Java EE 7: Web Services

Learn how to use Jakarta Web Services to build, finetune, and run RESTful APIs.

Introduction

• Jakarta Web Services: Integrating applications over the internet
• What you should know

1. Web Services: What? and Why?

• What is a web service?
• Why are web services needed?
• APIs, web services, and endpoints

2. Web Services in Jakarta EE

• REST and SOAP
• XML/SOAP-based vs. RESTful web services
• RESTful and XML/SOAP-based web service use cases
• History of web services: From Java EE to Jakarta EE
• What's new in Jakarta EE for web services?
• The cloud-native focus in Jakarta web services

3. Set the Stage to Build a REST API

• CRUD and HTTP methods
• Create and configure a basic web application
• Configure Jakarta RESTful Web Services
• Add a Resource class

4. Build the REST API for the Read Action

• Implement resource method for reading: HTTP GET
• Use path parameters
• Use query parameters
• Explore response value types: Media types
• Media types in action
• ResponseBuilder and methods
• Control the response via ResponseBuilder
• Challenge: Travel app
• Solution: Travel app

5. Build the REST API for Create, Update, and Delete Actions

• Use HTTP POST for the CREATE action
• Use HTTP PUT for the UPDATE action
• Use HTTP DELETE for the DELETE action
• Challenge: Travel app
• Solution: Travel app

6. Fine-Tune Your Jakarta RESTful Web Services

• Validate your REST endpoints
• Perform single field validations in REST
• Perform custom validations in REST
• Handle exceptions in REST endpoints
• Implement security in REST endpoints

7. RESTful Applications in the Java SE Environment

• The Java SE bootstrap API
• Create and configure the Java SE app
• Build the RESTful application
• Run the application and test the endpoint

Conclusion

• Next steps