但我无法看到任何文字。我已经使用了logger.info，但也无法在日志文件中看到它。我确信我在这里做了一些非常错误但由于我刚刚开始玩OSGi R6注释和Sling模型而无法定位。任何帮助表示赞赏。

Question

我正在尝试使用OSGi R6注释创建OSGi服务，然后将其注入Sling Model类中，如下所示：

@Entity
@Table(name = "movies")
@Data
public class MovieEntity {

    @Id
    @Column(unique = true, updatable = false)
    @GeneratedValue
    private Long id;

    @OneToMany(mappedBy = "movie", cascade = CascadeType.ALL, targetEntity= MovieInfo.class)
    private Set<MovieDescription> description;
}

OSGi配置界面如下所示：

   package com.aem.sites.models;

import javax.annotation.PostConstruct;
import javax.inject.Inject;

import org.apache.sling.api.resource.Resource;
import org.apache.sling.models.annotations.Model;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.aem.sites.services.WeatherService;

@Model(adaptables=Resource.class)
public class Banner {

    final static Logger logger = LoggerFactory.getLogger(Banner.class);

    @Inject
    private WeatherService weatherService;

    private String message;

        @PostConstruct
        public void init() {
            logger.info("##############################################################calling the init method");
            message = weatherService.getName();
        }

        public String getMessage() {
            logger.info("##############################################################inside the get message method");
            return message;
        }

}

，服务类如下所示：

    package com.aem.sites.interfaces;

import org.osgi.service.metatype.annotations.AttributeDefinition;
import org.osgi.service.metatype.annotations.AttributeType;
import org.osgi.service.metatype.annotations.ObjectClassDefinition;

@ObjectClassDefinition(name = "Configuration", description = "Configuration file")
public @interface Configuration {

     @AttributeDefinition(
                name = "String Property",
                description = "Sample String property",
                type = AttributeType.STRING
            )
     public String getText() default "It's a test";
}

最后是服务界面：

   package com.aem.sites.services.impl;


import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Deactivate;
import org.osgi.service.component.annotations.Modified;
import org.osgi.service.component.annotations.ConfigurationPolicy;
import org.osgi.service.metatype.annotations.Designate;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


import com.aem.sites.interfaces.Configuration;
import com.aem.sites.services.WeatherService;

@Component(service=WeatherService.class,
immediate=true,
configurationPid = "com.aem.sites.services.impl.WeatherServiceImpl",
configurationPolicy=ConfigurationPolicy.REQUIRE
)
@Designate(ocd = Configuration.class)
public class WeatherServiceImpl implements WeatherService{

    final static Logger logger =LoggerFactory.getLogger(WeatherServiceImpl.class);

    private Configuration config;

    private String name;

    @Activate
    @Modified
    protected final void activate(Configuration configuration) {
        logger.info("##############################################################calling activate method inside the weather service impl class");
        this.config = configuration;
        name = config.getText();
    }

    @Deactivate
    protected void deactivate() {
    }

    @Override
    public String getName() {
        logger.info("##############################################################calling get name method inside the weather service impl class");
        return name;
    }
}

我试图在HTL类中使用Sling Model Pojo，如下所示：

package com.aem.sites.services;

public interface WeatherService {

    public String getName();

}

但我无法看到任何文字。我已经使用了logger.info，但也无法在日志文件中看到它。我确信我在这里做了一些非常错误但由于我刚刚开始玩OSGi R6注释和Sling模型而无法定位。任何帮助表示赞赏。

添加Maven依赖项：

父pom.xml

<sly data-sly-use.banner="com.aem.sites.models.Banner">

    <div class="inner">
        <h2>${banner.message}</h2

    </div>

</sly>

核心pom.xml

<!-- <plugin>
                    <groupId>org.apache.felix</groupId>
                    <artifactId>maven-bundle-plugin</artifactId>
                    <version>2.5.3</version>
                </plugin>  -->             
                <plugin>
                      <groupId>org.apache.felix</groupId>
                      <artifactId>maven-bundle-plugin</artifactId>
                      <version>3.3.0</version>
                      <inherited>true</inherited>
                </plugin>

<dependency>
              <groupId>org.osgi</groupId>
              <artifactId>org.osgi.service.component.annotations</artifactId>
              <version>1.3.0</version>
               <scope>compile</scope>
            </dependency>

            <dependency>
              <groupId>org.osgi</groupId>
              <artifactId>org.osgi.annotation</artifactId>
              <version>6.0.0</version>
            </dependency>

            <dependency>
              <groupId>org.osgi</groupId>
              <artifactId>org.osgi.service.metatype.annotations</artifactId>
              <version>1.3.0</version>
            </dependency>

Answer 1

在服务impl中，您放置的service=WeatherServiceImpl.class不正确，它应该是服务接口名称。

所以，在WeatherServiceImpl中更改

 @Component(service=WeatherServiceImpl.class,

到

 @Component(service=WeatherService.class,

...

编辑：同样configurationPolicy=ConfigurationPolicy.REQUIRE表示至少应有一个配置才能使DS组件处于活动状态。（来自代码的配置不起作用）

所以你可以去系统/system/console/configMgr/com.aem.sites.services.impl.WeatherServiceImpl并输入一个值并保存。或者您可以将configurationPolicy设置为可选，并且您的代码无需配置即可运行。

Answer 2

为了使Sling模型可用，您必须正确配置if (typeof Object.assign != 'function') { Object.assign = function (target, varArgs) { 'use strict'; if (target == null) { throw new TypeError('Cannot convert undefined or null to object'); } var to = Object(target); for (var index = 1; index < arguments.length; index++) { var nextSource = arguments[index]; if (nextSource != null) { for (var nextKey in nextSource) { if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) { to[nextKey] = nextSource[nextKey]; } } } } return to; }; }的{{1}}部分，请参阅https://sling.apache.org/documentation/bundles/models.html#basic-usage

您可以使用Sling Models Web控制台检查模型是否正确显示：http://localhost:4502/system/console/status-slingmodels

AEM 6.3使用OSGi R6注释和吊索模型

但我无法看到任何文字。我已经使用了logger.info，但也无法在日志文件中看到它。我确信我在这里做了一些非常错误但由于我刚刚开始玩OSGi R6注释和Sling模型而无法定位。任何帮助表示赞赏。

2 个答案: