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:


      
      	
       
        4.0.0
       	
       		
        
         com.demo
        		
        
         pom
        		
        
         0.0.1-SNAPSHOT
        	
       	
       
        hello-client
       	
       
        bundle
       	
       
        hello-client
       	
       
        http://maven.apache.org
       	
       		
        
         UTF-8
        	
       	
       		
        			
         
          junit
         			
         
          junit
         		
        		
        			
         
          org.osgi
         			
         
          org.osgi.core
         		
        		
        			
         
          com.demo
         			
         
          hello-provider
         		
        	
       	
       		
        			
         				
          
           org.apache.felix
          				
          
           maven-bundle-plugin
          				
          
           true
          				
          					
            
            
             org.hello.provider, org.osgi.framework 
             
            
             org.hello.client.Client
             
            
             com.demo.hello.*

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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