Question

在使用Google Pubsub列出主题时获取异常，我的网络应用程序正在tomcat上运行。

public static List<String> listTopics(GcpCredentials gcCredentials, String project) throws GCPException, IOException
{
    List<String> topics = new ArrayList<>();
    TopicAdminClient client = getTopicClient(gcCredentials);
    ProjectName projectName = ProjectName.create(project);
    ListTopicsPagedResponse response = client.listTopics(projectName);
    for (Topic topic :response.iterateAll())
    {
        topics.add(topic.getNameAsTopicName().getTopic());
    }
    return topics;
}`

例外：

java.lang.IllegalArgumentException：Jetty ALPN / NPN配置不正确。
在io.grpc.netty.GrpcSslContexts.selectApplicationProtocolConfig（GrpcSslContexts.java:174）在io.grpc.netty.GrpcSslContexts.configure（GrpcSslContexts.java:151）在io.grpc.netty.GrpcSslContexts.configure（GrpcSslContexts.java:139）在io.grpc.netty.GrpcSslContexts.forClient（GrpcSslContexts.java:109）在io.grpc.netty.NettyChannelBuilder.createProtocolNegotiatorByType（NettyChannelBuilder.java:335）在io.grpc.netty.NettyChannelBuilder.createProtocolNegotiator（NettyChannelBuilder.java:308） at io.grpc.netty.NettyChannelBuilder $ NettyTransportFactory $ DynamicNettyTransportParams.getProtocolNegotiator（NettyChannelBuilder.java:499）在io.grpc.netty.NettyChannelBuilder $ NettyTransportFactory.newClientTransport（NettyChannelBuilder.java:448） at io.grpc.internal.CallCredentialsApplyingTransportFactory.newClientTransport（CallCredentialsApplyingTransportFactory.java:61） at io.grpc.internal.InternalSubchannel.startNewTransport（InternalSubchannel.java:209）在io.grpc.internal.InternalSubchannel.obtainActiveTransport（InternalSubchannel.java:186） at io.grpc.internal.ManagedChannelImpl $ SubchannelImplImpl.obtainActiveTransport（ManagedChannelImpl.java:806）在io.grpc.internal.GrpcUtil.getTransportFromPickResult（GrpcUtil.java:568）在io.grpc.internal.DelayedClientTransport.reprocess（DelayedClientTransport.java:296） at io.grpc.internal.ManagedChannelImpl $ LbHelperImpl $ 5.run（ManagedChannelImpl.java:724）在io.grpc.internal.ChannelExecutor.drain（ChannelExecutor.java:87）在io.grpc.internal.ManagedChannelImpl $ LbHelperImpl.runSerialized（ManagedChannelImpl.java:715） at io.grpc.internal.ManagedChannelImpl $ NameResolverListenerImpl.onUpdate（ManagedChannelImpl.java:752） at io.grpc.internal.DnsNameResolver $ 1.run（DnsNameResolver.java:174）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142） at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:617）在java.lang.Thread.run（Thread.java:745）

Answer 1

我已经使用Netty 4.1.15.Final观察到了这个问题，但是没有使用4.1.13.Final。检查您的传递依赖项。即Spring Boot引用Netty。

我添加到POM以使其与Spanner API版本0.22.0-beta一起使用：

<properties> <v.netty>4.1.13.Final</v.netty> </properties> ... <dependencyManagement> <dependencies> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec-http</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec-http2</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-handler</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-common</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-handler-proxy</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-transport</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-resolver</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec-socks</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-buffer</artifactId> <version>${v.netty}</version> </dependency> </dependencies> </dependencyManagement>

如果问题仍然存在，或者它不是一个选项，请使用适当的bootclasspath条目运行JVM，如：

java -Xbootclasspath/p:/tmp/alpn-boot-8.1.11.v20170118.jar -cp ...

请务必将/tmp/alpn-boot-8.1.11.v20170118.jar替换为与您的JVM版本相匹配的alpn jar的位置，如本页所示：https://www.eclipse.org/jetty/documentation/9.4.x/alpn-chapter.html

Answer 2

github上有一个可能的解决方案：＆＃34; Exception when configuring SSL: "Jetty ALPN/NPN has not been properly configured.＆＃34;

建议的步骤，引用上述文件：

1）编辑catalina.sh /usr/local/Cellar/tomcat/8.5.3/libexec/bin/catalina.sh

2）在第103行，添加以下内容 CATALINA_OPTS =＆＃34; -javaagent：/Library/Tomcat/lib/jetty-alpn-agent-2.0.6.jar"

3）重启tomcat ../bin/shutdown.sh ../ bin / startup.sh

Google-Cloud：尚未正确配置Jetty ALPN / NPN

2 个答案: