1.在resources目录下增加features/features.xml文件

<?xml version="1.0" encoding="utf-8"?>
<features xmlns="http://karaf.apache.org/xmlns/features/v1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://karaf.apache.org/xmlns/features/v1.0.0 http://karaf.apache.org/xmlns/features/v1.0.0">
    <feature name="openjpa" version="1.0.0-SNAPSHOT">

        <!-- feature url: mvn:com.apogado.blogjpa/blogjpa-feature/1.0.0-SNAPSHOT/xml/features -->

        <!-- feature dependencies -->
        <feature>jpa</feature>
        <feature>http</feature>
        <feature>jndi</feature>
        <feature>transaction</feature>

        <!-- openjpa library dependencies -->
        <bundle>mvn:commons-collections/commons-collections/3.2.1</bundle>
        <bundle>mvn:commons-pool/commons-pool/1.5</bundle>
        <bundle>mvn:commons-dbcp/commons-dbcp/1.4</bundle>
        <bundle>mvn:commons-lang/commons-lang/2.5</bundle>
        <bundle>mvn:net.sourceforge.serp/com.springsource.serp/1.13.1</bundle>
        <bundle>mvn:org.osgi/org.osgi.enterprise/5.0.0</bundle>
        <bundle>mvn:org.osgi/org.osgi.compendium/4.3.0</bundle>

        <!-- install openjpa -->
        <bundle>mvn:org.apache.openjpa/openjpa/2.2.0</bundle>

        <!-- install db client -->
        <bundle>mvn:org.apache.derby/derbyclient/10.9.1.0</bundle>

        <!-- application bundles -->
       <!-- <bundle>mvn:com.apogado.blogjpa/blogjpa-commons/1.0.0-SNAPSHOT</bundle>
        <bundle>mvn:com.apogado.blogjpa/blogjpa-datasource/1.0.0-SNAPSHOT</bundle>
        <bundle>mvn:com.apogado.blogjpa/blogjpa-store/1.0.0-SNAPSHOT</bundle>-->
        <!--karaf command: features:addurl mvn:com.sunlf.test.project/openjpa/1.0/xml/features-->
    </feature>
</features>

<plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>attach-artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>attach-artifact</goal>
                        </goals>
                        <configuration>
                            <artifacts>
                                <artifact>
                                    <file>target/classes/features/features.xml</file>
                                    <type>xml</type>
                                    <classifier>features</classifier>
                                </artifact>
                            </artifacts>
                        </configuration>
                    </execution>
                </executions>
            </plugin>