我试图将我的Logger注入到我的EJB中:
@Inject
Logger logger;
但我收到以下错误
Caused by: org.jboss.weld.exceptions.AmbiguousResolutionException: WELD-001318 Cannot resolve an ambiguous dependency between
[Producer Method [Logger] with qualifiers [@Any @Default] declared as [[method] @Produces public be.fgov.health.ecad.Resource.createLogger(InjectionPoint)],
Producer Method [Logger] with qualifiers [@Any @Default] declared as [[method] @Produces public be.fgov.health.ecad.Resource.createLogger(InjectionPoint)]]
我真的不知道这可能是什么?从我看来,以下课程没有错?我不明白为什么jBoss说有一种不明确的依赖......
@Dependent
public class Resource {
@Produces
public Logger createLogger(final InjectionPoint ip) {
return Logger.getLogger(ip.getMember().getDeclaringClass());
}
}
答案 0 :(得分:0)
您不必自己实现此功能,此用例有一个焊接扩展名:
通过将logger对象简单地注入任何CDI bean,现在可以更轻松地向应用程序添加日志记录。只需使用@Logger限定符注释注释org.jboss.weld.log.Log类型成员,并将适当的logger对象注入到bean的任何实例中。
import org.jboss.weld.annotation.Logger;
import org.jboss.weld.log.Log;
public class Checkout {
private @Inject @Logger Log log;
public void invoiceItems() {
ShoppingCart cart;
...
log.debug("Items invoiced for {0}", cart);
}
}