OSGI org.slf4j.impl依赖

时间:2015-07-14 12:02:56

标签: java maven osgi

我是OSGI的新手(对不起)并且在尝试部署我的软件包和相关依赖项时遇到了一些问题。

这是我的POM:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.felix.test</groupId>
    <artifactId>com.felix.test</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>bundle</packaging>

    <dependencies>
        <dependency>
            <groupId>org.apache.felix</groupId>
            <artifactId>org.osgi.core</artifactId>
            <version>1.0.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.felix</groupId>
            <artifactId>org.apache.felix.scr.annotations</artifactId>
            <version>1.9.6</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>net.sf.ehcache</groupId>
            <artifactId>ehcache</artifactId>
            <version>2.10.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.4</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.5</source>
                    <target>1.5</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.felix</groupId>
                <artifactId>maven-bundle-plugin</artifactId>
                <version>2.5.4</version>
                <extensions>true</extensions>
                <configuration>
                    <instructions>
                        <Export-Package>
                            com.felix.test.search
                        </Export-Package>
                        <Bundle-SymbolicName>
                            ${project.artifactId}
                        </Bundle-SymbolicName>
                        <Bundle-Activator>
                            com.felix.test.Activator
                        </Bundle-Activator>
                    </instructions>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

然后我使用Maven命令捆绑它:

  

mvn org.apache.felix:maven-bundle-plugin:bundleall

这是成功的,并生成我的捆绑包以及3个依赖包:

  • net.sf.ehcache_2.10.0.jar
  • org.apache.commons.lang3_3.4.0.jar
  • slf4j.api_1.7.7.jar

这似乎没关系,我可以安装并启动前两个但是当我尝试启动slf4j时,我得到以下异常:

  

org.osgi.framework.BundleException:无法解析slf4j.api [25](R   25.0):缺少要求[slf4j.api [25](R 25.0)] osgi.wiring.package;   (&amp;(osgi.wiring.package = org.slf4j.impl)(版本&gt; = 1.6.0))未解决   要求:[[slf4j.api [25](R 25.0)] osgi.wiring.package;   (及(osgi.wiring.package = org.slf4j.impl)(版本&GT; = 1.6.0))]

我很确定我错过了一些非常简单的东西,但不能把它固定下来。任何帮助将不胜感激!

1 个答案:

答案 0 :(得分:0)

我有同样的错误消息,并发现它是由于糟糕的捆绑插件配置(如@Christian_Schneider所述)。

我的情况

所以我在Karaf上部署时大致有这个错误消息:

  

缺少要求......未解决的要求:... osgi.wiring.package = org.slf4j.impl

我的模块 pom.xml 看起来像这样:

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j_version}</version>
    <scope>provided</scope>
</dependency>

...

<plugin>
    <groupId>org.apache.felix</groupId>
    <artifactId>maven-bundle-plugin</artifactId>
    <configuration>
        <instructions>
            <Private-Package>*</Private-Package>
        </instructions>
    </configuration>
</plugin>

解决方案

来自karaf社区的@jbonofre

我只是用<Private-Package>*</Private-Package>重新<Export-Package></Export-Package>来获取:

<plugin>
    <groupId>org.apache.felix</groupId>
    <artifactId>maven-bundle-plugin</artifactId>
    <configuration>
        <instructions>
            <Export-Package></Export-Package>
        </instructions>
    </configuration>
</plugin>

因此,我的捆绑 manifest.mf org.slf4j.impl的导入消失了,只留下导入org.slf4j。这是由PAX Logging提供的,默认安装在karaf上。