In eclipse oxygen my Spring Boot app restarts automatically as soon as I change any Java file. In IntelliJ I did not find a function like this. Can I achieve the same in IntelliJ too? I often read about HotSwap but I cannot get it work with Spring Boot. I also read about spring devtools. But do I really need this if I just want to reload my classes after changes?
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Since the migration to Spring Boot 3 my application doesn't hold at breakpoints any more, when I run the Maven Spring Boot goal mvn spring-boot:run.
This is because Spring forks the thread or the process and the debugger is not attached to this.
In former Spring-Boot versions you could disable forking by passing -Dspring-boot.run.fork=false (see How to debug spring-boot application with IntelliJ IDEA community Edition?).
Unfortunatly this option was removed as you can read in the Spring Boot 3.0 Migration Guide:
The fork attribute of spring-boot:run and spring-boot:start that was deprecated in Spring Boot 2.7 has been removed.
Is there any possibility to make breakpoints work again?
Ideas so far
Of course IntelliJ Ultimate has better Spring Boot integration. I'm trying to make it work with the Community Edition.
I also tried not to run the Maven goal but to make an Application run configuration. This failed so far, because of java.lang.ClassNotFoundException, it doesn't find the Main class. Not sure if I should investigate that option further.
Last idea was to start the Maven goal with debug options such that an external debugger can attach. That didn't work either and even if it would, I could only attach the debuger after startup with would make debugging the creation of spring context impossible.
I am in the middle of setting up a Spring Boot application in IntelliJ idea. I was reading about IntelliJ's Spring Boot support and I'm supposed to be able to see a green run icon in the gutter of my #RestController next to my #RequestMapping. The application is working fine and I can even see the mapping in the Run tab under Mappings. I was wondering what I'm missing?
I've created a project using Spring Initializr to show the problem. The issue is reproducible in the DemoController and the project is available on Github
It doesn't work because of the known IntelliJ IDEA bug specific to Spring Boot 2.2.x versions.
By running the app in debugging mode (spring-boot:run) with IntelliJ Idea CE, no breakpoints work at all when using Spring Boot 2.2. Instead, when rolling back to Spring Boot 2.1.1, everything works fine. What am I doing wrong? Is there an option/flag to add for 2.2 to make the debugger work?
I would recommend running the app directly from the IDE rather than using mvn spring-boot:run. Doing so will give you the best experience in the IDE.
The release notes indicate that the Spring Boot Maven Plugin now forks the process by default which is the reason why you can't debug the application as you used to with 2.1. If you really have to run the app using the maven plugin, you can disable forking the process (e.g. using -Dspring-boot.run.fork=false)
Edit Configuration -> Application -> in Main Class: select your Main class (the one that contain your main method(public static void main) ) and run
I have a spring-boot application in which I loaded all the necessary (or so I believe) dependencies to run without using spring-boot initializer or the spring-boot gradle plug-in. These tools are not available for me at my work. I can run the application through intellij without issues, but when attempting to run a fat jar, I am met with
No auto configuration classes found in META-INF/spring.factories.
Now the spring.factory files ARE located inside the fat jar (there are multiples of them) and they are inside the meta-inf directory.
Spring boot has so much automated functionality, I am not sure where to begin. There are a lot of similar posts and everyone just tells people to use the spring-boot gradle plugin bootJar task but as I said these are not available to me. I need to get it running without those tools,
if anyone has insight into what the issue may be or how to resolve it, any help is appreciated. I will try to add more details later.
I am using spring-boot v. 2.1.1 and spring 5.1.4
I have previous experience in Spring MVC but I am new to Spring Boot.
I am Using IntelliJ for the first time.
What I noticed is that when you create a Spring boot project with security dependencies added during the time of creation, Then the IDE creates the project already configured With Basic Authentication whereas if I add dependencies to pom.xml after creation, then the application won't get configured with basic authentication automatically.
Can anyone explain this behavior of IntelliJ and can anyone help me with steps for configuring the pre-created project with Basic Authentication?
IntelliJ is using
https://start.spring.io/
to initialise your project. After the project is initialised, the IDE doesn't modify your code in any way. That is the normal behaviour and it is not Spring Boot related.
NOTE: The dependency that you add in your pom.xml is just pulling down that dependency, but if you need to use it you do the code yourself. (More information about Maven: https://en.wikipedia.org/wiki/Apache_Maven)