前端连接websocket失败_Websocket出现的错误_牧心钰Cassie的博客

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前端使用sockjs，后台使用spring的websocket框架

结果在一个网络较慢的地方，发现tomcat报错信息：

Oct 28, 2015 10:10:43AM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service()for servlet [mvc-dispatcher] in context with path [/rscc] threw exception [Request processing failed; nested exception is org.springframework.web.socket.sockjs.SockJsException: Uncaught failure in SockJS request, uri=http://xxx/user/854/qckzogtf/xhr_streaming; nested exception is org.springframework.web.socket.sockjs.SockJsException: Uncaught failure for requesthttp://xxx/user/854/qckzogtf/xhr_streaming; nested exception is java.lang.IllegalArgumentException: Async support must be enabled on a servlet and for all filters involved in async request processing. This is done in Java code using the Servlet API or by adding "true" to servlet and filter declarations in web.xml. Also you must use a Servlet 3.0+ container] with root cause

java.lang.IllegalArgumentException: Async support must be enabled on a servlet and for all filters involved in async request processing. This is done in Java code using the Servlet API or by adding "true" to servlet and filter declarations in web.xml. Also you must use a Servlet 3.0+container

at org.springframework.util.Assert.isTrue(Assert.java:65)

at org.springframework.http.server.ServletServerHttpAsyncRequestControl.(ServletServerHttpAsyncRequestControl.java:59)

at org.springframework.http.server.ServletServerHttpRequest.getAsyncRequestControl(ServletServerHttpRequest.java:202)

at org.springframework.web.socket.sockjs.transport.session.AbstractHttpSockJsSession.initRequest(AbstractHttpSockJsSession.java:238)

at org.springframework.web.socket.sockjs.transport.session.AbstractHttpSockJsSession.handleInitialRequest(AbstractHttpSockJsSession.java:203)

at org.springframework.web.socket.sockjs.transport.session.StreamingSockJsSession.handleInitialRequest(StreamingSockJsSession.java:54)

at org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler.handleRequestInternal(AbstractHttpSendingTransportHandler.java:66)

at org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler.handleRequest(AbstractHttpSendingTransportHandler.java:58)

at org.springframework.web.socket.sockjs.transport.TransportHandlingSockJsService.handleTransportRequest(TransportHandlingSockJsService.java:254)

at org.springframework.web.socket.sockjs.support.AbstractSockJsService.handleRequest(AbstractSockJsService.java:317)

at org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler.handleRequest(SockJsHttpRequestHandler.java:88)

at org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:51)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)

at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

前端使用sockjs，后台使用spring的websocket框架结果在一个网络较慢的地方，发现tomcat报错信息：Oct 28, 2015 10:10:43AM org.apache.catalina.core.StandardWrapperValve invokeSEVERE: Servlet.service()for servlet [mvc-dispatcher] in context ... WebSocket 是HTML5开始提供的一种在单个 TCP 连接上进行全双工通讯的协议。在 WebSocket API中，浏览器和服务器只需要做一个握手的动作，然后，浏览器和服务器之间就形成了一条快速通道。两者之间就直接可以数据互相传送。浏览器通过 JavaScript 向服务器发出建立 WebSocket 连接的请求，连接建立以后，客户端和服务器端就可以通... SSLContext sslContext = SSLContext.getInstance("TLS"); KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm()); KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType()); keyStore.load(new FileInputStream(new File("keystore.jks")), "password".toCharArray()); keyManagerFactory.init(keyStore, "password".toCharArray()); sslContext.init(keyManagerFactory.getKeyManagers(), null, null); HttpServer server = HttpServer.create(new InetSocketAddress(443), 0); server.setHttpsConfigurator(new HttpsConfigurator(sslContext) { public void configure(HttpsParameters params) { SSLContext context = getSSLContext(); SSLEngine engine = context.createSSLEngine(); params.setNeedClientAuth(false); params.setCipherSuites(engine.getEnabledCipherSuites()); params.setProtocols(engine.getEnabledProtocols()); params.setSSLParameters(context.getDefaultSSLParameters()); 3. 创建SSL WebSocket 服务器你可以使用Jetty或Tyrus等Java WebSocket 库来创建SSL WebSocket 服务器。这里以Tyrus为例： SSLContext sslContext = SSLContext.getInstance("TLS"); KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm()); KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType()); keyStore.load(new FileInputStream(new File("keystore.jks")), "password".toCharArray()); keyManagerFactory.init(keyStore, "password".toCharArray()); sslContext.init(keyManagerFactory.getKeyManagers(), null, null); Server server = new Server("localhost", 443, "/", null, ChatEndpoint.class, new HashMap<String, Object>(), sslContext); server.start(); 这些步骤应该可以帮助你配置Java WebSocket 和SSL WebSocket 与HTTPS 连接。