摇篮说“时，MyPortlet是不能分配给指定的服务com.liferay.portal.kernel.model.Portlet”
我得到这个摇篮错误：摇篮说“时，MyPortlet是不能分配给指定的服务com.liferay.portal.kernel.model.Portlet”
> Task :jar
[Class my.MyPortlet is not assignable to specified service com.liferay.portal.kernel.model.Portlet]
...这个极简的Liferay 7门户（简化的the official documentation）：
package my;
import com.liferay.portal.kernel.model.Portlet;
import com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet;
import org.osgi.service.component.annotations.Component;
@Component(
service = Portlet.class
)
public class MyPortlet extends MVCPortlet {
}
在调试模式下运行摇篮不给我更多的线索：
[aQute.bnd.osgi.Builder] parseClassFile(): path=javax.portlet.PortletRequest resource=:/home/nico/.gradle/caches/modules-2/files-2.1/javax.portlet/portlet-api/2.0/1cd72f2a37fcf8ab9893a9468d7ba71c85fe2653/portlet-api-2.0.jar(javax/portlet/PortletRequest.class):
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin [email protected]
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin com.lif[email protected]4e811a19
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] parseClassFile(): path=my/MyPortlet.class resource=/home/nico/my/build/classes/java/main/my/MyPortlet.class
[aQute.bnd.osgi.Builder] begin [email protected]
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin [email protected]
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin [email protected]
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin [email protected]
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin [email protected]45
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] parseClassFile(): path=my/MyPortlet.class resource=/home/nico/my/build/classes/java/main/my/MyPortlet.class
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.jsp.JspAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.npm.NpmAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.resource.bundle.ResourceBundleLoaderAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.sass.SassAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.service.ServiceAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.social.SocialAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin aQute.lib.spring.SpringComponent
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.spring.SpringDependencyAnalyzerPlugin
[org.dm.gradle.plugins.bundle.JarBuilder] [Class my.MyPortlet is not assignable to specified service com.liferay.portal.kernel.model.Portlet]
咕gle只有9个结果“不能指定给指定的服务”。
我在做什么错？
与源导入：
import com.liferay.portal.kernel.model.Portlet;
然后：
@Component( service = Portlet.class )
你声称你的MyPortlet类实现com.liferay.portal.kernel.model.Portlet。但事实并非如此。 com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet执行javax.portlet.Portlet。
更改您的源输入从com.liferay.portal.kernel.model.Portlet更改为javax.portlet.Portlet。
aQute.bnd.component.AnnotationReader试图解析service = Portlet.class部分，问题是aQute.bnd.osgi.Analyzer.assignable（MyPortlet，com.liferay.portal.kernel.model.Portlet）返回false。
让我们跟随的类层次结构：
的问题portlet实现
↓
com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet
↓
com.liferay.portal.kernel.portlet.LiferayPortlet
↓
javax.portlet.GenericPortlet
↓
javax.portlet.Portlet
这提示我们导入语句是错误的。它应该是：
import javax.portlet.Portlet;
...而不是：
import com.liferay.portal.kernel.model.Portlet;
将其固定后，构建成功。
谢谢，我刚刚发现它，并在几分钟前发布了一个关于它的答案。 –