在无法找到答案且包含 beans.xml 的场景中注入(inject) beans 时出现以下异常:
Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type CustomerAgreementDaoImpl with qualifiers @Default
at injection point [BackedAnnotatedField] @Inject public com.evry.integrator.snow.fetch.CustomerAgreementFetcher.customerAgreementDaoImpl
at com.evry.integrator.snow.fetch.CustomerAgreementFetcher.customerAgreementDaoImpl(CustomerAgreementFetcher.java:0)
at org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:378)
at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:290)
以下是代码结构:
/WEB-INF 中的 Beans.xml
<beans xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/beans_1_1.xsd"
version="1.1" bean-discovery-mode="all">
</beans>
接口(interface)
public interface GenericDao<T, PK> {
public interface CustomerAgreementDao extends GenericDao<CustomerAgreement, Long>{
实现通用 DAO 的抽象类
public abstract class GenericDaoImpl<T, PK> implements GenericDao<T, PK> {
@PersistenceContext(unitName = "IntegratorMasterdataDS")
protected EntityManager em;
主要实现
@Stateless
public class CustomerAgreementDaoImpl extends GenericDaoImpl<CustomerAgreement, Long> implements CustomerAgreementDao {
public CustomerAgreementDaoImpl() {
System.out.println("CustomerAgreementDaoImpl");
}
Service类中使用的Dao
@Stateless
public class CustomerAgreementFetcher {
@Inject
public CustomerAgreementDaoImpl customerAgreementDaoImpl;
主调度程序加载以上所有内容
@Startup
@Singleton
@AccessTimeout(value = 5, unit = TimeUnit.MINUTES)
public class WPoller {
@Inject
CustomerAgreementFetcher customerAgreementFetcher;
最佳答案
能否将该字段的类型更新为 CustomerAgreementDao 接口(interface)？
@Stateless
public class CustomerAgreementFetcher {
@Inject
public CustomerAgreementDao customerAgreementDao;
相关主题:Is it possible to inject EJB implementation and not its interface using CDI?
关于java - 部署异常 : WELD-001408: Unsatisfied dependencies for type <Class> with qualifiers @Default at injection point [BackedAnnotatedField]，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59134836/