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Jakarta EE Application Development

You're reading from   Jakarta EE Application Development Build enterprise applications with Jakarta CDI, RESTful web services, JSON Binding, persistence, and security

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Product type Paperback
Published in Feb 2024
Publisher Packt
ISBN-13 9781835085264
Length 316 pages
Edition 2nd Edition
Languages
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Author (1):
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David R. Heffelfinger David R. Heffelfinger
Author Profile Icon David R. Heffelfinger
David R. Heffelfinger
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Table of Contents (18) Chapters Close

Preface 1. Chapter 1: Introduction to Jakarta EE FREE CHAPTER 2. Chapter 2: Contexts and Dependency Injection 3. Chapter 3: Jakarta RESTful Web Services 4. Chapter 4: JSON Processing and JSON Binding 5. Chapter 5: Microservices Development with Jakarta EE 6. Chapter 6: Jakarta Faces 7. Chapter 7: Additional Jakarta Faces Features 8. Chapter 8: Object Relational Mapping with Jakarta Persistence 9. Chapter 9: WebSockets 10. Chapter 10: Securing Jakarta EE Applications 11. Chapter 11: Servlet Development and Deployment 12. Chapter 12: Jakarta Enterprise Beans 13. Chapter 13: Jakarta Messaging 14. Chapter 14: Web Services with Jakarta XML Web Services 15. Chapter 15: Putting it All Together 16. Index 17. Other Books You May Enjoy

Query and path parameters

In our previous examples, we have been working with a RESTful web service to manage a single customer object. In real life, this would obviously not be very helpful. The common case is to develop a RESTful web service to handle a collection of objects (customers, in our example). To determine what specific object in the collection we are working with, we can pass parameters to our RESTful web services. There are two types of parameters we can use: query and path parameters.

Query parameters

We can add parameters to methods that will handle HTTP requests in our web service. Parameters decorated with the @QueryParam annotation will be retrieved from the request URL.

The following example illustrates how to use query parameters in RESTful web services using Jakarta REST:

package com.ensode.jakartaeebook.queryparams.service;
//imports omitted for brevity
@Path("customer")
public class CustomerResource {
  private static final Logger...
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