基于Maven构建OSGI(二)
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6、部署OSGI Bundle 到Maven 仓库
首先下载Nexus professional(收费)，地址为：
http://nexus.sonatype.org/download-nexus.html
当前最新版本为1.9.2.2。
压缩文件为：
解压之后有两个文件夹，如下图：
进入 nexus-professional-webapp-1.9.2.2\bin\jsw 目录找到和自己相应系统的文件夹，如下图所示：
我的为 windows-x86-32 。然后执行 nexus.bat 。如下图：
在地址栏输入： http://localhost:8081/nexus/
如图：
点击Log In。admin用户的密码为admin123. d eployment 用户的密码为 deployment 123。
设置~/.m2/setting.xml文件的内容如下：
<settings>
<mirrors>
<mirror>
<!--This sends everything else to /public -->
<id>nexus</id>
<mirrorOf>*</mirrorOf>
<url>http://localhost:8081/nexus/content/groups/public</url>
</mirror>
</mirrors>
<profiles>
<profile>
<id>nexus</id>
<!--Enable snapshots for the built in central repo to direct -->
<!--all requests to nexus via the mirror -->
<repositories>
<repository>
<id>central</id>
<url>http://central</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>http://central</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
<servers>
<server>
<id>nx-snapshots</id>
<username>deployment</username>
<password>deployment123</password>
</server>
<server>
<id>nx-releases</id>
<username>deployment</username>
<password>deployment123</password>
</server>
</servers>
<activeProfiles>
<!--make the profile active all the time -->
<activeProfile>nexus</activeProfile>
</activeProfiles>
</settings>
设置父级pom.xml文件，在<project>节点下加入如下内容：
<distributionManagement>
<repository>
<id> nx -releases </id>
<name> Nexus Releases </name>
<url>http://localhost:8081/nexus/content/repositories/releases </url>
</repository>
<snapshotRepository>
<id> nx -snapshots </id>
<name> Nexus Snapshots </name>
<url> http://localhost:8081/nexus/content/repositories/snapshots </url>
</snapshotRepository>
</distributionManagement>
新建 Maven 构建命令， deploy – DremoteOBR 。然后会在 Snapshots 中看到如下图所示的内容：
完成此步骤之后，就可以在Maven中引用其他文件一样来依赖该jar文件。例如：
<dependency>
<groupId> com.yihua.osgi.test- osgi </groupId>
<artifactId>IQueryWor </artifactId>
<version> 0.0.1-SNAPSHOT </version>
</dependency>
注册web应用请参考如下实例程序：
package testweb.internal;
import javax.servlet.Servlet;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceListener;
import org.osgi.framework.ServiceReference;
import org.osgi.service.http.HttpService;
/**
* Extension of the default OSGi bundle activator
*/
public final class ExampleActivator implements BundleActivator, ServiceListener {
private BundleContext bundleContext;
private ServiceReference ref;
private Servlet servlet;
public void start(BundleContext context) throws Exception {
bundleContext = context;
servlet = new QueryWebServlet(bundleContext);
// 在HttpService中注册Servlet
registerServlet();
}
public void stop(BundleContext context) throws Exception {
try {
unregisterServlet();
} catch (Throwable t) {
t.printStackTrace();
}
servlet = null;
bundleContext = null;
ref = null;
}
public void serviceChanged(ServiceEvent event) {
switch (event.getType()) {
case ServiceEvent.REGISTERED:
registerServlet();
break;
case ServiceEvent.UNREGISTERING:
unregisterServlet();
break;
}
}
/*
* 注册Web应用
*/
private void registerServlet() {
if (ref == null) {
ref = bundleContext
.getServiceReference(HttpService.class.getName());
}
if (ref != null) {
try {
HttpService http = (HttpService) bundleContext.getService(ref);
if (null != http) {
// 注册动态资源Servlet
http.registerServlet("/osgi/servlet", servlet, null, null);
// 注册静态资源HTML
http.registerResources("/osgi/file", "webapp", null);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
/*
* 卸载Web应用
*/
private void unregisterServlet() {
if (ref != null) {
try {
HttpService http = (HttpService) bundleContext.getService(ref);
if (null != http) {
http.unregister("/osgi/servlet");
http.unregister("/osgi/file");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
更详尽的内容请参考其他相关OSGI资料。
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