我创建了Java Web应用程序并尝试强制使用JSR-356，因为据我所知，它是使用javax.servlet.HttpSession对象的原始AtmosphereResource的唯一方法。
当我将我的应用程序部署到Jetty（v.9.3.7）时，我收到以下错误：
16:45:16.535 [Scanner-1] ERROR org.atmosphere.util.IOUtils -
java.lang.IllegalStateException: Unable to configure jsr356 at that stage. No Servlet associated with Key[type=org.atmosphere.guice.AtmosphereGuiceServlet, annotation=[none]]
at org.atmosphere.util.IOUtils.guestRawServletPath(IOUtils.java:274) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.util.IOUtils.guestServletPath(IOUtils.java:248) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.container.JSR356AsyncSupport.<init>(JSR356AsyncSupport.java:63) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.container.JSR356AsyncSupport.<init>(JSR356AsyncSupport.java:40) [atmosphere-runtime-2.4.3.jar:2.4.3]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [na:1.8.0_74]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) [na:1.8.0_74]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) [na:1.8.0_74]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) [na:1.8.0_74]
at org.atmosphere.cpr.DefaultAsyncSupportResolver.newCometSupport(DefaultAsyncSupportResolver.java:234) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.DefaultAsyncSupportResolver.resolveWebSocket(DefaultAsyncSupportResolver.java:306) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.DefaultAsyncSupportResolver.resolve(DefaultAsyncSupportResolver.java:292) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFramework.autoDetectContainer(AtmosphereFramework.java:2082) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFramework.init(AtmosphereFramework.java:914) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFramework.init(AtmosphereFramework.java:838) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFrameworkInitializer.configureFramework(AtmosphereFrameworkInitializer.java:75) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereServlet.configureFramework(AtmosphereServlet.java:84) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereServlet.configureFramework(AtmosphereServlet.java:80) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereServlet.init(AtmosphereServlet.java:75) [atmosphere-runtime-2.4.3.jar:2.4.3]
at com.google.inject.servlet.ServletDefinition.init(ServletDefinition.java:121) [guice-servlet-4.0.jar:na]
at com.google.inject.servlet.ManagedServletPipeline.init(ManagedServletPipeline.java:82) [guice-servlet-4.0.jar:na]
at com.google.inject.servlet.ManagedFilterPipeline.initPipeline(ManagedFilterPipeline.java:103) [guice-servlet-4.0.jar:na]
at com.google.inject.servlet.GuiceFilter.init(GuiceFilter.java:220) [guice-servlet-4.0.jar:na]
at org.eclipse.jetty.servlet.FilterHolder.initialize(FilterHolder.java:137) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:856) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:350) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1379) [jetty-webapp-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1341) [jetty-webapp-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:772) [jetty-server-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:263) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:517) [jetty-webapp-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:41) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:188) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:499) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:147) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:180) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:458) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:64) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:610) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:529) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:392) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:329) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at java.util.TimerThread.mainLoop(Timer.java:555) [na:1.8.0_74]
at java.util.TimerThread.run(Timer.java:505) [na:1.8.0_74]
16:45:16.536 [Scanner-1] ERROR o.a.cpr.DefaultAsyncSupportResolver - Real error: Unable to configure jsr356 at that stage
java.lang.IllegalStateException: Unable to configure jsr356 at that stage
at org.atmosphere.util.IOUtils.guestRawServletPath(IOUtils.java:292) ~[atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.util.IOUtils.guestServletPath(IOUtils.java:248) ~[atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.container.JSR356AsyncSupport.<init>(JSR356AsyncSupport.java:63) ~[atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.container.JSR356AsyncSupport.<init>(JSR356AsyncSupport.java:40) ~[atmosphere-runtime-2.4.3.jar:2.4.3]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_74]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_74]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_74]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_74]
at org.atmosphere.cpr.DefaultAsyncSupportResolver.newCometSupport(DefaultAsyncSupportResolver.java:234) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.DefaultAsyncSupportResolver.resolveWebSocket(DefaultAsyncSupportResolver.java:306) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.DefaultAsyncSupportResolver.resolve(DefaultAsyncSupportResolver.java:292) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFramework.autoDetectContainer(AtmosphereFramework.java:2082) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFramework.init(AtmosphereFramework.java:914) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFramework.init(AtmosphereFramework.java:838) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereFrameworkInitializer.configureFramework(AtmosphereFrameworkInitializer.java:75) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereServlet.configureFramework(AtmosphereServlet.java:84) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereServlet.configureFramework(AtmosphereServlet.java:80) [atmosphere-runtime-2.4.3.jar:2.4.3]
at org.atmosphere.cpr.AtmosphereServlet.init(AtmosphereServlet.java:75) [atmosphere-runtime-2.4.3.jar:2.4.3]
at com.google.inject.servlet.ServletDefinition.init(ServletDefinition.java:121) [guice-servlet-4.0.jar:na]
at com.google.inject.servlet.ManagedServletPipeline.init(ManagedServletPipeline.java:82) [guice-servlet-4.0.jar:na]
at com.google.inject.servlet.ManagedFilterPipeline.initPipeline(ManagedFilterPipeline.java:103) [guice-servlet-4.0.jar:na]
at com.google.inject.servlet.GuiceFilter.init(GuiceFilter.java:220) [guice-servlet-4.0.jar:na]
at org.eclipse.jetty.servlet.FilterHolder.initialize(FilterHolder.java:137) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:856) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:350) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1379) [jetty-webapp-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1341) [jetty-webapp-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:772) [jetty-server-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:263) [jetty-servlet-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:517) [jetty-webapp-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:41) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:188) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:499) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:147) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:180) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:458) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:64) [jetty-deploy-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:610) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:529) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:392) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:329) [jetty-util-9.3.7.v20160115.jar:9.3.7.v20160115]
at java.util.TimerThread.mainLoop(Timer.java:555) [na:1.8.0_74]
at java.util.TimerThread.run(Timer.java:505) [na:1.8.0_74]
如果我强制使用本机API来优先使用以下代码
params.put(ApplicationConfig.WEBSOCKET_SUPPRESS_JSR356, "true");
然后一切正常。
这是我的部署描述符：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<listener>
<listener-class>com.sample.guice.GuiceContextListener</listener-class>
</listener>
<filter>
<filter-name>guiceFilter</filter-name>
<filter-class>com.google.inject.servlet.GuiceFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>guiceFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
用于提供所有绑定的模块：
public class ServerModule extends AbstractModule
{
@Override
protected void configure()
{
install(new ServletModule() {
@Override
protected void configureServlets()
{
Map<String, String> params = new HashMap<>();
// params.put(ApplicationConfig.WEBSOCKET_SUPPRESS_JSR356, "true");
serve("/atmosphere").with(AtmosphereGuiceServlet.class, params);
}
});
}
}
我省略了用@ManagedService和其他一些代码注释的类，因为没有问题。正如我所说，一切都可以使用原生websocket API。
答案 0 :(得分：0)
您只需添加ApplicationConfig.JSR356_MAPPING_PATH initParameter并尝试一下即可。
如果它不起作用，可能是您可以显式初始化大气框架并指定init参数
ApplicationConfig.JSR356_MAPPING_PATH作为有效的键值对。
对于初始化，您可以看到org.atmosphere.cpr.ContainerInitializer以及在初始化大气框架时添加路径
final AtmosphereFramework framework = AtmosphereFrameworkInitializer.newAtmosphereFramework(c, false, true);
// Hack to make jsr356 works. Pretty ugly.
DefaultAsyncSupportResolver resolver = new DefaultAsyncSupportResolver(framework.getAtmosphereConfig());
framework.getAtmosphereConfig().addInitParam(ApplicationConfig.JSR356_MAPPING_PATH,appropriateservletPath);
答案 1 :(得分：0)
消息： 当时无法配置jsr356
意味着，需要在ServletContextInitialization阶段添加jsr356支持，最好是在ServletContextListener中
我的问题是，码头9.4原生websocket与大气不再兼容，另一方面jsr356与guice不兼容
我设法使jsr356与vaadin 8.8.1和jetty 9.4一起使用，但是它要求VaadinServlet由Jetty直接管理。这不适用于Guice，而Guice会安装自己的GuiceFilter，并且servlet不会直接注册到Jetty。
有关更多信息，请查看JSR356WebsocketInitializer.initAtmosphereForVaadinServlet