源码下载

分层:

modual:

主要作用于包级管理与共享代码

lifecycle:

主要作用于执行期间的模块管理与訪问osgi底层框架

service:

主要作用于多模块之间的相互通信

demo:

hello-provider/pom.xml

<?

xml version="1.0"?>

<project

	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"

	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

	<modelVersion>4.0.0</modelVersion>

	<parent>

		<groupId>com.demo</groupId>

		<artifactId>pom</artifactId>

		<version>0.0.1-SNAPSHOT</version>

	</parent>

	<artifactId>hello-provider</artifactId>

	<packaging>bundle</packaging>

	<name>hello-provider</name>

	<url>http://maven.apache.org</url>

	<properties>

		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

	</properties>

	<dependencies>

		<dependency>

			<groupId>junit</groupId>

			<artifactId>junit</artifactId>

		</dependency>

		<dependency>

			<groupId>org.osgi</groupId>

			<artifactId>org.osgi.core</artifactId>

		</dependency>

	</dependencies>

	<build>

			<plugins>

				<plugin>

					<groupId>org.apache.felix</groupId>

					<artifactId>maven-bundle-plugin</artifactId>

					<configuration>

						<instructions>

							<Export-Package>org.hello.provider</Export-Package>

							<Import-Package>org.osgi.framework</Import-Package>

							<Bundle-Activator>org.hello.provider.impl.UserServiceActivator</Bundle-Activator>

							<Private-Package>org.hello.*</Private-Package>

						</instructions>

					</configuration>

				</plugin>

			</plugins>

	</build>

</project>

hello-provider/BundleActivator:

package org.hello.provider.impl;

import org.hello.provider.IUserService;

import org.osgi.framework.BundleActivator;

import org.osgi.framework.BundleContext;

public class UserServiceActivator implements BundleActivator {

	public void start(BundleContext context) throws Exception {

		System.out.println("registerService......");

		context.registerService(IUserService.class.getName(),

				new UserService(), null);

	}

	public void stop(BundleContext context) throws Exception {

	}

}

hello-client/pom.xml:

<?xml version="1.0"?>

<project

	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"

	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

	<modelVersion>4.0.0</modelVersion>

	<parent>

		<groupId>com.demo</groupId>

		<artifactId>pom</artifactId>

		<version>0.0.1-SNAPSHOT</version>

	</parent>

	<artifactId>hello-client</artifactId>

	<packaging>bundle</packaging>

	<name>hello-client</name>

	<url>http://maven.apache.org</url>

	<properties>

		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

	</properties>

	<dependencies>

		<dependency>

			<groupId>junit</groupId>

			<artifactId>junit</artifactId>

		</dependency>

		<dependency>

			<groupId>org.osgi</groupId>

			<artifactId>org.osgi.core</artifactId>

		</dependency>

		<dependency>

			<groupId>com.demo</groupId>

			<artifactId>hello-provider</artifactId>

		</dependency>

	</dependencies>

	<build>

		<plugins>

			<plugin>

				<groupId>org.apache.felix</groupId>

				<artifactId>maven-bundle-plugin</artifactId>

				<extensions>true</extensions>

				<configuration>

					<instructions>

						<Import-Package>org.hello.provider,

							org.osgi.framework

						</Import-Package>

						<Bundle-Activator>org.hello.client.Client</Bundle-Activator>

						<Private-Package>com.demo.hello.*</Private-Package>

					</instructions>

				</configuration>

			</plugin>

		</plugins>

	</build>

</project>

hello-client/BundleActivator:

package org.hello.client;

import org.hello.provider.IUserService;

import org.osgi.framework.BundleActivator;

import org.osgi.framework.BundleContext;

import org.osgi.framework.ServiceReference;

public class Client implements BundleActivator {

	public void start(BundleContext context) throws Exception {

		ServiceReference

		   reference=context.getServiceReference(IUserService.class.getName());

			System.out.println(((IUserService)context.getService(reference)).add());

	}

	public void stop(BundleContext context) throws Exception {

	}

}

将bundle安装到本地仓库且部署到karaf(參考前一篇)

启动bundle

通过下面命令查看bundle的id

list

通过下面命令,启动bundle

bundle:start 78

參考演示样例

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