Question

使用Arquillian JUnit（版本1.1.1和4.11）来设置嵌入JDK 1.7.25的CDI（Weld 1.1.13.Final上的1.0.0.CR7）....

获得以下课程：

public class Receiver {
  private String message;

  public void catching(@Observes DummyEvent event) {
    System.out.println(String.format("message [%s], hash [%d]", event.getMessage(), hashCode()));
    this.message = event.getMessage();
  }

  public String getMessage() {
    return this.message;
  }
}

public class Sender {
  @Inject @Any
  Event<DummyEvent> e;

  public void fire(String message) {
    System.out.println(String.format("fire message [%s], hash [%d]", message, hashCode()));

    DummyEvent de = new DummyEvent;
    de.setMessage(message);
    e.fire(de);
  }
}

@RunWith(Arquillian.class)
public class Example {
  @Deployment
  public static JavaArchive createDeployment() {
    return ShrinkWrap.create(JavaArchive.class).addClasses(Example .class, Receiver.class, Sender.class)
         .addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
  }

  @Inject
  Receiver receiver;

  @Inject
  Sender sender;

  @Test
  public void dummy() {
    System.out.println(String.format("sender hash [%d]", sender.hashCode()));
    sender.fire("Hello from me");

    System.out.println(String.format("message [%s], receiver hash: [%d]",
    receiver.getMessage(), receiver.hashCode()));
  }
}

打印的内容如下：

sender hash [785714873]
firing event [value: Hello from me], hash [785714873]
message [Hello from me], hash [632925108]
message [null], receiver hash: [1085786565]

我没有得到的是接收器哈希码不同的原因，并且事件未传播到示例JUnit中注入的Receiver bean。而是将事件发送到某个OTHER接收器bean。

这是否与范围有关（应该是默认的@Dependent）？

Answer 1

看起来Receiver和Sender没有定义范围。结果，他们将@Dependent作为他们的范围。当您使用@Dependent时，会在每个注入点注入一个新实例。

CDI在Arquillian观察，事件没有传播到注入的bean

1 个答案: