java-Spring Boot Rest NioSocketWrapper.getSslSupport NullPointerException

问题

从美国登录到Digitalocean位于纽约市数据中心的服务的特定客户,我们面临着问题.他报告了一个通用的HTTP连接问题.来自欧洲的其他客户没有问题.

我还可以确认客户端无法使用授权服务创建会话.

建筑

我们有一个webapp,一个第三方SSO提供程序,一个授权服务和一个资源服务.服务使用HTTPS,而Webapp则不使用.

这些服务是由MongoDB支持的具有Spring-boot-starter-security,spring-boot-starter-web和unirest-java(1.4.9)的Spring Boot(1.4.1.RELEASE)REST控制器.

日志

资源服务

2016-10-29 15:37:57.282 ERROR 5 --- [nio-8444-exec-4] o.a.coyote.http11.Http11NioProtocol      : Error reading request, ignored

java.lang.NullPointerException: null
    at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.getSslSupport(NioEndpoint.java:1329) ~[tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:792) ~[tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410) [tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_11]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_11]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_11]

认证服务

2016-10-29 15:37:57.279 ERROR 7 --- [nio-8443-exec-6] o.a.coyote.http11.Http11NioProtocol      : Error reading request, ignored

java.lang.NullPointerException: null
    at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.getSslSupport(NioEndpoint.java:1329) ~[tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:792) ~[tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410) [tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_11]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_11]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.5.jar!/:8.5.5]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_11]

题

我不知道为什么会弹出此异常,而只对特定的客户端显示.你能帮助我吗？我将提供更多信息.

解决方法:

基于this topic,它似乎是Http11NioProtocol中的错误.作为一种解决方法,他们建议使用Http2NioProcol.

这是在spring boot中如何配置Htpp2NioProtocol的示例.

@Bean
public EmbeddedServletContainerFactory servletContainer() {
    TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory();
    tomcat.addAdditionalTomcatConnectors(createSslConnector());
    return tomcat;
}

private Connector createSslConnector() {
    Connector connector = new Connector("org.apache.coyote.http11.Http2NioProtocol");
    Http11NioProtocol protocol = (Http11NioProtocol) connector.getProtocolHandler();
    try {
        File keystore = new ClassPathResource("keystore").getFile();
        File truststore = new ClassPathResource("keystore").getFile();
        connector.setScheme("https");
        connector.setSecure(true);
        connector.setPort(8443);
        protocol.setSSLEnabled(true);
        protocol.setKeystoreFile(keystore.getAbsolutePath());
        protocol.setKeystorePass("changeit");
        protocol.setTruststoreFile(truststore.getAbsolutePath());
        protocol.setTruststorePass("changeit");
        protocol.setKeyAlias("apitester");
        return connector;
    }
    catch (IOException ex) {
        throw new IllegalStateException("can't access keystore: [" + "keystore"
                + "] or truststore: [" + "keystore" + "]", ex);
    }
}

ps：我认为这不会真正解决问题,但是会给您更好的错误消息,而不是NPE.我还建议您获取无法连接到服务的用户的浏览器和操作系统信息.也许他的计算机无法解析您服务器证书的证书链.

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