML configurations for your project.
Embed Tomcat, Jetty or Undertow directly.
Provide opinionated Maven POM to simplify your configurations.
Application metrics and health check using actuator module.
Externalization of the configuration files.
Good to refer this for migrating from Spring to Spring Boot application: https://www.javadevjournal.com/spring-boot/migrating-from-spring-to-spring-boot/
One of the Spring framework advantage is dependency injection. Many had used SpringBoot for providing REST Web Services.
Read up and notice there are Scheduler and CommandLineRunner for SpringBoot, could we using SpringBoot for backend type of application to replace the usual standalone java program while making use of SpringBoot advantage (Dependency Injection)
- Cron Job (Execute and stop running)
- Long Running Process
One of the main thing I am looking into is to use annotation such as Spring Configuration, Spring Data JPA and other technology in backend application.
Of course!
I used spring boot to back CLI projects, DB access projects and more.
Spring boot is very modular. It works by providing auto-configuration based on your maven/gradle imports. If you don't import starter-web/starter-jersey or any other starter that is for the web/rest api, the auto-configuration for this resources won't be triggered and you can basically enjoy all the power of spring boot to support your needs
Definitely,
Spring boot is not a separate framework.It reduces the configuration difficulties when you using spring framework. Spring boot provides a Rapid Application Development using without complex configuration including your dispatcher servlet, XML file for database connectivity and configuration files. You can use spring boot for back-end development. Simply says you can do everything what you does in spring MVC without any complex configuration. If you are using spring boot , You can configure your database details in application.properties file. I am adding one of two links for proper reading,
https://projects.spring.io/spring-boot/ ,
https://dzone.com/articles/why-springboot
I would like to evolve my Spring application with a better architecture. The technologies I'm using are : spring portfolio ( spring mvc, spring test, spring Web, spring core, spring rest...)
Today I'm using packaging to structure the different layers of my application: models, services, api and of course web where I have my controllers.
I would like to know how can I use the power of spring boot to make a multi module maven architecture with an xml spring configuration for a Web application. I read that spring boot have an embedded tomcat and since I'm using eclipse with a separate tomcat server I would like to deploy my application on it and I think that this can create a problem.
I already found some links on github with this type of projects most of them are not elaboring an architecture of a Web application and use a class for spring configuration with the embedded tomcat that spring boot offers.
Thank you
Ps: sorry for my bad English
What you mean by multi module. If you want to build your jar for multiple environment you can use maven profile for it. Spring boot is nothing but a spring project which ease the configurations for you.
Regarding deployment to your own server, you have to convert the jar to war. Read "What about the Java EE Application Server" section of below link.
https://spring.io/blog/2014/03/07/deploying-spring-boot-applications