POM EJEMPLO PARA ALUMNOS

log4j.properties

# Root logger option
log4j.rootLogger=INFO, stdout

# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

persistence.xml

<?xml version="1.0" encoding="UTF-8" ?>
<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="test">
    
        <class>dom.Persona</class>
        <exclude-unlisted-classes/>
        <properties>
            <property name="datanucleus.ConnectionDriverName" value="com.mysql.Driver"/>
            <property name="datanucleus.ConnectionURL" value="jdbc:mysql://localhost/test/"/>
            <property name="datanucleus.ConnectionUserName" value="root"/>
            <property name="datanucleus.ConnectionPassword" value="root"/>
        </properties>
    </persistence-unit>
    
    
    <persistence-unit name="test2">
        <class>dom.Materia</class>
        <exclude-unlisted-classes/>
        <properties>
            <property name="datanucleus.ConnectionDriverName" value="com.mysql.Driver"/>
            <property name="datanucleus.ConnectionURL" value="jdbc:mysql://localhost/test2/"/>
            <property name="datanucleus.ConnectionUserName" value="root"/>
            <property name="datanucleus.ConnectionPassword" value="root"/>
        </properties>
    </persistence-unit>

</persistence>

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.ifes</groupId>
  <artifactId>datanucleus</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <dependencies>
        <dependency>
            <groupId>org.datanucleus</groupId>
            <artifactId>javax.jdo</artifactId>
            <version>3.2.0-m6</version>
        </dependency>
        <dependency>
            <groupId>org.datanucleus</groupId>
            <artifactId>datanucleus-core</artifactId>
            <version>[5.0.0-release, )</version>
        </dependency>
        <dependency>
            <groupId>org.datanucleus</groupId>
            <artifactId>datanucleus-api-jdo</artifactId>
            <version>[5.0.0-release, )</version>
        </dependency>
        <dependency>
            <groupId>org.datanucleus</groupId>
            <artifactId>datanucleus-rdbms</artifactId>
            <version>[5.0.0-release, )</version>
        </dependency>
        
        <dependency>
		    <groupId>mysql</groupId>
		    <artifactId>mysql-connector-java</artifactId>
		    <version>5.1.6</version>
		</dependency>
		
		<dependency>
		    <groupId>log4j</groupId>
		    <artifactId>log4j</artifactId>
		    <version>1.2.17</version>
		</dependency>

		
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.datanucleus</groupId>
                <artifactId>datanucleus-maven-plugin</artifactId>
                <version>5.0.2</version>
                <configuration>
                    <api>JDO</api>
                    <persistenceUnitName>test</persistenceUnitName>
                    <log4jConfiguration>${basedir}/log4j.properties</log4jConfiguration>
                    <verbose>true</verbose>
                </configuration>
                <executions>
                    <execution>
                        <phase>process-classes</phase>
                        <goals>
                            <goal>enhance</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>