Liferay 6.2 + Spring @Autowired无法正常运行

Chirdeep Tomar 发表于 Dev

Chirdeep Take

我将Spring 4.0.6和Liferay 6.2一起使用。Spring不能将自动装配的组件注入到钩子中，对象为null。我还尝试了Liferay附带的3.1版。相同的代码在portlet中有效，但在钩子中无效。

ActivityEventPublisher.java中的private ApplicationEventPublisher发布者为null。

web.xml

<?xml version="1.0"?>

<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-         app_2_4.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/applicationContext.xml</param-value>
</context-param>

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<listener>
<listener-class>com.liferay.portal.kernel.servlet.SecurePluginContextListener</listener-  class>
</listener>
<listener>
<listener-class>com.liferay.portal.kernel.servlet.PortletContextListener</listener-class>
</listener>

<servlet>
<servlet-name>ViewRendererServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.ViewRendererServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ViewRendererServlet</servlet-name>
<url-pattern>/WEB-INF/servlet/view</url-pattern>
</servlet-mapping>
</web-app>

ActivityEventPublisher.java

import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.stereotype.Component;

import connect.activity.solr.document.ActivityData;

@Component
public class ActivityEventPublisher implements ApplicationEventPublisherAware {

private ApplicationEventPublisher publisher;

@Override
public void setApplicationEventPublisher(ApplicationEventPublisher publisher) {
this.publisher = publisher;
}

public ApplicationEventPublisher getPublisher() {
return publisher;
}

public void setPublisher(ApplicationEventPublisher publisher) {
this.publisher = publisher;
}

public void publish(ActivityData data) {
ActivityEvent event = new ActivityEvent(this);
event.setActivityData(data);
this.publisher.publishEvent(event);
}
}

任何帮助都感激不尽。

谢谢

弗朗西斯科·哈维尔·巴雷纳

不幸的是，Liferay在挂钩，包装或启动操作中不允许使用自动装配机制。

您可以实现一个ApplicationContextProvider，它是如此简单和有用：

@Component("applicationContextProvider")
public class ApplicationContextProvider implements ApplicationContextAware {
    private static ApplicationContext ctx = null;

    public static ApplicationContext getApplicationContext() {
        return ctx;
    }

    @Override
    public void setApplicationContext(ApplicationContext ac) throws BeansException {
        ctx = ac;
    }
}

在挂钩中使用的示例如下：

public class PostLoginActionHook extends Action {

// That code "replaces" @Autowired annotation
private final UserProxyService userProxyService = (UserProxyService) ApplicationContextProvider.
        getApplicationContext().getBean(UserProxyService.class);


@Override
public void run(HttpServletRequest request, HttpServletResponse response) throws ActionException {
        UserVO myCustomUser = userProxyService.getCustomUserByLiferayUser(user.getUserId());
        {...}
}

希望能帮助到你！

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