后台启动之后,用不同的浏览器打开首页(先用Chrome后用edge,反过来也行),后打开的直接报错:
java.lang.IllegalStateException: Session has already been set. Old session: com.vaadin.server.VaadinSession@4a3a696d for app_servlet. New session: com.vaadin.server.VaadinSession@3bbfe3fe for app_servlet.
at com.vaadin.ui.UI.setSession(UI.java:469) ~[vaadin-server-8.6.4-17-cuba.jar:8.6.4-17-cuba]
at com.vaadin.server.communication.UIInitHandler.getBrowserDetailsUI(UIInitHandler.java:189) ~[vaadin-server-8.6.4-17-cuba.jar:8.6.4-17-cuba]
at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:67) ~[vaadin-server-8.6.4-17-cuba.jar:8.6.4-17-cuba]
at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) ~[vaadin-server-8.6.4-17-cuba.jar:8.6.4-17-cuba]
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1577) ~[vaadin-server-8.6.4-17-cuba.jar:8.6.4-17-cuba]
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:425) [vaadin-server-8.6.4-17-cuba.jar:8.6.4-17-cuba]
at com.haulmont.cuba.web.sys.CubaApplicationServlet.serviceAppRequest(CubaApplicationServlet.java:329) [cuba-web-7.0.9.jar:7.0.9]
at com.haulmont.cuba.web.sys.CubaApplicationServlet.service(CubaApplicationServlet.java:215) [cuba-web-7.0.9.jar:7.0.9]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [servlet-api.jar:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [catalina.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.14]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-websocket.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.14]
at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:107) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.CompositeFilter.doFilter(CompositeFilter.java:73) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at com.haulmont.cuba.web.sys.CubaHttpFilter.doFilter(CubaHttpFilter.java:108) [cuba-web-7.0.9.jar:7.0.9]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.14]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [catalina.jar:9.0.14]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [catalina.jar:9.0.14]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [catalina.jar:9.0.14]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [catalina.jar:9.0.14]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [catalina.jar:9.0.14]
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668) [catalina.jar:9.0.14]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [catalina.jar:9.0.14]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [catalina.jar:9.0.14]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-coyote.jar:9.0.14]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-coyote.jar:9.0.14]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) [tomcat-coyote.jar:9.0.14]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) [tomcat-coyote.jar:9.0.14]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-coyote.jar:9.0.14]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_45]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-util.jar:9.0.14]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]
版本7.0.9,之前低版本没出现这种情况!