WildFly + Hibernate

Question

I\'ve been struggling for days with configuring Hibernate and run it on WildFly.

Here is my code:

META-INF/persistence.xml

Answer 1

A JTA datasource is managed by the jpa container (inside wildfly). You must define the url, username, password in the standalone.xml. Search for the datasources subsystem <subsystem xmlns="urn:jboss:domain:datasources:4.0"> and add a datasource definition, for example:

<datasource jta="true" jndi-name="java:/jdbc/myDS" pool-name="MyDS" enabled="true" use-java-context="true" use-ccm="true">
    <connection-url>jdbc:mysql://localhost:3306/blog</connection-url>
    <driver>mysqldriver.jar</driver>
    <security>
        <user-name>username</user-name>
        <password>password</password>
    </security>
</datasource>

Next you have to create a module for your database driver. For the details check the documentation: https://docs.jboss.org/author/display/WFLY8/DataSource+configuration

Then your persistence.xml will look like this:

<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
         http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
    version="2.1">

    <persistence-unit name="blog">
        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
        <jta-data-source>jdbc/myDS</jta-data-source>
        <properties>
            <property name="hibernate.archive.autodetection" value="class" />
             <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
         <property name="hibernate.hbm2ddl.auto" value="create"/>
        <property name="hibernate.show_sql" value="true"/>
         </properties>
     </persistence-unit>
 </persistence>

During server and component start watch for exceptions.

Answer 2

In file persistence.xml you must include class to persist

<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>

<class>package.User<class>

<properties>
    <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/blog?createDatabaseIfNotExist=true"/>
    <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
    <property name="hibernate.connection.username" value="abc"/>
    <property name="hibernate.connection.password" value="abc"/>
    <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
    <property name="hibernate.hbm2ddl.auto" value="create"/>
    <property name="hibernate.show_sql" value="true"/>
    <property name="jboss.as.jpa.providerModule" value="org.hibernate:5.0"/>
</properties>

You can include as many classes as you like