我如何@Inject CDI @ApplicationScoped bean到@RequestScoped JAX-RS bean？

Question

我已將@ApplicationScoped CDI注釋添加到一個簡單的bean：

@ApplicationScoped
public class History {

然后嘗試將@Inject轉換為JAX-RS（resteasy）bean：

@RequestScoped
@Path("/history")
public class HistoryAPI {

@Inject
private History history;

但歷史仍然無效。 我在WEB-INF中有一個beans.xml文件。 我已經嘗試了很多關於這個主題的變化，但是雖然app服務器（Wildfly）承認它是從CDI開始我無法讓注入工作。 我缺少什么想法？謝謝。

ETA：我嘗試​​過一個空的beans.xml和幾個變種，最新的是：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:weld="http://jboss.org/schema/weld/beans"
       xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://docs.jboss.org/cdi/beans_1_0.xsd
                           http://jboss.org/schema/weld/beans http://jboss.org/schema/weld/beans_1_1.xsd">
</beans>

Answer 1

嘗試從HistoryAPI中刪除@RequestScoped。

wildfly-quickstart項目中有一個很好的JAX-RS示例

我在WF8 beta1上試過它，一切都很好地注入了。

Answer 2

奇怪......我覺得你的代碼應該有用......

我在GitHub上創建了這個問題的一個例子（使用Wildly 8.2.0.Final和Glassfish 4.1測試）： https ： //github.com/StefanHeimberg/stackoverflow-20150993

我沒有web.xml和沒有beans.xml完成​​所有這些

測試用：

瀏覽器中3次F5到網址http：// localhost：8080 / mavenproject1-1.0-SNAPSHOT / webresources / history

輸出：

20:32:12,955 SEVERE [com.mycompany.mavenproject1.HistoryAPI] (default task-2) HistoryAPI.init() called
20:32:12,956 SEVERE [com.mycompany.mavenproject1.HistoryAPI] (default task-2) HistoryAPI.doSomething() called
20:32:12,956 SEVERE [com.mycompany.mavenproject1.History] (default task-2)  ===> History.init() called
20:32:12,956 SEVERE [com.mycompany.mavenproject1.History] (default task-2)  ===> History.doSomething() called 
20:36:09,830 SEVERE [com.mycompany.mavenproject1.HistoryAPI] (default task-3) HistoryAPI.init() called
20:36:09,831 SEVERE [com.mycompany.mavenproject1.HistoryAPI] (default task-3) HistoryAPI.doSomething() called
20:36:09,831 SEVERE [com.mycompany.mavenproject1.History] (default task-3)  ===> History.doSomething() called 
20:36:10,549 SEVERE [com.mycompany.mavenproject1.HistoryAPI] (default task-4) HistoryAPI.init() called
20:36:10,549 SEVERE [com.mycompany.mavenproject1.HistoryAPI] (default task-4) HistoryAPI.doSomething() called
20:36:10,549 SEVERE [com.mycompany.mavenproject1.History] (default task-4)  ===> History.doSomething() called