Java 将bean注入EJB,EJB已在另一个模块WAR中实现

Java 将bean注入EJB,EJB已在另一个模块WAR中实现,java,jakarta-ee,ejb,cdi,Java,Jakarta Ee,Ejb,Cdi,我的结构如下: EAR | | - EJB | - WAR (servlet) | - JAR (api) JAR包含几个接口和限定符。这些接口和限定符将用于其他模块——WAR和EJB WAR将JAR作为一个依赖项,一个类实现一个特定的接口。该类用限定符进行注释。接口和限定符都来自JAR EJB将JAR作为依赖项,我希望它能够注入WAR实现的bean 但它不起作用。错误崩溃: 原因:org.jboss.weld.exceptions.WeldException:weld-001602: 无法为

我的结构如下:

EAR
|
| - EJB
| - WAR (servlet)
| - JAR (api)
JAR包含几个接口和限定符。这些接口和限定符将用于其他模块——WAR和EJB

WAR将JAR作为一个依赖项,一个类实现一个特定的接口。该类用限定符进行注释。接口和限定符都来自JAR

EJB将JAR作为依赖项,我希望它能够注入WAR实现的bean

但它不起作用。错误崩溃:

原因:org.jboss.weld.exceptions.WeldException:weld-001602: 无法为创建限定符实例模型 @com.api.QualifierWithParams()

同样,@com.api.QualifierWithParams()来自已导入的JAR

我假设运行时不知道模块之间的CDIBean

现在我这么做的全部原因是因为EJB可以是@Singleton,它将被任何数量的servlet实例访问。像缓存一样使用它。我想我可以复制一些代码,但不是。有办法吗

编辑-我花了一段时间来删除代码,但它是:

/*
EJB:

In maven this will have in its pom.xml's dependencies a dependency element for the JAR below.

*/

@Local
public interface EJBInterface {
    public String someBusinessMethod (String s);
}

@Singleton(name="EBJImplementation")
@javax.ejb.Startup
@Local(EJBInterface.class)
public class EBJImplementation implements EJBInterface{

    @javax.inject.Inject @com.api.QualifierWithParams(type=SomeType.PRIMARY, someQualifierParameter=15) InjectableBeanInterface b;

    @Override
    public String someBusinessMethod (String s){
        return s + " with param value of: " + Integer.parseInt(b.getParam());
    }

    /*
    @PostConstruct
    private void setUp(){

    }
    */
}

////////////////////////////////////////////

JAR:

package com.api;
public interface InjectableBeanInterface {

    public int getParam();
}

package com.api;
@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER})
public @interface QualifierWithParams {
    SomeType type() default SomeType.PRIMARY; //just an enum to help  reduce annotation explosion

    @Nonbinding int someQualifierParameter() default 0;
}


////////////////////////////////////////////

/*
WAR:

Like the EJB, it will include JAR file as a dependency

*/

public class BeanImpl implements com.api.InjectableBeanInterface{

    private int someQualifierParameter;

    public BeanImpl (int p){
        someQualifierParameter = p;
    }

    @Override
    public int getParam(){return someQualifierParameter == null ? -1 : someQualifierParameter;}
}


public class InjectableBeanFactory {

    @Produces
    @com.api.QualifierWithParams(type=SomeType.PRIMARY)
    public com.api.InjectableBeanInterface productionFact(InjectionPoint ip){
        //get the parameter from the qualifier and create new instance
        Annotated a = ip.getAnnotated();
        com.api.QualifierWithParams qualifierParams = a.getAnnotation(com.api.QualifierWithParams.class);

        int tempParam = qualifierParams.someQualifierParameter();
        return new BeanImpl(tempParam);
    }
}

//Servlet. Configuration is done in the web.xml . This is the entry point of the application.
public class Main extends HttpServlet{

    private @EJB EJBInterface b;

    @Override
    protected void doGet(HttpServletRequest rq, HttpServletResponse rs) throws ServletException, IOException {

        Logger.getLogger("main-logger").log(Level.INFO, b.someBusinessMethod("called from servlet"));

        //...
    }
}
堆栈跟踪:

Failed to start service jboss.deployment.unit."test.ear".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."test".WeldStartService: Failed to start service
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.jboss.weld.exceptions.WeldException: WELD-001602: Cannot create qualifier instance model for @com.api.QualifierWithParams(type=PRIMARY, someQualifierParameter=15)
        at com.api.QualifierWithParams.type(QualifierWithParams.java:0)
  StackTrace:
        at org.jboss.weld.resolution.QualifierInstance.createValues(QualifierInstance.java:139)
        at org.jboss.weld.resolution.QualifierInstance.of(QualifierInstance.java:96)
        at org.jboss.weld.resolution.ResolvableBuilder.addQualifier(ResolvableBuilder.java:147)
        at org.jboss.weld.resolution.ResolvableBuilder.addQualifiers(ResolvableBuilder.java:197)
        at org.jboss.weld.resolution.ResolvableBuilder.<init>(ResolvableBuilder.java:83)
        at org.jboss.weld.manager.BeanManagerImpl.getBeans(BeanManagerImpl.java:567)
        at org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:357)
        at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:281)
        at org.jboss.weld.bootstrap.Validator.validateGeneralBean(Validator.java:134)
        at org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:155)
        at org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:518)
        at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:68)
        at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:66)
        at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:63)
        at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:56)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:748)
        at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.jboss.weld.resolution.QualifierInstance.createValues(QualifierInstance.java:137)
        ... 19 more
无法启动服务jboss.deployment.unit.“test.ear”。服务jboss.deployment.unit.“test”中的WeldStartService:org.jboss.msc.service.StartException。WeldStartService:无法启动服务
位于org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904)
位于java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
位于java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
运行(Thread.java:748)
原因:org.jboss.weld.exceptions.WeldException:weld-001602:无法为@com.api.QualifierWithParams(type=PRIMARY,someQualifierParameter=15)创建限定符实例模型
位于com.api.QualifierWithParams.type(QualifierWithParams.java:0)
堆栈跟踪:
位于org.jboss.weld.resolution.QualifierInstance.createValues(QualifierInstance.java:139)
位于org.jboss.weld.resolution.QualifierInstance.of(QualifierInstance.java:96)
位于org.jboss.weld.resolution.ResolvableBuilder.addQualifier(ResolvableBuilder.java:147)
位于org.jboss.weld.resolution.ResolvableBuilder.addQualifiers(ResolvableBuilder.java:197)
位于org.jboss.weld.resolution.ResolvableBuilder(ResolvableBuilder.java:83)
位于org.jboss.weld.manager.BeanManagerImpl.getBeans(BeanManagerImpl.java:567)
位于org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:357)
在org.jboss.weld.bootstrap.Validator.validateInjectionPoint上(Validator.java:281)
位于org.jboss.weld.bootstrap.Validator.validateGeneralBean(Validator.java:134)
位于org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:155)
位于org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:518)
位于org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:68)
位于org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:66)
在org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:63)
在org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:56)
在java.util.concurrent.FutureTask.run(FutureTask.java:266)处
位于java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
位于java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
运行(Thread.java:748)
位于org.jboss.threads.JBossThread.run(JBossThread.java:320)
原因:java.lang.IllegalArgumentException:对象不是声明类的实例
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)中
位于java.lang.reflect.Method.invoke(Method.java:498)
位于org.jboss.weld.resolution.QualifierInstance.createValues(QualifierInstance.java:137)
... 还有19个

进一步的测试表明,如果我将其作为实例注入,它将工作:

@Inject @Any javax.enterprise.inject.Instance<InjectableBeanInterface> d;
必须手动实现限定符(QualifierWithParams):

public class QualifierWithParamsIMPL extends AnnotationLiteral<QualifierWithParams> implements QualifierWithParams {

    private final SomeType type;
    private final int someQualifierParameter;

    public CMSdbConnectionIMPL(SomeType type, int someQualifierParameter){
        this.type = type;
        this.someQualifierParameter = someQualifierParameter;
    }

    @Override
    public String type() {return type;}
    @Override
    public String someQualifierParameter() {return someQualifierParameter;}
}
将为空


所以我想我会研究其他的方法。我可能会使用@ApplicationScoped CDIBean来代替@Singleton EJB。

show codeplease@NkosieMaphumuloOP已用代码编辑。您引用的异常是否有由…引起的后续
?如果是,请添加完整的堆栈trace@SteveC是的,有:“原因:java.lang.IllegalArgumentException:对象不是声明类的实例”。使用堆栈跟踪更新了OP。基本上它说它找不到对象,因为它是另一个模块中的另一个类?
public class QualifierWithParamsIMPL extends AnnotationLiteral<QualifierWithParams> implements QualifierWithParams {

    private final SomeType type;
    private final int someQualifierParameter;

    public CMSdbConnectionIMPL(SomeType type, int someQualifierParameter){
        this.type = type;
        this.someQualifierParameter = someQualifierParameter;
    }

    @Override
    public String type() {return type;}
    @Override
    public String someQualifierParameter() {return someQualifierParameter;}
}
com.api.QualifierWithParams qualifierParams = a.getAnnotation(com.api.QualifierWithParams.class);