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주석을 사용하지 않고 프로그래밍 방식으로 끝점을 등록하는 WebSocket 응용 프로그램이 있습니다.Tomcat에서 WebSocket 핸드 셰이크가 예기치 않은 응답 코드 500을 반환합니다.
관련 코드입니다 : 내가 종속성은 메이븐을 통해 바람둥이 - 웹 소켓과 바람둥이-WebSocket을-API 라이브러리에 포함 된 부두 컨테이너와 함께 IDE 내에서 실행할 때
ServerEndpointConfig.Configurator configurator =
(ServerEndpointConfig.Configurator)configuratorClass.newInstance();
ServerEndpointConfig serverEndpointConfig = ServerEndpointConfig.Builder
.create(endpointClass, endpointPath)
.configurator(configurator)
.build();
ServerContainer serverContainer = (ServerContainer)app
.getServletContext()
.getAttribute("javax.websocket.server.ServerContainer");
serverContainer.addEndpoint(serverEndpointConfig);
모든 것이 잘 작동, 하지만 Tomcat (8.5.5)에 배포 한 다음 WebSocket 연결을 설정하려고하면 브라우저의 콘솔에 다음 오류가 표시됩니다.
웹 소켓 연결을 'ws : //127.0.0.1 : 8080/echo 'failed : WebSocket 핸드 셰이크 중 오류 발생 : 예기치 않은 응답 전자 코드 : 500
Catalina 출력에 오류나 기타 정보가 기록되지 않으며이 문제를 디버깅하는 방법을 모르겠습니다.
많은 정보가 컴파일 타임에 알려지지 않았기 때문에 프로그래밍 방식으로 끝점을 구성해야하므로 Annotation 솔루션을 가리 키지 마십시오.
나는 FINE에 대한 로그 수준을 설정하고,이 관련 조각입니다 :
T.550 FINE [http-nio-IP-Acceptor-0] o.a.tomcat.util.threads.LimitLatch.countUpOrAwait Counting up[http-nio-IP-Acceptor-0] latch=2
T.551 FINE [http-nio-IP-exec-3] o.a.coyote.AbstractProtocol$ConnectionHandler.process Processing socket [[email protected]:java.nio.channels.SocketChannel[connected local=/192.168.1.17:8080 remote=/192.168.1.17:51259]] with status [OPEN_READ]
T.551 FINE [http-nio-IP-exec-3] o.a.coyote.http11.Http11InputBuffer.parseRequestLine Received [GET /echo HTTP/1.1
Host: 192.168.1.17:8080
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Upgrade: websocket
Origin: http://192.168.1.17:8080
Sec-WebSocket-Version: 13
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8
Cookie: LUCEE_ADMIN_LANG=en; cfid=de1b0016-ad0c-4601-b8ce-ecb47771b9c8; cftoken=0; LUCEE_ADMIN_LASTPAGE=debugging.logs
Sec-WebSocket-Key: Ogg0VPp9O3XZlR8rrgz4Gg==
Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits
]
T.553 FINE [http-nio-IP-exec-3] o.a.tomcat.util.http.Rfc6265CookieProcessor.parseCookieHeader Cookies: Parsing b[]: LUCEE_ADMIN_LANG=en; cfid=de1b0016-ad0c-4601-b8ce-ecb47771b9c8; cftoken=0; LUCEE_ADMIN_LASTPAGE=debugging.logs
T.554 FINE [http-nio-IP-exec-3] o.a.catalina.authenticator.AuthenticatorBase.invoke Security checking request GET /echo
T.554 FINE [http-nio-IP-exec-3] o.a.catalina.realm.RealmBase.findSecurityConstraints No applicable constraints defined
T.554 FINE [http-nio-IP-exec-3] o.a.catalina.authenticator.AuthenticatorBase.invoke Not subject to any constraint
T.561 FINE [http-nio-IP-exec-3] o.a.tomcat.util.http.Parameters.setEncoding Set encoding to ISO-8859-1
T.563 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass loadClass(o.a.tomcat.util.collections.LocalStrings, false)
T.563 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass Delegating to parent classloader1 [email protected]
T.563 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass Searching local repositories
T.563 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.findClass findClass(o.a.tomcat.util.collections.LocalStrings)
T.564 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.findClass --> Returning ClassNotFoundException
T.564 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream getResourceAsStream(org/apache/tomcat/util/collections/LocalStrings.properties)
T.564 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream Delegating to parent classloader [email protected]
T.565 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream Searching local repositories
T.565 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream --> Resource not found, returning null
T.566 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass loadClass(o.a.tomcat.util.collections.LocalStrings_en, false)
T.566 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass Delegating to parent classloader1 [email protected]
T.567 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass Searching local repositories
T.567 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.findClass findClass(o.a.tomcat.util.collections.LocalStrings_en)
T.568 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.findClass --> Returning ClassNotFoundException
T.569 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream getResourceAsStream(org/apache/tomcat/util/collections/LocalStrings_en.properties)
T.569 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream Delegating to parent classloader java.net.URLClas[email protected]
T.570 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream Searching local repositories
T.571 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream --> Resource not found, returning null
T.571 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass loadClass(o.a.tomcat.util.collections.LocalStrings_en_US, false)
T.571 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass Delegating to parent classloader1 [email protected]
T.572 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.loadClass Searching local repositories
T.572 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.findClass findClass(o.a.tomcat.util.collections.LocalStrings_en_US)
T.573 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.findClass --> Returning ClassNotFoundException
T.573 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream getResourceAsStream(org/apache/tomcat/util/collections/LocalStrings_en_US.properties)
T.573 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream Delegating to parent classloader [email protected]
T.574 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream Searching local repositories
T.574 FINE [http-nio-IP-exec-3] o.a.catalina.loader.WebappClassLoaderBase.getResourceAsStream --> Resource not found, returning null
T.581 FINE [http-nio-IP-exec-3] o.a.coyote.AbstractProcessorLight.process Socket: [[email protected]:[email protected]:java.nio.channels.SocketChannel[connected local=/192.168.1.17:8080 remote=/192.168.1.17:51259]], Status in: [OPEN_READ], State out: [CLOSED]
T.582 FINE [http-nio-IP-exec-3] o.a.tomcat.util.threads.LimitLatch.countDown Counting down[http-nio-IP-exec-3] latch=2
T.114 FINE [http-nio-IP-exec-4] o.a.coyote.AbstractProtocol$ConnectionHandler.process Processing socket [[email protected]:java.nio.channels.SocketChannel[connected local=/192.168.1.17:8080 remote=/192.168.1.17:51254]] with status [ERROR]
T.115 FINE [http-nio-IP-exec-4] o.a.tomcat.util.threads.LimitLatch.countDown Counting down[http-nio-IP-exec-4] latch=1