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我一直在试图解决这个问题好几天了，但我似乎卡住了某种方式。我想开发一个OSGi包，并且我的实现需要一个外部库（具有更多的依赖关系）。情况如下：我的项目使用gradle，并且我有一个简单的代码片段进行编译，但是在运行时崩溃（我使用apache felix），给我一个抱怨未满足的依赖的异常。但是所有的库都存在于jar包中，我将它们添加到classpath中。缺少的软件包org.ethereum.facade被列在Private-Packages中。 我读了很多类似问题的问题，但没有一个提议的解决方案似乎解决了我的问题。将外部库集成到OSGI
我张贴我的gradle.build文件
// ETHEREUM NODE
configurations.create('embed')
repositories {
mavenLocal()
mavenCentral()
maven {
url "http://dl.bintray.com/ethereum/maven"
}
}
dependencies {
// This will compile the openMuc Framework and place the result into the build classpath:
compile project(':openmuc-core-api')
// This will place the etherum libraries into the classpath
compile ("org.ethereum:ethereumj-core:latest.release")
embed ("org.ethereum:ethereumj-core:latest.release")
}
jar {
manifest {
name = 'OpenMUC App - EthereumNode'
instruction 'Bundle-ClassPath', 'lib/ethereumj-core-1.4.2-RELEASE.jar,.'
}
into('lib') {
from configurations.embed
}
}
产生的罐子：
[MANIFEST openmuc-app-ethereumNode-0.16.0.jar]
Bnd-LastModified 1490003658351
Bundle-ClassPath lib/ethereumj-core-1.4.2-RELEASE.jar,.
Bundle-ManifestVersion 2
Bundle-Name OpenMUC App - EthereumNode
Bundle-SymbolicName org.openmuc.framework.openmuc-app-ethereumNode
Bundle-Version 0.16.0
Created-By 1.8.0_25 (Oracle Corporation)
Export-Package org.openmuc.framework.app.ethereumNode;version="0.16.0";uses:="javax.xml.bind,org.osgi.service.component"
Import-Package javax.xml.bind,org.osgi.service.component;version="[1.2,2)",org.slf4j;version="[1.7,2)",org.ethereum.facade
Manifest-Version 1.0
Private-Package genesis,org.ethereum,org.ethereum.cli,org.ethereum.config,org.ethereum.config.blockchain,org.ethereum.config.net,org.ethereum.core,org.ethereum.core.genesis,org.ethereum.crypto,org.ethereum.crypto.cryptohash,org.ethereum.crypto.jce,org.ethereum.datasource,org.ethereum.datasource.inmem,org.ethereum.datasource.leveldb,org.ethereum.datasource.mapdb,org.ethereum.db,org.ethereum.db.index,org.ethereum.facade,org.ethereum.json,org.ethereum.jsonrpc,org.ethereum.listener,org.ethereum.manager,org.ethereum.mine,org.ethereum.net,org.ethereum.net.client,org.ethereum.net.dht,org.ethereum.net.eth,org.ethereum.net.eth.handler,org.ethereum.net.eth.message,org.ethereum.net.message,org.ethereum.net.p2p,org.ethereum.net.rlpx,org.ethereum.net.rlpx.discover,org.ethereum.net.rlpx.discover.table,org.ethereum.net.server,org.ethereum.net.shh,org.ethereum.net.submit,org.ethereum.net.swarm,org.ethereum.net.swarm.bzz,org.ethereum.samples,org.ethereum.solidity,org.ethereum.solidity.compiler,org.ethereum.sync,org.ethereum.trie,org.ethereum.util,org.ethereum.util.blockchain,org.ethereum.validator,org.ethereum.vm,org.ethereum.vm.program,org.ethereum.vm.program.invoke,org.ethereum.vm.program.listener,org.ethereum.vm.trace,lib
Require-Capability osgi.ee;filter:="(&(osgi.ee=JavaSE)(version=1.7))"
Service-Component OSGI-INF/org.openmuc.framework.app.ethereumNode.EthereumNode.xml
Tool Bnd-3.0.0.201509101326
[IMPEXP]
Import-Package
javax.xml.bind
org.ethereum.facade
org.osgi.service.component {version=[1.2,2)}
org.slf4j {version=[1.7,2)}
Export-Package
org.openmuc.framework.app.ethereumNode {version=0.16.0}
[USES]
org.openmuc.framework.app.ethereumNode java.lang
javax.xml.bind
org.ethereum.facade
org.osgi.service.component
org.slf4j
[USEDBY]
java.lang org.openmuc.framework.app.ethereumNode
javax.xml.bind org.openmuc.framework.app.ethereumNode
org.ethereum.facade org.openmuc.framework.app.ethereumNode
org.osgi.service.component org.openmuc.framework.app.ethereumNode
org.slf4j org.openmuc.framework.app.ethereumNode
[COMPONENTS]
OSGI-INF/org.openmuc.framework.app.ethereumNode.EthereumNode.xml
<?xml version="1.0" encoding="UTF-8"?>
<component name="org.openmuc.framework.app.ethereumNode.EthereumNode">
<implementation class="org.openmuc.framework.app.ethereumNode.EthereumNode"/>
</component>
[LIST]
META-INF
MANIFEST.MF extra='\uFFFD\uFFFD\u0000\u0000'
OSGI-INF
org.openmuc.framework.app.ethereumNode.EthereumNode.xml
lib
aopalliance-1.0.jar
commons-codec-1.10.jar
commons-collections4-4.0.jar
commons-lang3-3.4.jar
commons-logging-1.2.jar
config-1.2.1.jar
core-1.53.0.0.jar
ethereumj-core-1.4.2-RELEASE.jar
guava-16.0.1.jar
jackson-annotations-2.5.0.jar
jackson-core-2.5.1.jar
jackson-core-asl-1.9.13.jar
jackson-databind-2.5.1.jar
jackson-mapper-asl-1.9.13.jar
java-util-1.8.0.jar
javassist-3.15.0-GA.jar
json-io-2.4.1.jar
json-simple-1.1.1.jar
jsr305-3.0.0.jar
leveldb-0.7.jar
leveldb-api-0.7.jar
leveldbjni-all-1.18.3.jar
logback-classic-1.1.7.jar
logback-core-1.1.7.jar
mapdb-2.0-beta12.jar
netty-all-4.0.30.Final.jar
prov-1.53.0.0.jar
slf4j-api-1.7.20.jar
solcJ-all-0.4.8.jar
spring-aop-4.2.0.RELEASE.jar
spring-beans-4.2.0.RELEASE.jar
spring-context-4.2.0.RELEASE.jar
spring-core-4.2.0.RELEASE.jar
spring-expression-4.2.0.RELEASE.jar
spring-jdbc-4.2.0.RELEASE.jar
spring-orm-4.2.0.RELEASE.jar
spring-tx-4.2.0.RELEASE.jar
org
org/openmuc
org/openmuc/framework
org/openmuc/framework/app
org/openmuc/framework/app/ethereumNode
EthereumNode.class
的例外，我遇到当束装：
ERROR: Bundle org.openmuc.framework.openmuc-app-ethereumNode [3] Error starting file:/Volumes/UserData/Documents/FH/MasterThesis_MatthiasPosch/java/openmuc/framework/bundle/openmuc-app-ethereumNode-0.16.0.jar (org.osgi.framework.BundleException: Unable to resolve org.openmuc.framework.openmuc-app-ethereumNode [3](R 3.0): missing requirement [org.openmuc.framework.openmuc-app-ethereumNode [3](R 3.0)] osgi.wiring.package; (osgi.wiring.package=org.ethereum.facade) Unresolved requirements: [[org.openmuc.framework.openmuc-app-ethereumNode [3](R 3.0)] osgi.wiring.package; (osgi.wiring.package=org.ethereum.facade)])
org.osgi.framework.BundleException: Unable to resolve org.openmuc.framework.openmuc-app-ethereumNode [3](R 3.0): missing requirement [org.openmuc.framework.openmuc-app-ethereumNode [3](R 3.0)] osgi.wiring.package; (osgi.wiring.package=org.ethereum.facade) Unresolved requirements: [[org.openmuc.framework.openmuc-app-ethereumNode [3](R 3.0)] osgi.wiring.package; (osgi.wiring.package=org.ethereum.facade)]
at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:4112)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2118)
at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1372)
at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
at java.lang.Thread.run(Thread.java:745)
如此看来所有的库都在lib文件夹中，但仍然无法工作。我试图玩弄代码，但是对包含的库（例如spring）的任何引用都会导致类似的异常。为什么？
如果你需要更多的外部依赖的最好办法是建立一个目标平台包含这些依赖... – khmarbaise
我不知道，你是什么目标平台是什么意思？ – madsonic