Running tomcat by adding external server vs inbuilt maven - eclipse

I want to know the difference in running an application in eclipse by both ways below:
1)Run the application as maven build with 'tomcat' dependency in the pom.xml
2)download tomcat from apache site and add the server, run the tomcat and then run the application as server.
Lets say, my project name is 'messenger'. When I did using first step, i can access with below link"
http://localhost:8080/
but when i did as second step, i can access using below link:
http://localhost:8080/messenger/
can someone, please explain why the difference? arent both the same?

Related

How to launch a Spring webapp from within Eclipse

I've got a poor beginner question about Spring/Eclipse usage.
I'm working on tutorials to learn Spring, coding "Hello World" or other little webapps running few controllers and JSP.
Each time I wanna run the app from within Eclipse, nothing happens. I just get a 404 error.
In order to make the web app works, I have to run my Tomcat outside Eclipse (ie launch Tomcat from Windows with the startup.bat command line) and deploy a War through the manager-gui window of Tomcat.
So it works, but it would be more comfortable directly from within Eclipse on the embedded servers because this way running tests are so loooooooooong...
In Eclipse, I tried :
Run on Server -> 404
Run a Maven conf with Clean-Install goals,
obtained a War, but was unable to use it from within Eclipse (it's
the same War I use in the Tomcat GUI) as I saw it here
So can someone tell me how to run a Spring webapp from with Eclipse to make my work easier ?
Thanx by advance.
You need to enable 'Use Tomcat Installation' option in tomcat server when controlling it inside eclipse.
Please check this link
Tomcat not starting from eclipse, this will solve your issue.

How to run/debug java web service project in eclipse

I have a Java Web Service project which was just handed over to me by a colleague who just resigned (no one is assisting me in my new company). Im new to Java (J2EE) and my background is .Net + frontend + azure so I am pretty much very confused with setting up and running the java project. Also, Since my background is .Net Im referencing everything with how things work in Visual Studio from running a project, setting up a project to setting up and debugging a WCF project which I realized now is very different from eclipse + java.
I would really appreciate if someone could explain to me how I can run this project which is supposedly a java web service (as I was told)?
First I have a project that is like this:
Im assuming that the project boxed as blue is the webservice (and the rest are just libraries)? Is this correct? if so how do I run and debug the project using eclipse
Second when I click on debug as -> debug on server this is all I see:
Another colleague told me to install JBOSS (I haven't installed a server in eclipse) because that is what they used. Is there good documentation (step-by-step guide) on how to install JBOSS to run in eclipse. Im assuming that JBOSS + eclipse is like IIS express + Visual studio. Are there also other alternatives to JBOSS + eclipse like perhaps tomcat + ecplise that I can configure.
I really really find it hard to setup the java web service project in eclipse I have little to no prior experience with java j2ee programming especially with web services so any clarifications with my questions would be much appreciated. To sum up:
How would I really know that the project is a java webservice?
If so, how do I run the project and host the project using debugging in eclipse with tomcat or jboss?
I would appreciate if anyone can point me to the right direction of figuring out the source code
From here we can only guide you, you will have to go through some tutorials to understand how java projects work.
Your project is a webservice project according to your web.xml file because its having context params for rest.
the context param sets a front url to your webservice which in this case is gametime.
Check these tutorials and you will understand how it works
http://www.mkyong.com/tutorials/jax-rs-tutorials/
Create simple examples given in the above tutorial and then you can execute your's program
Jboss is a application server which we use to run our app.
You can install jboss in eclipse or you can use it externally also.
To install eclipse and jboss you can follow the link
http://theopentutorials.com/tutorials/java-ee/installing-jboss-tools-in-eclipse/
The other option is to download eclipse and jboss seperately
and use them.
Go to jbosshome/bin
If you download both of them seperately
then in that case for jboss
Invoke the add-user.sh or add-user.bat script. ...
Choose to add a Management user. ...
Choose the realm for the user. ...
Enter the desired username and password. ...
Choose whether the user represents a remote JBoss Enterprise Application Platform 6 server instance. ...
Enter additional users. ...
Create users non-interactively.
After this go to eclipse and follow steps of below link to add jboss to eclipse
http://www.mastertheboss.com/eclipse/jboss-eclipse/jboss-and-eclipse
A Java web application among other things has a predefined directory structure including folders named WEB-INF, WEB-CONTENT etc.
On how to deploy a web application to Tomcat via Eclipse you can follow the steps in this tutorial.

Run JHipster SpringApplication via eclipse

I'm trying to run the JHipster application via my Eclipse Juno, using jdk 1.7.
The app seems to be loading properly (no console errors), but when i'm trying to reach the server with the client side (or via Postman, by sending a request to the REST servlets in port 8080), it's not responding.
However, when i'm running "mvn spring-boot:run" in the command shell, the server is loaded successfully and is responding to the exact same requests. Also, I managed to run the same command via eclipse with some maven configuration but it seems to be running only the target files (jars) and not the source code. I still haven't been able to run the source code of this app using eclipse in order to properly debug it.
Any suggestions?
Thanks!
So the answer is quite trivial, but since I spent several hours to reach it, it might save some time for others-
Download & install STS IDE.
Import the project as existing Maven project.
Run/Debug the project.
I tried to run it via Eclipse the whole time (wasn't familiar with STS to be honest) and this probably needs some extra configuration (another comment with explanations on eclipse configuration will be much appreciated). Once you work with STS, it's easy.
You should not need STS, just Eclipse with the J2EE stuff.
I've imported the sample jhipster in Eclipse (without STS) as a Maven project and everything was OK, after installing the maven dependencies.
To run the project, run as an application and search for the Application (com.mycompany.myapp.Application)
This app works for me: https://github.com/jhipster/jhipster-sample-app. It is stuck on Boot RC5 which probably means it's a bit old. Maybe Julien can comment on that (or update it)?

Running Maven project on glassfish server

I want to run web based Maven project on glassfish server. I am totally new on maven. However, i have successfully build the maven project and glassfish server is up and running also. Moreover, there is WAR file also in target folder but i am confused what is the next step to run that project on glassfish ?
Any help will be highly appreciated.
You have different options to solve this task:
If you are new to Eclipse I suggest to change to NetBeans. It comes with integrated support for application server deployments. You just add your maven (or nearly any other type of project like WAR, EJB and EAR) project and your desired application server instance (Glassfish) and you are ready: Right-click your project and choose Deploy and it'll get deployed to your server. NetBeans also supports hot-deployment.
You can deploy your WAR file manually in GLASSFISH_ROOT/glassfish/domains/domain1/autodeploy and it'll get deployed if your server is running. But this is not very efficient during development.
If you want to stay with Eclipse you can use the maven-glassfish-plugin or this maven plugin to do the deployment for you. I'm not sure which one is better but this topic is also discussed in this question and this question.

One click build and deploy using Eclipse/Maven/JBoss AS 7

I was wondering if it is possible to make a Java EE application being managed by Maven and automatically deploy it to JBoss all from Eclipse. To my knowledge I current right click on my project and select "Make install". After that completes, I open the server pane and right click on my deployed ear and either select "Full Publish" or "Incremental Publish". Is there a way to condense these actions into one click? I tried to write a windows batch file but I didn't have much luck with that, and it would only work for our devs working on Windows machines. I know I can make run configurations but when I try to make one it is very intimidating and I get frustrated and give up.
Thanks for your help!
You can use JBoss Tools 3.3.0 (Current milestone M4) with the maven integration to easily deploy projects (wars or ears) to your AS7 server.
Once you defined your AS7 instance in eclipse, all you have to do is right click on your project > Run As ...> Run on Server. It'll start your app server if it's stopped, or just deploy your app if it's already running.
See http://vimeo.com/25768303
and http://community.jboss.org/en/tools/blog/2011/11/09/jboss-tools-shift-happens-in-m4
If you are using maven, you can use the cargo plugin: http://cargo.codehaus.org/Maven2+plugin
You just configure where the JBoss is installed, set the plugin to run in the phase you want (or make a new one) and you are all set.
You can also create different configurations for different profiles, so you have local, integration, test, production, etc... And just by running with the selected profile deploys the ear in the server, remote or local.
If you want more control, you can set the path of the container as a variable that you pass in the Eclipse run configuration, that way each developer can have their servers in different paths.