How can I add my application to Tomcat in Eclipse?_问答_开发者

I have a web app built with Maven. Most of the time, I built the application using Intellij IDEA, but now I want to import the application in Eclipse to see something in this IDE.

After mvn eclipse:eclipse, I add in Eclipse the app, but when I try to add the app to the server (tomcat), I receive:

开发者_JS百科There are no resources that can be added or removed from the server

Solutions?

You need the project to have a Eclipse Dynamic Web Module facet. You can try doing this via the project properties dialog and looking at project facets, then clicking the appropriate check box. This may not be available however, so you may need to do the next thing.

Create a backup of your project and follow the directions at dzone.com. This'll allow you to modify the project facets via your eclipse .project file.

Keep in mind, once you add those facets, you cannot change them back via Eclipse. Definitely make sure you have a backup before starting.

This step worked for me:

Right-Click on the Project Name, then Maven-->Update Project.. Click OK

After doing this I was able to see my project in Add/Remove Programs.

As mentioned somewhere else adding Eclipse WTP didn't do any good, however I performed the above step after I had already added Eclipse WTP, so I am guessing that may not be needed. This was done for Eclipse Juno.

Hope this helps someone.

Edited: You can follow this link as above mentioned I think might have needed WTP and that add a lot of other things into the workspace.

http://blog.teamextension.com/maven-as-eclipse-dynamic-web-module-556

Check whether Maven Integration for Eclipse WTP is installed. If not, install it from Eclipse Marketplace
After installation restart Eclipse
Right click your project and Maven--> update project configuration
Delete tomcat and re create tomcat (clean tomcat,add your project,publish and enjoy)

I've got Tomcat 6, Java 1.6, and was trying to get it to work in Eclipse Juno Service Release 1's "internal server" (whatever that's called.) Here's what I did that worked for me:

(Found these instructions at http://www.mkyong.com/eclipse/eclipse-ide-tomcat-version-6-0-only-supports-j2ee-1-2-1-3-1-4-and-java-ee-5-web-modules/)

I should point out that I followed ClutchDude's instructions to make my project a Dynamic Web Module facet. It didn't work on its own for me, but maybe it was part of making it work in the end.
Using Eclipse (or other text editor), open the file

.settings/org.eclipse.wst.common.project.facet.core.xml
Find the line that reads

<installed facet="jst.web" version="3.0"/>
3.0 is for Tomcat 7.x (so says mkyong.) Change it to 2.5 (or 2.4).

I restarted Eclipse and it worked for my project.

The reason why this is happening is because eclipse by default looks for the deployment descriptor in the folder {project.home}/Webcontent/WEB-INF/web.xml where as the Maven puts them in src/main/webapp/WEB-INF/web.xml.

So when you are trying to add your project onto the server eclipse cannot find a deployment descriptor and hence you get the annoying message.

This can be solved by adding the following entries in .settings/org.eclipse.wst.common which can be found in

Project home folder in your workspace if it is a new maven project.
The folder where you already imported from if you are using Import -> Maven projects.

Make the following changes in to the org.eclipse.wst.common

wb-resource deploy-path="/" source-path="/src/main/webapp"/. Add this entry.
Edit --> property name="java-output-path"

Please check the following link from more details. http://java.dzone.com/articles/webapps-eclipse-and-maven. The comments section has an excellent example with a working project.

This issue was fixed for me my installing additional eclipse modules. in particular, the ones related to m2e-wtp. just do a search for m2e in the plugins search listing for your version of eclipse

If you face an error like "There are no resources that can be added or removed from the server", then

1) Go to the META_INF of your websvcsEAR and go to the application.xml.
2) Goto modules-> clickDetails and add the module that is existing. i.e., some EAR which your project demands.
3) Click ok
4) Now go to your server -> right click -> add and remove -> add your EAR.

Maybe you don't need add your application to the server's configuration. I think that you must use m2e eclipse plugin in order to launch the app.

For example, in your eclipse you will see a contextual menu called "Run as" if you right-click on your pom file. You can clicking on "Maven build" and Maven will download all the information needed to start tomcat.

I hope this helps you.

I used

 mvn eclipse:eclipse -Dwtpversion=2.0

in command line in the folder where I had my pom.xml. Then I refreshed the project in eclipse IDE. After that I was able to add my project.

I was able to resolve this by removing my EAR project from my Eclipse workspace, then re-importing it.

Well, with a Spring and maven project, i got it that way:

Eclipse Version: 2019-06 (4.12.0)
Java 1.8
Tomcat 7

Yes, go to Project Properties >> Facets >> select Dynamic Web Module but dont apply yet!!!

Right under, it should appear a link Further Configuration Available. Click on it, otherwise one will have to edit .settings/org.eclipse.wst.common.component manually. Update source directory to src/main/java. (source)

Then in Facets window check Java - mine was pointing to 11 even though i don't have Java 11 installed or configured like a JRE runtime. I could only add/remove when changed to 1.8. (source). Note: That was really the problem, why don't Eclipse get this configuration automatically from the project?

Finally Eclipse creates some directories like WEB-INF and META-INF, just delete them.