Java EE (J2EE) Tutorial for beginners Part5

Java EE (J2EE) Tutorial for beginners Part5: Spring Framework + Spring Webflow + Spring Security + JPA (Hibernate) + JSF 2.0 (PrimeFaces) + Apache Maven 2 + Apache Tomcat + Subclipse + Oracle RDBMS + Eclipse IDE

[tonyhoward]

For those of you having problems with the web.xml not being updated to include a servlet-mapping section after adding a new servlet to the project, this is because you are using dynamic web module version 3.0, and not 2.5. I was using apache tomcat v7, which when selected while configuring this will result in having to use dynamic web module 3.0. I had to install Tomcat v6, delete the project, and add the project plus the servlet with dynamic web module set to 2.5 (this time it let me keep this setting after selecting default tomcat v6 configuration). After checking the web.xml file, the serblet-mapping section has been added and I can run the application on the server (after setting the correct URL) successfully.

[fromtibet]

@Arthur Vin

Thank you so much for sharing your knowledge the people, who needed help the way you do. ALL GREAT and please continue ... ( Tibetan )

[hexodo]

Arthur, thank you very much for the tutorials. They are very useful. But, with all the respect you deserve, the only thing to improve would be to raise the volume of your voice and the fluency of your explanations. Thank you. Continue working and being better!

[stephenpaul]

Awesome.
Just a quick note : Since Servlet 3.0, servlets can be mapped by the @WebServlet annotation above the class instead of by web.xml

This is great! I hope you continue with this. I am waiting for the next one :)

[rohit]

It would be great to learn spring webflow ..waiting eagerly for that :)

[hishamkhartoum]

Thanks you very much, I have watch this video and it save for me much time in learning java EE

[theoaristi]

Why my XML is not updated after creating a servlet? I am using Tomcat 7.0. 

[mikymouse]

great tutorial!!!! I had some problems with PrintWriter... just you should be sure to have "import java.io.PrintWriter; " in the beginning of the servlet file.

[avneethall]

If anyone is still having an issue and getting a '404 not found' error; I had to add " " before the public class in the java file. Hope this helps.

[ArtyNelu]

i found the solution for the same problem please folow this steps :

help>Install new software
paste in "work with" click add
give any name you want - plugin
In the list select>"Web, XML, Java EE and OSGi Enterprise Development">Eclipse Java EE

Developer Tools. select and install it.
After restart you will have your Dyanmic web project option.
Thank You.

[annao]

To everyone who got similar problem : Eclipse displays an error message saying that PrintWriter cannot be resolved to type.and then you get HTTP status 404.
You need to import java.io.PrintWriter. Or java.io.
Or just press Ctrl + Shift + O. It's a shortcut, which Eclipse provides to Organize Imports By default. This imports each class explicitly.

[diivandi]

thanks for this tutorial.. very helpful! :)

[parastookhosrowshahi]

Thank you for your good tutorials, unfortunately, I got an error when I am running the ServletJSPExample, the error is:HTTP Status 404 - /ServletJSPExample/, I removed the whole thing, and installed it again, but still have problem, what should I do?

[johnnyb]

Thank you for tutorial.
I hope doing everything rigt but if i started server than can not finish this part of tutorial because some problem is there. I just changed the port and server started. After this tryed to run on server like in tutorial still browser didnt receive the message Eror 404. if i wanna restart server, after synchronized with projekt finish with eror of server and can not start. Please how to resolve this problem?

[sohelimran]

actually in the web.xml servlet tag is not generated...may be thats the problem.please suggest

[Chiz]

I'm using Eclipse Kepler with GlassFish 4.0. When I create servlet nothing appears in web.xml but instead I have for ServletExample class.
Is it just a matter of style?

[SaurabhShrivastava]

Thanks! Authur

For me it was giving continuous error until I run this code by doing right click in ServletExample.Java file and select run As-->Run On Server

[amrithathorath]

Hi... Firstly gud tutorials.
I followed all the steps n I'm able to use port 8080.
However, wen I run the proj, the output appears only on the console window and a separate page does not appear, neither does it appear on the web browser.

[JasonRichardTesch]

OK, I got mine to work, but I don't know why. In your video you had those server lines in your web.xml, so I added those in and tomcat wouldn't restart to display the webpage. I take them out and it does...hmm very strange.