import io.dropwizard.auth.UnauthorizedHandler; //导入依赖的package包/类
@Override protected void configure() {

    bind(AuthConfiguration.class).toInstance(authConfiguration);

    bind(ApiKeyCredentials.class).asEagerSingleton();

    bind(new TypeLiteral<Authenticator<String, AuthPrincipal>>() {
    })
        .annotatedWith(Names.named("oauthAppAuthenticator"))
        .to(TokenOAuthAuthenticator.class);

    bind(new TypeLiteral<Authorizer<AuthPrincipal>>() {
    })
        .annotatedWith(Names.named("oauthAppAuthorizer"))
        .to(TokenAuthorizer.class);

    bind(new TypeLiteral<Authenticator<BasicCredentials, AuthPrincipal>>() {
    })
        .annotatedWith(Names.named("basicAppAuthenticator"))
        .to(BasicAuthenticator.class);

    List<String> multipleGroupAccessList = Lists.newArrayList();

    multipleGroupAccessList.addAll(
        Splitter.on(",").splitToList(authConfiguration.multipleGroupAccessList));

    bind(new TypeLiteral<List<String>>() {
    }).annotatedWith(Names.named("multipleGroupAccessList")).toInstance(multipleGroupAccessList);

    bind(AccessControlSupport.class).asEagerSingleton();

    bind(UnauthorizedHandler.class).to(DefaultUnauthorizedHandler.class);

    OkHttpClient.Builder builder = new OkHttpClient.Builder()
        .connectTimeout(authConfiguration.remoteOAuthServer.connectTimeout, TimeUnit.MILLISECONDS)
        .readTimeout(authConfiguration.remoteOAuthServer.connectTimeout, TimeUnit.MILLISECONDS);

    OkHttpClient client = builder.build();

    bind(OkHttpClient.class)
        .annotatedWith(Names.named("OAuthServiceClient"))
        .toInstance(client);

    logger.info("op=configure_oauth,remote_oauth_lookup_url={}",
        authConfiguration.remoteOAuthServer.tokenLookupURI);

    bind(URI.class)
        .annotatedWith(Names.named("OAuthServiceTokenLookupUri"))
        .toInstance(authConfiguration.remoteOAuthServer.tokenLookupURI);
  }
 

import io.dropwizard.auth.UnauthorizedHandler; //导入依赖的package包/类
public OAuth2AuthFilter.Builder<C, P, T, A> setUnauthorizedHandler(UnauthorizedHandler unauthorizedHandler) {
    this.unauthorizedHandler = unauthorizedHandler;
    return this;
}
 

import io.dropwizard.auth.UnauthorizedHandler; //导入依赖的package包/类
/**
 * Sets the given unauthorized handler
 *
 * @param unauthorizedHandler an {@link UnauthorizedHandler}
 * @return the current builder
 */
public AuthFilterBuilder<C, P, T> setUnauthorizedHandler(UnauthorizedHandler unauthorizedHandler) {
    this.unauthorizedHandler = unauthorizedHandler;
    return this;
}