Java RESTful Web Services Tutorial for Beginner with Jersey and Tomcat

This video tutorial helps you get started with Java RESTful web services by developing a web application running on Apache Tomcat server – this web application hosts Java Restful web services powered by Jersey – an open source framework for developing RESTful web services in Java. Jersey is a reference implementation of JAX-RS (Java API for RESTful Web Services).

You will also learn to test RESTful web services using cURL and Postman tools, and code a RESTful web services client program using Jersey client API.

* Software programs used:
- Java Development Kit (JDK) 11
- Eclipse IDE 2019-09
- Apache Tomcat 9.0
- curl
- Postman

* Steps:
- Create Project & Specify Jersey Dependency
- Code Hello world Java RESTful Web Services
- Configure Jersey Servlet Container
- Test: Chrome, curl, Postman
- Use JSON for RESTful Web Services
- Code Client program

Timestamps
0:00 Introduction
0:22 What is RESTful Web Service?
4:20 Create Project and Specify Jersey Dependency
8:54 Code Hello World RESTful Web Services
13:44 Configure Jersey Servlet Container
17:31 Test RESTful Web Service using Chrome Browser
22:28 Test RESTful Web Service using curl
28:38 Test RESTful Web Service using Postman
34:12 Use JSON for RESTful Web Services
41:23 Code Client Program Consuming RESTful Web Services
49:34 Summary

[scientist_nick]

I originally spent more than 24 hours trying to understand REST Web Services with Eclipse Jersey (I work mostly with mobile and web apps as a developer). When I went through your video and your webpage on this, I could replicate everything and understand all of the things you mentioned. You deserve an accolade what can I say, thanks a bunch. I will recommend your video to my colleagues as well which are learning this.

[GhanaTableTennis]

Thanks a million for this tutorial. The tools I use are Glassfish 5.0, Java 8, Netbeans 11, and JEE8. Following your tutorial with such a setup works like charm. Thanks for sharing your knowledge.

[Sirmontmanful]

Great tutorial, man, video is almost 2 years old and it's still relevant

[tausifiqbal]

Thank you so much for such great video, finally I created REST Web Services with jersey without any error😊.

[skhandle]

Finally got no 404 error after watching your video. Thanks a ton😄

[amaryadav]

Thank you for this simple and clear tutorial, you are a saviour!

[arunprajapati]

Thank you for such an explanatory tutorial ! You deserve a big clap .

[ahmadjk]

Great tutorial, simple and practical. Thanks for the efforts!

[ruixue]

3:36 steps
5:16 convert project to Maven
5:50 add Jersey API
14:52 parameter config for

[kamilrozwaka]

Thanks a lot, your videos saved my life again!

[christiancamilogutierrezmo]

Awesome tutorial!!! It would be great, that you teach how to consume the web service with a web-form...!!! Greetings from Colombia!!!

[fernandolivia]

Thank you so much, this tuturial is excellent ...it helped me a lot.

[jinbeanpark]

Thanks for sharing the good tutorial video!

[vauvau]

Thank you for the dedication to French
people
i'm from belgium and i'm following your course on udemy. Thanks again. it would be great to make the same e-commerce web application using Spring, hibernate and if possible create and consume a web service.
I would be taker.
Merci beaucoup

[nagitokomaeda]

Hello! I am getting "localhost refused to connect" any idea how to fix this? At first it was because port 8080 was in used but I changed that already and I am still not able to connect to the localhost.

[yashbansal]

Can you please give some insights on what does <servlet-name>, <servlet-class>, <init-param> tags signifies and from where do u got their values.

[dickyr]

I followed your steps to create the Dynamic Web Project and after I clicked Finish, I got the following error in web.xml:
Multiple annotations found at this line:
- There is '1' error in 'javaee_7.xsd'.
- schema_reference.4: Failed to read schema document 'platform:/plugin/org.eclipse.xsd/cache/www.w3.org/2001/xml.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.
I have the latest versions of Tomcat (10.0.6) and Eclipse (2021-03). I see that my Dynamic Web Module Version is 4.0 (default) whereas yours is 3.0.
Can you help resolve the error?

[arulmurugan]

please give me spring mav using restful web services complete video sir.

[TheMrCalindo]

didn't you say jax-rs in the description not jax-ws ??

[GVB]

how can we use connection pool c3po, bonecp etc with rest api's jersy