在 Eclipse 中运行一个非常简单的 Weld SE 项目
我一直在我的 Web 应用程序中使用 Seam 2（也开始研究 Java EE 6），几天前我发现 Seam 的 CDI 可以在带有 Weld 的 SE 应用程序中使用。根据 Weld 的文档页面 Weld SE< /a> 设置很简单。因此，我尝试使用单个类 HelloWeld、weld-se.jar 和 log4j jar 设置一个 Eclipse 项目。
@Singleton
public class HelloWeld
{
public void printHello(@Observes ContainerInitialized event, @Parameters List<String> parameters)
{
System.out.println("Hello Weld!");
}
}
我创建了一个新的 Java 应用程序运行配置，并将 org.jboss.weld.environment.se.StartMain 指定为主类。当我运行该项目时，我毫无意外地发现 HelloWeld 从未被调用过。我得到的只是一些日志条目，表明 Weld 正确启动：
11:54:39,397 INFO [weld.Version] WELD-000900 1.0.1 (Final)
11:54:39,428 INFO [weld.Bootstrap] WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously.
11:54:39,944 WARN [model.InterceptionTypeRegistry] Class 'javax.ejb.PostActivate' not found, interception based on it is not enabled
11:54:39,944 WARN [model.InterceptionTypeRegistry] Class 'javax.ejb.PrePassivate' not found, interception based on it is not enabled
那么我错过了什么？
I've been using Seam 2 (also started looking into Java EE 6) in my web apps and a couple of days ago I found out that Seam's CDI can be leveraged in an SE application with Weld. According to Weld's Documentation page for Weld SE the setup is trivial. So I tried to setup an Eclipse project with a single class HelloWeld, weld-se.jar and the log4j jars.
@Singleton
public class HelloWeld
{
public void printHello(@Observes ContainerInitialized event, @Parameters List<String> parameters)
{
System.out.println("Hello Weld!");
}
}
I created a new Java Application Run Configuration and indicated org.jboss.weld.environment.se.StartMain as the main class. When I ran the project I found out, without any surprise what-so-ever, that HelloWeld was never called. All I got was a few log entries as an indication that Weld booted correctly:
11:54:39,397 INFO [weld.Version] WELD-000900 1.0.1 (Final)
11:54:39,428 INFO [weld.Bootstrap] WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously.
11:54:39,944 WARN [model.InterceptionTypeRegistry] Class 'javax.ejb.PostActivate' not found, interception based on it is not enabled
11:54:39,944 WARN [model.InterceptionTypeRegistry] Class 'javax.ejb.PrePassivate' not found, interception based on it is not enabled
So what am I missing?
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您需要将其设为 Bean 存档。将空 META-INF/beans.xml 添加到类路径中。
You need to make it a bean archive. Add an empty META-INF/beans.xml to your classpath.