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Mastering Java EE Development with WildFly

You're reading from   Mastering Java EE Development with WildFly Create Enterprise-grade Java applications with WildFly

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781787287174
Length 468 pages
Edition 1st Edition
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Author (1):
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Luca Stancapiano Luca Stancapiano
Author Profile Icon Luca Stancapiano
Luca Stancapiano
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Table of Contents (20) Chapters Close

Preface 1. Introducing Java EE and Configuring the Development Environment 2. Working with Dependency Injection FREE CHAPTER 3. Persistence 4. Implementing Business Logic 5. Working with Distributed Transactions 6. Creating REST Services 7. Implementing WebSockets 8. Working with Messaging 9. Implementing a Mail Client 10. Asynchronous REST 11. Asynchronous EJB 12. Batches and Workflows 13. Working with Servlets and JSP 14. Writing a JSF Application 15. Sharing the Web Sessions 16. WildFly in Cloud 17. Share your Data 18. Deployment 19. Working with OSGi

File upload

A more efficient and simple upload method has evolved in Java EE 7. Now, we can upload files through our web forms with little code. In this section, we will see a very practical sample. Now, let's start creating an upload form through a JSP page:

<form action="${pageContext.request.contextPath}/FileUploadServlet" method="post" enctype="multipart/form-data">
<input type="file" name="file" size="50" /> <br />
<input type="submit" value="Upload File" />
</form>

With this code, we can upload files on a chosen platform. The web form allows us to interact with a server. In this case, we can attach a file through the input file tag. To send the file to the server, we need to configure the form with a particular enc type, the multipart/form-data. It is the...

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