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Questions tagged [java-ee-7]

Use this tag for questions relating specifically to Java Enterprise Edition 7.

Java Enterprise Edition 7 (JEE7) is a specification defining a collection of Java-based technologies and how they interoperate. JEE7 incorporates the features of technologies of JEE6, including EJB3, JPA, JSF, CDI, etc. and adding new features like WebSockets, etc.

Numerous implementations are available in the form of both commercial products and open source projects.

Information

This tag is specific for the Java EE 7 version. See the tag for general Java EE questions.

Useful links

1224 questions
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role of configuration classes in spring boot projects

i am new to springboot application development and i generated my project with the help of this url https://start.spring.io/ and when i open this project in my IDE i had 2 classes generated this is the first class public class ServletInitializer…
Priyamal
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Use H2-mem as persistence unit

i'm new in the world of java-ee. I try to implement an java-ee App. I'm having some trouble to configure the persistence.xml. I want the default java h2:mem to be my persistence unit. Hier is my persistence.xml
Lycone
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Maven Plugin For CodeSniffing

I am just wondering if there is a maven plugin that parses source code and alert developers of non conformance coding style? Thanks
xiarnousx
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Not getting proper Image display using Web socket Api in chat application

I am building a chat application using web socket api introduced in javaEE 7. I have been able to send text messages in chat successfully but when I'm sending images over chat, image is not displayed properly. Instead of image some random dots are…
Prateek Sharma
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1 answer

covert byte stream to a image file in java

How to convert a byte stream to a image file and show the converted image to the application user. The byte stream is return to my application by the client web service.
Shalika
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Standard tools for URL normalization and standardization?

I am java developer. Are there any standard tools for URL normalization and standardization? URL normalization (or URL canonicalization) is the process by which URLs are modified and standardized in a consistent manner. The goal of the…
user755806
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Real time web app - Which language/framework?

i'm starting to develop a web application for which I need real-time capability. In particular, as result of a server-side event (without client request), the client must refresh the view. The best solution seems to be a websocket communication. My…
frank
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2 answers

How to refer properties file or excel file located in resources folder?

I created a simple maven project. I placed one properties file and one xlsx file in src/main/resources folder. How can i load the properties/excel files? I tried as below. InputStream inputStream = null; try { inputStream = new…
user755806
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2 answers

Choose appropriate UI technology in Java EE application

There are several approaches to choose from when creating new Java EE 7 application. JSP JSF (Facelets) plain HTML 5 + JavaScript ??? The question is - please, show the conditions when it is better to use one or another UI technology, what are the…
experimenter
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JSF 2.2 exception in Liferay

I try to deploy my jsf-portlet on Glassfish 4 with JSF 2.2. Last liferay-faces-bridge-impl (3.1.2) supported only JSF 2.1, so i have to use 4.1.0-ga1-SNAPSHOT (https://oss.sonatype.org/content/repositories/snapshots/ repository), but getting…
dmitrievanthony
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When using EclipseLink with a JavaEE Application Server , how can I make my own Connector class use the AP server's connection pool?

I need to use my own JDBC Connector　and　Connection. So I first tried to set up my own connector our own connector that inherits from JNDIConnector in the eclipselink.jdbc.connector property with reference to the following site. hibernate - How to…
UKnowWhatUKnow
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Java EE - study material

I want to learn Java EE, but I did not find good material to study. Could you recommend me some tutorials, or maybe some books that are easy to understand? I need to learn especially Java EE 7. Thank you!
abc
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NullPointerException when setting attribute in Tomcat

Hello Please i need some help in Java EE. I recently built a project in Java EE on Netbeans using Maven and Glassfish and everything was working fine. We were the asked to make it run under Tomcat and TomEE but i can't figure out why i'm getting…
The_Thinker
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Load desired EJBs only

Technology I'm using: JavaEE7, JSF2.2. I have one project called "entity" which contains all the entity, repository, DAO (Stateless EJB). Other projects will import "entity" project and use this project to connect to DB. The problem is that "entity"…
NamNVH
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How to add "sign up with your Facebook account feature" in a website built in Java EE?

In my website which is built in Java EE, I want to add a feature so that the users can login into my webpage using their Facebook login details or Gmail login details.
RohitVishal
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