I have a Spring Boot project. I created the following two configurations:
Spring Boot Configuration
JAR Application Configuration
Can someone tell me what is the difference? They both run as expected.
Thank you.
Running via Spring Boot configuration will allow hot swapping of the changes during debugging which is very useful during development as you don't have to rebuild all the files and package the jar on every change.
Jar Application is handy when you want to verify that your production jar works as expected.
Related
I have created a Spring Boot Microservice using IntelliJ-Idea and Gradle as the build engine. I have made no changes to the initial Spring Boot configuration. I also have made no modifications to the build.gradle file provided. I built the application using starter.spring.io through IntelliJ-Idea and have the following dependencies:
compile('org.springframework.boot:spring-boot-starter-data-jpa')
compile('org.springframework.boot:spring-boot-devtools')
compile('org.springframework.boot:spring-boot-starter-web')
runtime('org.postgresql:postgresql')
testCompile('org.springframework.boot:spring-boot-starter-test')
The application currently contains 12 classes and 2 interfaces and is a Web Service provider. It runs fine on my system but when I build with Gradle, the Manifest.MF contains no Main-Class entry.
I created a very simple Hello World app and tried several combinations of IDE’s and build tools(Gradle and Maven)
and got the following results:
Interestingly, I was able to produce executable jars in Eclipse which has a separate Runnable JAR Export process.
I'm fairly new to IntelliJ and Gradle. Has anyone see this behavior before? Any ideas what I might be doing wrong in IntelliJ? I have my Hello World project zipped up if anyone needs it.
I took the advise of M. Denium and I did the Gradle build from the Command Line. The jars created were formatted correctly to be executable. Everything worked like a charm. In fact the Main-Class is a Spring Boot class called org.springframework.boot.loader.JarLauncher and the main class for my app was in a property called Start-Class. The IDE totally misses this.
Looks like you will need to include spring boot plugin for gradle - org.springframework.boot:spring-boot-gradle-plugin
More details in the gradle section of the getting started guide
I' starting to use ServiceMix and Camel and I've run through many examples.
It seems that the examples that are OSGi can be deployed in ServiceMix via hot deploy or via console, but I don't know how to deploy a project that is not an OSGI. Can it be done?
For example, I'm looking at the example project from Camel 2.10.0 called camel-example-cxf-proxy. I did some alterations and now I wanted to load it in ServiceMix. If I copy/paste to the deploy directory it is loaded but when I try to run it via osgi:start id it fails.
However if I run it from the IDE as a standalone it runs just fine and I can send and receive requests via SoapUI.
When I'm done with the examples I'll want to create my own project in eclipse and do tests in the IDE and in ServiceMix. I don't really understand the advantage of OSGi yet. SO I'm not too compelled to use OSGi for my project.
My main question is: Can I deploy a non-OSGi non-JBI compliant project in servicemix? Something like the camel-example-cxf-proxy. If yes, how can I do it? If no, how can I OSGi-fy the camel-example-cxf-proxy?
Thank you :)
Apache ServiceMix which uses Apache Karaf as its kernel, support pluggable deployment units. Though OSGi is the main unit.
You can deploy JBI artifacts (eg JBI was used as deployment units for Apache ServiceMix 3.x). So we offer that as a migration path to run JBI in SMX 4.x.
A plain WAR file can be deployed as well. You can for example just drop a .war file in the deploy directory. If you deploy from the shell, you need to prefix the deployer with war so it knows to use the war deployer.
There is some documentation about the various pluggable deployers here
http://fusesource.com/docs/esbent/7.0/esb_deploy_osgi/UrlHandlers.html
For example to install an Apache Wicket WAR example using Maven you can do from the shell:
osgi:install war:mvn:org.apache.wicket/wicket-examples/1.4.7/war?Web-ContextPath=wicket
The Apache documentation about deployer is mainly documented at Apache Karaf
http://karaf.apache.org/manual/2.2.9/users-guide/deployer.html
Now to deploy OSGi applications can be a bit of pain to assemble. And that is why FuseSource created FAB to make it much easier. I blogged about this a bit, which references to videos and more material: http://www.davsclaus.com/2012/08/osgi-deployment-made-easy-with-fab.html
With FAB you can just deploy regular Maven projects out of the box without any OSGi pain.
If your project is a maven project, you can try :
mvn install
Then start your servicemix, and in servicemix command line :
install mvn:groupId/artifactId/version
This will prompt a bundle ID. Then, juste start the bundle :
start <bundle_id>
You can check the state of your bundle with command "list"
The project has to be a bundle to be installed in servicemix / karaf. So the steps to make a camel project work in OSGi are the following.
Use the maven bundle plugin in the pom and configure it to import / export the necessary packages if necessary.
Make sure your camel context is defined in a way that OSGi can start. This is either in the activator of the bundle or in a spring config in the right location or with a blueprint config in the right location.
See two of my karaf tutorials for the details:
CXF: http://www.liquid-reality.de/x/EoBk
Camel: http://www.liquid-reality.de/x/G4Bk
I am working with a buildr project using IntelliJ IDEA and I want to get JRebel working. This is a Spring MVC project.
I have my rebel.xml configured and I created an ant script to re-package the application:
buildr package test=no
JRebel says it redeployed, but Spring seems to not be running after the redeploy.
The best you could do is to enable JRebel logging by adding -Drebel.log=true to JVM arguments and send the log file to support.
Do you see any messages in console that JRebel is actually started and is monitoring the directories? Maybe the license is missing?
The spring source code examples use maven tomcat plugin and i am able to run these projects using the command mvn tomcat:run but what i dont see the application is not deployed in local tomcat server("C:\apache tomcat\webapps\")..
And how it is different from cargo plugin? (In this case when i ran the command mvn cargo:redeploy, i see the application deployed in the location "C:\apache tomcat\webapps\")
If i add cargo plugin to the POM of spring examples (like mvn-showcase,petclinic)..will it screw up the things?
The spring source code examples use maven tomcat plugin and i am able to run these projects using the command mvn tomcat:run but what i dont see the application is not deployed in local tomcat server("C:\apache tomcat\webapps\")
The command tomcat:run starts an embedded Tomcat, it doesn't deploy an application to your local Tomcat (why does it matter anyway?).
And how it is different from cargo plugin?
Cargo is a container agnostic tool so you could configure it to use a remote container, a locally installed container, an embedded container (as long as implementations are provided for a given container) and still use an unified API (or set of commands).
In this case when I ran the command mvn cargo:redeploy, I see the application deployed in the location "C:\apache tomcat\webapps\"
Cargo doesn't support running Tomcat+6.x in embedded mode. So you are very likely using it with a locally installed container and your app gets physically deployed on it.
If i add cargo plugin to the POM of spring examples (like mvn-showcase,petclinic)..will it screw up the things?
It won't screw up anything, why would it.
You can use tomcat maven plugin and deploy it to external tomcat server.
see this link for all the available goals. tomcat-run will start a embedded server but tomcat:deploy works for external tomcat.
How to configure eclipse to hot deploy to jboss server side code? And how to configure google eclipse plugin to use development mode with jboss and the hot deployed code? What projects should I create?
Could someone give me step by step configuration how to do it.
I just want to use ejb/jpa/jms(optional) on the server side with hot deployment and at the same time to use ejbs in the gwt rpc implementations(or gwt-dispatch lib) with development mode. And at the end, i also want to build every thing with maven for production. Is this possible?
The three
gwt development mode
jboss hot deployment
mvn build and dependencies management
separately work, but combined how?
Everything I tried was unsuccessful.