osgi中的bundle如何更改所依赖bundle的版本号

Question

id State       Bundle
0 ACTIVE      org.eclipse.osgi_3.5.2.R35x_v20100126
9 ACTIVE      org.eclipse.osgi.services_3.2.0.v20090520-1800
10 ACTIVE      javax.servlet_2.5.0.v200806031605
12 ACTIVE      org.eclipse.equinox.http.jetty_2.0.0.v20090520-1800
13 ACTIVE      org.eclipse.equinox.http.servlet_1.0.200.v20090520-1800
14 ACTIVE      org.mortbay.jetty.server_6.1.15.v200905151201
15 ACTIVE      org.apache.commons.logging_1.0.4.v200904062259
16 ACTIVE      org.mortbay.jetty.util_6.1.15.v200905182336
20 ACTIVE      org.eclipse.equinox.ds_1.1.1.R35x_v20090806
21 ACTIVE      org.eclipse.equinox.util_1.0.100.v20090520-1800
23 ACTIVE      org.springframework.osgi.core_1.2.1
24 ACTIVE      org.springframework.osgi.extender_1.2.1
25 ACTIVE      org.springframework.osgi.io_1.2.1
26 ACTIVE      org.springframework.aop_2.5.6.SEC01
27 ACTIVE      com.springsource.org.aopalliance_1.0.0
28 ACTIVE      org.springframework.beans_2.5.6.SEC01
29 ACTIVE      org.springframework.context_2.5.6.SEC01
30 ACTIVE      org.springframework.core_2.5.6.SEC01
31 ACTIVE      org.springframework.osgi.web_1.2.1
32 ACTIVE      org.springframework.web.servlet_2.5.6.SEC01
33 ACTIVE      org.springframework.osgi.catalina.osgi_5.5.23.SNAPSHOT
34 ACTIVE      org.springframework.osgi.catalina.start.osgi_1.0.0
35 ACTIVE      com.springsource.javax.servlet_2.4.0
36 ACTIVE      org.springframework.osgi.web.extender_1.2.1
37 ACTIVE      org.springframework.web_2.5.6.SEC01
42 ACTIVE      javax.servlet.jsp_2.0.0.v200806031607
46 ACTIVE      org.apache.commons.el_1.0.0.v200806031608
47 ACTIVE      org.apache.jasper_5.5.17.v200903231320
48 ACTIVE      org.springframework.bundle.spring_2.5.6.v201004171400
50 ACTIVE      utils_1.0.0
51 INSTALLED   Bootstrap_1.0.0
52 INSTALLED   org.springframework.jdbc_3.0.1.RELEASE-A
53 INSTALLED   org.springframework.transaction_3.0.1.RELEASE-A

osgi> start 52
org.osgi.framework.BundleException: The bundle could not be resolved. Reason: Missing Constraint: Import-Package: org.apache.commons.logging; version="[1.1.1,2.0.0)"
 at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1313)
 at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1297)
 at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:309)
 at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:280)
 at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:272)
 at org.eclipse.osgi.framework.internal.core.FrameworkCommandProvider._start(FrameworkCommandProvider.java:253)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.eclipse.osgi.framework.internal.core.FrameworkCommandInterpreter.execute(FrameworkCommandInterpreter.java:155)
 at org.eclipse.osgi.framework.internal.core.FrameworkConsole.docommand(FrameworkConsole.java:303)
 at org.eclipse.osgi.framework.internal.core.FrameworkConsole.console(FrameworkConsole.java:288)
 at org.eclipse.osgi.framework.internal.core.FrameworkConsole.run(FrameworkConsole.java:224)
 at java.lang.Thread.run(Thread.java:619)

osgi>

 

我电脑上的版本为org.apache.commons.logging_1.0.4.v200904062259.jar

在网上找了找，要将org.apache.commons.logging; version="[1.1.1,2.0.0)"
这个版本改为org.apache.commons.logging_1.0.4.v200904062259.jar

不知是不是这样的，有没有其它的办法可解决这个问题？

 

 

Answer 1

首先，你需要的不应该是改版本号，你只要在Eclipse Equinox里装入新版本的 Apache Commons Logging （版本大于1.1.1）就可以了。

另外，我必须提醒你Spring的OSGi项目(Spring DM)已经死了，据说一部分代码会Merge进Equinox，建议你引入Spring。在OSGi规范R4里，专门有IoC的框架规范，名字叫OSGi Blueprint。

开源的实现为Apche Aries http://aries.apache.org/ 我个人喜欢使用Apache Felix + Apache Aries，但我很确信Eclipse Equinox + Apache Aires也没问题。

OSGi的优势就在于有完美且高效的底层框架设计，你在设计你的项目时应当仔细的考虑如何利用这些优势。