WELD-001408：在注入点 [BackedAnnotatedField] @Inject 具有限定符 @Default 的类型 Logger 的依赖关系不满足

Question

我在使用 Arquillian 测试 JavaEE8 应用程序时遇到了这个问题：WELD-001408：在注入点 [BackedAnnotatedField] @Inject private academy.learnprogramming.services.TodoService.LOG 使用限定符 @Default 的类型 Logger 的依赖关系不满足

我对注入的 EntityManager 有同样的错误

这些是我的课：

TodoService.class（我必须测试的 class）

package academy.learnprogramming.services;

import academy.learnprogramming.entities.Todo;
import org.apache.log4j.Logger;

import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.transaction.Transactional;
import java.util.List;

@Transactional
public class TodoService {

    @Inject
    private Logger LOG = Logger.getLogger(TodoService.class);

    @Inject
    EntityManager entityManager;

    public Todo createTodo(Todo todo) {
        //Persist into db
        entityManager.persist(todo);
        return todo;
    }

    public Todo updateTodo(Todo todo) {
        entityManager.merge(todo);
        return todo;
    }

    @PostConstruct
    private void init() {
        LOG.info("Bean TodoService created");
    }

    public Todo findTodoById(Long id) {
        return entityManager.find(Todo.class, id);
    }

    public List<Todo> getTodos(){
        return entityManager.createQuery("SELECT t from Todo t", Todo.class).getResultList();
    }

}

TodoServiceTest.class（用于测试的class）

package academy.learnprogramming.services;

import academy.learnprogramming.config.Producers;
import academy.learnprogramming.entities.Todo;
import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.asset.EmptyAsset;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import static org.junit.Assert.*;

@RunWith(Arquillian.class)
public class TodoServiceTest {

    @Deployment
    public static JavaArchive createDeployment() {
        return ShrinkWrap.create(JavaArchive.class)
                .addClasses(TodoService.class, Todo.class, Producers.class)
                .addAsResource("persistence.xml", "META-INF/persistence.xml")
                .addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
    }

    @Before
    public void setUp() throws Exception {
    }

    @After
    public void tearDown() throws Exception {
    }

    @Test
    public void createTodo() {
    }

    @Test
    public void updateTodo() {
    }

    @Test
    public void findTodoById() {
    }

    @Test
    public void getTodos() {
    }
}

Producers.class（用于将第 3 方库添加到 CDI 的类）

package academy.learnprogramming.config;


import org.apache.log4j.Logger;
import org.dozer.DozerBeanMapper;

import javax.enterprise.context.RequestScoped;
import javax.enterprise.inject.Produces;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.ArrayList;
import java.util.List;

//If producers becomes complitated, split it in many classes, each for a single producer
public class Producers {

    @Produces
    @PersistenceContext
    EntityManager entityManager;

    @Produces
    public Logger produceLogger(InjectionPoint injectionPoint) {
        return Logger.getLogger(injectionPoint.getMember().getDeclaringClass().getName());
    }

    //Auto mapper
    @Produces
    public DozerBeanMapper produceDozenBeanMapper() {
        DozerBeanMapper mapper = new DozerBeanMapper();
        List<String> mappingFiles = new ArrayList();
        mappingFiles.add("dozerJdk8Converters.xml");
        mapper.setMappingFiles(mappingFiles);
        return mapper;
    }
}

环顾四周，我了解到可能的问题可能是：

1. beans.xml 如果你不放 bean-discovery-mode="all" 可能会出现问题，因为它不会扫描未注释的 bean，但我的 beans.xml 文件有 bean-discovery-mode="all"
2. 注入 TodoService class 的 Logger 和 EntityManager 不能有生产者，但我有生产者 class
3. People can make mistakes during the import of Logger class for TodoService, TodoServiceTest and Producers classes, having for example import org.apache.log4j.Logger in one class, and java util.logging.Logger for another, but I have all classes with import org.apache.log4j.Logger

如果我删除 @Inject 注释并使用类中的记录器，它可以工作。

我还能尝试什么？ 非常感谢您的宝贵时间。

Answer 1

如果您使用 WAR 文件，请尝试使用 WebArchive

 @Deployment
    public static WebArchive createDeployment() {
        return ShrinkWrap.create(WebArchive.class)
                .addClasses(TodoService.class, Todo.class, Producers.class)
                .addAsResource("persistence.xml", "META-INF/persistence.xml")
                .addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
}

删除Logger.getLogger(TodoService.class); 它将实例化记录器的生产者。

@RequestScoped
@Transactional
public class TodoService {

    @Inject
    private Logger log;

    @Inject
    EntityManager entityManager;

    public Todo createTodo(Todo todo) {
        //Persist into db
        entityManager.persist(todo);
        return todo;
    }

    public Todo updateTodo(Todo todo) {
        entityManager.merge(todo);
        return todo;
    }

    @PostConstruct
    private void init() {
        log.info("Bean TodoService created");
    }

    public Todo findTodoById(Long id) {
        return entityManager.find(Todo.class, id);
    }

    public List<Todo> getTodos(){
        return entityManager.createQuery("SELECT t from Todo t", Todo.class).getResultList();
    }