CDI对象不可用注入的构造函数代理

Question

在尝试向CDI bean（ApplicationScoped）的构造函数中注入参数时，我遇到了以下问题：

Caused by: org.jboss.weld.exceptions.UnproxyableResolutionException: WELD-001435: Normal scoped bean class xx.Config is not proxyable because it has no no-args constructor - Managed Bean [class xx.Config] with qualifiers [@Default @Named @Any].
    at org.jboss.weld.bean.proxy.DefaultProxyInstantiator.validateNoargConstructor(DefaultProxyInstantiator.java:50)
    at org.jboss.weld.util.Proxies.getUnproxyableClassException(Proxies.java:217)
    at org.jboss.weld.util.Proxies.getUnproxyableTypeException(Proxies.java:178)

但是，我在类上确实有一个可注入的构造函数：

@Inject
public Config(ConfigLocator configLocator) {
    defaultConfigPath = configLocator.getPath();
    doStuff();
}

有什么想法这里出了什么问题吗？

Answer 1

解决了类划分为接口和实现的类似问题。在您的情况下,类似于以下内容：

public interface Config
{
  // API here
}

@ApplicationScoped @Priority(0)
public class ConfigImpl implements Config
{
  @Inject
  public ConfigImpl(ConfigLocator configLocator) { ... }

  // API implementation here
}