java - 迁移到 Jersey 2.25 时替换 Jersey 1.19 中的 InjectableProvider

Question

我正在从 Jersey 1.19 迁移到 Jersey 2.25。我没有找到足够的文档来替换 InjectableProvider

有人可以帮助我吗？

import java.lang.reflect.Type;
import java.util.List;
import java.util.Locale;

import javax.ws.rs.core.Context;
import javax.ws.rs.ext.Provider;

import org.glassfish.hk2.api.InjectionResolver;
import org.springframework.stereotype.Component;

import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.core.spi.component.ComponentContext;
import com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.server.impl.inject.AbstractHttpContextInjectable;
import com.sun.jersey.spi.inject.Injectable;
import com.sun.jersey.spi.inject.InjectableProvider;

@Provider
@Component
public class LocaleProvider extends AbstractHttpContextInjectable<Locale>
    implements InjectionResolver<Context, Type> {

  private final Locale swedish = new Locale("sv", "", "");

  @Override
  public ComponentScope getScope() {
    return ComponentScope.PerRequest;
  }

  @Override
  public Injectable<Locale> getInjectable(ComponentContext ic, Context a, Type c) {
    if (c.equals(Locale.class)) {
      return this;
    }

    return null;
  }

  @Override
  public Locale getValue(HttpContext c) {
    final List<Locale> locales = c.getRequest().getAcceptableLanguages();
    if (locales.isEmpty()) {
      return Locale.US;
    }

    for (Locale locale : locales) {
      if (locale.getLanguage().equals(swedish.getLanguage())) {
        return swedish;
      } else if (locale.getLanguage().equals(Locale.US.getLanguage())) {
        return Locale.US;
      }
    }

    // return english if no other supported language is found
    return Locale.US;
  }

}

Answer 1

使用 HK2 工厂。辅助抽象类是 AbstractContainerRequestValueFactory，它使您可以轻松访问 ContainerRequest。您可以从中获取可接受的语言

public class LocaleFactory
        extends AbstractContainerRequestValueFactory<Local> {

    @Override
    public Locale provide() {
        ContainerRequest cr = getContainerRequest();
    }
}

然后你需要注册它。如果您使用ResourceConfig，您可以这样做

public AppConfig extends ResourceConfig {
    public AppConfig() {
        register(new AbstractBinder() {
            @Override
            public void configure() {
                bindFactory(LocalFactory.class)
                    .to(Locale.class).in(RequestScoped.class);
            }
        });
    }
}

另请参阅:

• Dependency injection with Jersey 2.0