小编mit*_*ast的帖子

我有通过maven构建rpm的java项目.必需创建noarch包,但我看到具体的拱.我在MacOsX上通过macports安装rpm(4.4.9或5.2.0),并从maven rpm插件运行命令:

sudo rpmbuild -bb -v --buildroot /path/to/project/buildroot --target noarch java-search-qt.spec
Building target platforms: noarch
Executing(%install): /bin/bash -e /tmp/rpm-tmp.69257
+ umask 022
+ cd /opt/local/src/macports/BUILD
+ /bin/rm -rf /path/to/project/target/rpm/project/buildroot
+ /bin/rm -rf /path/to/project/target/rpm/project/buildroot
+ '[' -e /path/to/project/target/rpm/project/buildroot ']'
+ mv /path/to/project/target/rpm/project/tmp-buildroot /path/to/project/target/rpm/project/buildroot
+ /opt/local/lib/rpm/brp-compress
+ /opt/local/lib/rpm/brp-strip
+ /opt/local/lib/rpm/brp-strip-static-archive
+ /opt/local/lib/rpm/brp-strip-comment-note
+ /opt/local/lib/rpm/brp-nobuildrootpath
Processing files: java-search-qt-1.0.17-1
Finding  Provides: /opt/local/lib/rpm/find-provides
Finding  Requires: /opt/local/lib/rpm/find-requires
Requires(interp): /bin/bash /bin/bash /bin/bash /bin/bash
Requires(verify): /bin/bash
Requires(pre): /bin/bash
Requires(post): /bin/bash
Requires(postun): /bin/bash
Checking for unpackaged file(s): /opt/local/lib/rpm/check-files /path/to/project/target/rpm/project/buildroot …

我有懒惰初始化bean的代码:

@Component @Lazy
class Resource {...}

@Component @Lazy @CustomProcessor
class ResourceProcessorFoo{
    @Autowired
    public ResourceProcessor(Resource resource) {...}
}
@Component @Lazy @CustomProcessor
class ResourceProcessorBar{
    @Autowired
    public ResourceProcessor(Resource resource) {...}
}

初始化应用程序上下文后,没有此bean的实例.当bean资源由应用程序上下文创建时(例如,applicationContext.getBean(Resource.class)),没有@CustomProcessor实例标记bean.

在创建Resource bean时,需要使用@CustomProcessor创建bean.怎么做？

更新:找到一个丑陋的解决方案 - 使用空的自动装配的setter:

@Autowired
public void setProcessors(List<ResourceProcessor> processor){}

Bean BeanPostProcessor的另一个丑陋的解决方案(太神奇了!)

@Component
class CustomProcessor implements BeanPostProcessor{
    public postProcessBeforeInitialization(Object bean, String beanName) {
        if(bean instanceof Resource){
            applicationContext.getBeansWithAnnotation(CustomProcessor.class);
        }
    }
}

也许有更优雅的方式？