Question

我正在开发简单的应用程序来演示Apache Karaf的使用。我在eclipse中开发了一个简单的基于maven的动态web项目。现在我想在apache karaf中部署它。以下是代码 -

Files.walkFileTree(Paths.get(Krawl.INDEXPATH), EnumSet.of(FileVisitOption.FOLLOW_LINKS), Integer.MAX_VALUE,
    new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
                throws IOException {
                // Do someting before directory visit
                return FileVisitResult.CONTINUE;
        }
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
                throws IOException {
                // Do something when a file is visited
                return FileVisitResult.CONTINUE;
        }
        @Override
        public FileVisitResult postVisitDirectory(Path dir, IOException exc)
                throws IOException {
                // Do Something after directory visit 
                return FileVisitResult.CONTINUE;
        }
});

POM.Xml中的依赖

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;


    public class DemoActivator implements BundleActivator {

        @Override
        public void start(BundleContext bundleContext) throws Exception {
            System.out.println("STARTING DEMO: hello, world");
        }

        @Override
        public void stop(BundleContext bundleContext) throws Exception {
            System.out.println("STOPPING DEMO");
        }

    }

MANIFEST.MF

<dependency>
    <groupId>org.osgi</groupId>
    <artifactId>osgi_R4_core</artifactId>
    <version>1.0</version>
    <scope>provided</scope>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>org.osgi</groupId>
    <artifactId>osgi_R4_compendium</artifactId>
    <version>1.0</version>
    <scope>provided</scope>
    <optional>true</optional>
</dependency>

给定自定义MANIFEST文件的路径

 Bundle-SymbolicName: osgi-example
 Bundle-Version: 1.0.0.SNAPSHOT
 Import-Package:com.psl.demo;version="1.0.0.SNAPSHOT",org.osgi.framework
 Export-Package: com.psl.demo;version="1.0.0.SNAPSHOT"
 Bundle-Activator: com.psl.demo.DemoActivator

现在每当我尝试使用 -

在karaf中安装应用程序时

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
                <archive>
                    <manifestFile>src/main/resources/META-INF/MANIFEST.MF</manifestFile>
                </archive>
            </configuration>
        </plugin>
    </plugins>
</build>

我得到错误 -

执行命令时出错：安装软件包时出错：无法安装 bundle mvn：com.psl.demo / osgi-example / 1.0.0.SNAPSHOT： org.osgi.framework.BundleException：无法缓存包： MVN：com.psl.demo / OSGi的例子/ 1.0.0.SNAPSHOT

任何解决方案？ TIA

Answer 1

此错误即将到来是因为捆绑软件安装命令中的Maven坐标不正确。以下是相同的语法：

karaf@root()> bundle:install mvn:<group-id>/<artifact-id>/<version>

请验证pom.xml的内容，并在上面的命令中输入相应的值。

从简单性的角度来看，您可以检查本地Maven存储库以查找包的位置，并相应地将值放在bundle install command上方。

在将应用程序部署到Apache Karaf时获取bundle异常

1 个答案: