JAVAEE EXAMPLE

Simple Library Application using JavaEE 7 Technology (NOTE: This is an over engineer example)

Tools & Library

• Apache Maven (3.3.9)
• MariaDB (10.0.29)
• Wildfly (10.1.0.FINAL)

Environment

Database

To be able running this project first step is to setup the database, in this project used mariaDB database. Database was named library with username: user, password: password, to make it simple run command below:

CREATE DATABASE IF NOT EXISTS library;
ALTER DATABASE library DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL PRIVILEGES ON library.* TO user@localhost IDENTIFIED BY 'password';

Schema & Data

DDL schema and data was stored in src/main/resources/db. For command line user, execute command below from project directory:

mysql --user="user" --password="password" --database="library" < src/main/resources/db/schema.sql
mysql --user="user" --password="password" --database="library" < src/main/resources/db/data.sql

Datasource

Create mysql datasource with JNDI name: java:jboss/datasource/libraryDS

NOTES

• @stateless: is EJB which is manage our transactional in jpa, we don't need to manage transaction, commit, rollback. etc.

• Watchout using @SessionScope in JSF, make sure to use from javax.enterprise.context.SessionScoped

• @Model: is a stereotype for @Named & @SessionScoped in JSF

• Wildfly App Server as default using SLF4J for logging implementation, so in pom.xml made SLF4J scope as provided

• Because I put JSF files under folder views, so need to open in browser like this: javaee/views/main.xhtml

• Entities class need to specified table name with @Table

• To be able perform get all data, need to made an NamedQuery

• [ERROR] Caused by: java.lang.IllegalArgumentException: WFLYEE0040: A component named 'xxx' is already defined in this module"}} just perform:

  • wildfly:undeploy
  • clean install
  • wildfly:deploy

• Building JAX-RS always use JsonArray instead JsonObject

• WILDFLY 10.1.0 Supported SHA-512, to be able encrypt something run command bellow

  java -cp WILDFLY_HOME/modules/system/layers/base/org/picketbox/main/picketbox-4.9.6.Final.jar org.jboss.security.Base64Encoder <password> <message-digest>
  example:
  java -cp WILDFLY_HOME/modules/system/layers/base/org/picketbox/main/picketbox-4.9.6.Final.jar org.jboss.security.Base64Encoder sukma SHA-512
  

• @XmlTransient in entity variable will prevent to be serialized as xml or json when using JAX-WS or JAX-WS. At the moment I just know that I need to add @XmlRootElement and @XmlAccessorType(XmlAccessType.FIELD).

• @XmlAccessorType(XmlAccessType.FIELD) It's very great because we don't need to made an getter and setter, it will automatically generate a xml or json from variable enitity

References

• web.xml deployment descriptor
• Java Logging
• Logback Configuration
• JSF @ManagedBean deprecated, used CDI @named
• JavaEE descriptor
• JavaEE PetStore
• Lightweight JavaEE
• JavaEE Structure
• How to Tacke JavaEE
• Configure JavaEE with Wildfly
• Best Practice JPA
• JAAS in Wildfly 10
• Form Based Authentication
• JDBC Realm
• JavaEE Authentication
• Edit Page in JSF
• ViewScoped in CDI