How to use mkyong tutorial
Recently, received many emails for mkyong.com tutorials, about how to deploy the project to Tomcat, build the project with Maven, and also how to import it into Eclipse IDE.
Actually, almost all the mkyong.com tutorials are developed in Eclipse IDE (3.6 or 3.7), build with Maven (version 2 or 3) and deploy to Tomcat.
At the end of the tutorial, the entire Eclipse’s project and source code are zipped and provide user to download.
In this demonstration, we are using this “Struts 2 hello world example” tutorial, to show you how to download the project, build and import it into Eclipse IDE.
Hope this guide will help others to use the mkyong tutorial more easily. For those familiar with Maven and Eclipse, you can skip this guide.
1. Requirement
To use the tutorial, make sure you have following tools installed, and have some basic understanding about it, especially Maven.
- Installed Tomcat
- Installed Maven
- Installed Eclipse
2. Download Project
Scroll down to the end of the article, click on the download link.
3. Project Structure
Extract the downloaded zip file.
In this example, extract the zip files to following folder :
C:\Users\mkyong\Downloads\Struts2ExampleSee following extracted project structure, a standard Eclipse + Maven project structure.
To reduce the zip file size, i deleted all the classes in “target” folder, you need to build it to make it works, see next step.
4. Maven Build
Issue following Maven command to build the project :
mvn eclipse:eclipse -Dwtpversion=2.0
In this example, Windows, command prompt, build like this.
C:\Users\mkyong\Downloads\Struts2Example>mvn eclipse:eclipse -Dwtpversion=2.0
This tell Maven to download the entire project’s dependencies declared in pom.xml, and configure the deployment path in Eclipse properly… it make everything ready for developing and deployment.
5. Import into Eclipse
Everything is ready now, import the project into Eclipse IDE.
In Eclipse menu, select “File“, “Import…“, “General” –> “Existing Project into Workspace“, select the project file path and import it.
Your project structure should look like this :
6. Deploy to Tomcat
In Eclipse IDE, create a Tomcat instance, add the project and start it.
In Eclipse, review the console tab, make sure no error messages displayed, otherwise… send me an email :)
Done. Happy coding
References
- Maven official website
- Eclipse official website
- Struts 2 hello world example
- Maven dependency libraries not deploy correctly
Should your example work on Jetty or tomcat launched by a MVN plugin? right?
Yes, it should.
Hello. First of all, thank you for sharing your knowledge. Your tutorials are invaluable.
I was trying to follow the above tutorial but getting this error:
C:\workspace\StrutsSpringExample> mvn eclipse:eclipse -Dwtpversion
=2.0
[INFO] Scanning for projects…
[INFO] Searching repository for plugin with prefix: ‘eclipse’.
[INFO] org.apache.maven.plugins: checking for updates from central
[WARNING] repository metadata for: ‘org.apache.maven.plugins’ could not be retri
eved from repository: central due to an error: Error transferring file: repo1.ma
ven.org
[INFO] Repository ‘central’ will be blacklisted
[INFO] ————————————————————————
[ERROR] BUILD ERROR
[INFO] ————————————————————————
[INFO] The plugin ‘org.apache.maven.plugins:maven-eclipse-plugin’ does not exist
or no valid version could be found
[INFO] ————————————————————————
[INFO] For more information, run Maven with the -e switch
[INFO] ————————————————————————
[INFO] Total time: < 1 second
[INFO] Finished at: Mon Nov 05 15:54:55 EST 2012
[INFO] Final Memory: 2M/15M
[INFO] ————————————————————————
Any idea what might be causing this?
update the struts.xml
———————————–
welcome_user.jsp
for Tomcat7 ,eclipse 3.7, maven 3.0.3