When I bring up the "Add and Remove" resource dialog to add things like .war files (I think war is an example), I would like to know what sort of things constitute "resources" and how Eclipse identifies them as such. I am working on a new project that has a fairly complex Maven build and it is not clear to me what exactly I am adding to Tomcat. Could a directory be a resource? A pom file?
I should mention that I see a SNAPSHOT file (actually, the thing named this seems to be a Windows folder which does not hold jars) as a resource that can be added but the build does not seem to be producing a war or jar file which is named in this way. What does get added if I choose to add this resource seems to be composed of a bunch of jars or wars.
Perhaps you didn't create your project as "Dynamic Web Project", so Eclipse doesn't recognize it like a web project. Create new "Dynamic Web Project" or go to Properties -> Projects Facets and check Dynamic Web Module
It looks like entities other than jars can be added to a server.
Related
Working on a Dynamic Web Project I added a guava jar file to Deployment Assembly (Eclipse Photon) - thru Add -> Java Path Build Entry (same happens with Add -> Archives From File System)
I see that this jar gets deployed to the server and is actually inside /WEB-INF/lib of the generated and deployed WAR.
But my Project Explorer window looks like this and its WebContent/WEB-INF/lib folder is empty (I did project refresh)!
Is it normal behaviour?
In my opinion it breaks Least Astonishment Principle a lot!
It shouldn't appear there unless you actually copy the jar into the workspace (or link it, possibly).
The structure is as follows:
Actually deployed module is EAR.
EAR contains WAR module, and WAR module contains another JAR module.
In this last JAR, there are some generated classes and their parent folder is also used as source folder. Its path is "target/generated-sources/java".
The problem that is killing me, is that the deployed application throws ClassNotFoundException on server start, and the classes in question are the generated ones.
Now the trick:
if I explicitly change the Deployment Assembly in WAR project in Eclipse not to contain JAR project as "project", but as an archive from the JAR's project "target" folder, JBoss sees the generated classes and starts.
This solution however works only until next eclipse maven project update, so manual edit of deployment assembly is not really a solution.
Any ideas how to deploy or reorganise packages correctly?
OK, seems I have found the solution.
I looked through the build-path of the mentioned JAR file and saw that the entry Output folder pointed to target/test-classes.
After changing this entry to target/classes the application deploys and starts without any missing generated classes.
This is what worked for me:
Expand the 'target' folder of your maven project inside Eclipse (Project Explorer View);
Refresh it (F5);
Right click on your project on 'Servers' tab, then select "Full Publish";
Start your JBoss.
I had to enforce the JBoss Tool "Full Publish" to get an updated version of my target folder by Refreshing it manually on eclipse.
I don't know why but sometimes the Publishing from maven projects (even Full Publishes) do not copy classes from the target Project as it is in the file system. Maybe it's using some outdated memory info or some cache...
Anyway, this is what works for me.
After an update to Eclipse 4.15 and JBoss tools I got this problem too.
My solution: project -> properties -> Java Build Path --> Source
There my Output folder from my source was linked to project/target/classes, I changed this to project/target/project-projectversion/WEB-INF/classes
When I looked into the standalone JBoss folder I saw the folder structure of my source, but the classes where missing, when I changed the output folder the classes pop up and everything worked like before.
I am pretty sure the update made the problems.
I have a Dynamic Web Project that gets deployed as a WAR that I have created in Eclipse. The project depends on 2 other small projects. I have them marked for export, and have them on the build path, but Eclipse warns me that it will not be exported, and sure enough, I get a ClassNotFoundException when I try to compile.
If need be, I can pull all the java files into a .zip file, but I don't know how to add a .zip file as a dependency. I'm sure I'm making this harder than it needs to be.
Open the web project's Properties dialog (context menu, or Project menu from the menu bar) and go to the Deployment Assembly page. This is where you tell it to also make them jars when deploying.
Can someone guide me to setup a web app project in Eclipse. I want to have a Dynamic Web Project and multiple Pure Java Projects. My Web project will contain JSPs and Java projects will contain Struts Action classes, Spring Bean, Hibernate Entities etc. I want to use those Java Projects as dependency to the WAR. I have done work in such environments, but haven't setup a workspace from the scratch. Can you please guide me or share a link?
Note: I want to use Apache Tomcat or Glassfish as server
In every project you can set the JavaBuild Path properties.
So suppose you have project1 that is dependent on project 2 and some other libraries provided as jars. Go to that option for project1, choose tab Projects and add project2 (that of course is already a eclipse project), than go to tab Libraries and clic on Add external jars.. You are done. This is not dependant by the nature of the project.
Specifically, since you have a Dynamic Web Project, you'll need to go also to Deployment Assembly and add project2 and your jars to the list of files needed by the server.
I want to place development web.xml in another folder in eclipse.
This can be done using the Deployment Assembly properties. Right click on the web project, choose Properties, and then navigate to the Deployment Assembly panel. Remove the /WebContent entry (pointing to /) and then add another entry, of type Folder. It should be rooted where you want to keep the web.xml, and mapped to /.
This technique can be extended to make Eclipse work with arbitrary build tool source layouts.
You might want to use Apache Ant
for that purpose. You may define a "conf" directory and place all you config files there, or a resource directory for the same reason.
If haven't use ant for that purpose, I strongly recommend you to do so.
Here is a sample ant build.xml for a web app Sample Build.XML
I'll use Maven myself, but since you're just beginning, Ant would be just fine.
I am using the eclipse builder and not ant.
Actually what i did was that i defined web.xml in another folder. So now I have two web.xml, one for welogic with a lot weblogic specific stuff like filters. And i have another for development which i placed in another folder, in the web project and added this folder to the deployment descriptor for tomcat in eclipse. So now when i deploy the application, the web.xml for tomcat which is in my specified folder owerwrites the web.xml present in web-INF folder(in the deployment directory).
Looks to me a nice workaround.