rock007 commented on issue #6239:
URL: https://github.com/apache/dubbo/issues/6239#issuecomment-1119696438
> 环境
>
> * Dubbo version: 2.6.8
> * Operating System version: Mac OS
> * Java version: 1.8
> * Springboot version: 2.2.5
>
> 问题描述
springboot集成dubbo，想要支持rest协议servlet类型server，但是bootstraplistener被加载了但是没有执行contextInitialized方法，导致真正服务暴露时报错
1、集成了dubbo-spring-boot-starter，另外加上了bootstraplistener和ServletRegistrationBean的自动装配类
@bean @ConditionalOnMissingBean( value = {BootstrapListener.class}) public
BootstrapListener bootstrapListener() { BootstrapListener bootstrapListener =
new BootstrapListener(); return bootstrapListener; }
>
> ```
> @Bean
> @ConditionalOnMissingBean( value = {DispatcherServlet.class})
> public ServletRegistrationBean
servletRegistrationBean(ConfigurableEnvironment environment) {
> ServletRegistrationBean servletRegistrationBean = new
ServletRegistrationBean(new DispatcherServlet());
> servletRegistrationBean.addUrlMappings("/*");
> servletRegistrationBean.setName("dispatcher");
> servletRegistrationBean.setLoadOnStartup(1);
> return servletRegistrationBean;
> }
> ```
>
> 2、war 3、启动类继承SpringBootServletInitializer @SpringBootApplication public
class ServletDemoProvider extends SpringBootServletInitializer { @OverRide
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder)
{ return builder.sources(ServletDemoProvider.class); } public static void
main(String[] args) throws Exception {
SpringApplication.run(ServletDemoProvider.class, args); } } 4、依赖
org.springframework.boot spring-boot-starter-web org.springframework.boot
spring-boot-starter-tomcat
>
> 5、错误栈：
>
> com.alibaba.dubbo.rpc.RpcException: No servlet context found. If you are
using server='servlet', make sure that you've configured
com.alibaba.dubbo.remoting.http.servlet.BootstrapListener in web.xml at
com.alibaba.dubbo.rpc.protocol.rest.DubboHttpServer.doStart(DubboHttpServer.java:62)
~[dubbo-rpc-rest-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.protocol.rest.BaseRestServer.start(BaseRestServer.java:38)
~[dubbo-rpc-rest-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.protocol.rest.RestProtocol.doExport(RestProtocol.java:90)
~[dubbo-rpc-rest-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.protocol.AbstractProxyProtocol.export(AbstractProxyProtocol.java:71)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:57)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:62)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapp
er.java:100) ~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:172)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:135)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:55)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:60)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:98)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:515)
~[dubbo-2.6.8.jar:2.6.8] at com.alibaba.dubbo.config.ServiceConfig.doExp
ortUrls(ServiceConfig.java:360) ~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:319)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:217)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.config.spring.ServiceBean.export(ServiceBean.java:266)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:106)
~[dubbo-2.6.8.jar:2.6.8] at
com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:53)
~[dubbo-2.6.8.jar:2.6.8] at
org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE] at
org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE] at
org.springframework.context.event.SimpleApplication
EventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:403)
~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:360)
~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:897)
~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE] at
org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162)
~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553)
~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE] at org.springframework
.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141)
~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:152)
[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:132)
[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(Sp
ringBootServletInitializer.java:92)
[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE] at
org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)
[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE] at
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5136)
[catalina.jar:9.0.35] at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
[catalina.jar:9.0.35] at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
[catalina.jar:9.0.35] at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
[catalina.jar:9.0.35] at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
[catalina.jar:9.0.35] at
org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1727)
[catalina.jar:9.0.35] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[na:1.8.0_211] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~
[na:1.8.0_211] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.8.0_211] at java.lang.reflect.Method.invoke(Method.java:498)
~[na:1.8.0_211] at
org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
[tomcat-coyote.jar:9.0.35] at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
[na:1.8.0_211] at
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
[na:1.8.0_211] at
org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
[catalina.jar:9.0.35] at
org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:405)
[catalina.jar:9.0.35] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[na:1.8.0_211] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[na:1.8.0_211] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.8
.0_211] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211] at
org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
[tomcat-coyote.jar:9.0.35] at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
[na:1.8.0_211] at
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
[na:1.8.0_211] at
com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
[na:1.8.0_211] at
javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
[na:1.8.0_211] at
javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
[na:1.8.0_211] at
javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
[na:1.8.0_211] at java.security.AccessController.doPrivileged(Native Method)
[na:1.8.0_211] at
javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionI
mpl.java:1408) [na:1.8.0_211] at
javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
[na:1.8.0_211] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[na:1.8.0_211] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[na:1.8.0_211] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.8.0_211] at java.lang.reflect.Method.invoke(Method.java:498)
~[na:1.8.0_211] at
sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
[na:1.8.0_211] at sun.rmi.transport.Transport$1.run(Transport.java:200)
[na:1.8.0_211] at sun.rmi.transport.Transport$1.run(Transport.java:197)
[na:1.8.0_211] at java.security.AccessController.doPrivileged(Native Method)
[na:1.8.0_211] at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
[na:1.8.0_211] at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
[na:1.8.0_211] at sun.rmi.transport.tcp.TCPTransport$Conne
ctionHandler.run0(TCPTransport.java:834) [na:1.8.0_211] at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
[na:1.8.0_211] at java.security.AccessController.doPrivileged(Native Method)
[na:1.8.0_211] at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
[na:1.8.0_211] at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
~[na:1.8.0_211] at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
~[na:1.8.0_211] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_211]
>
>
6、其他尝试：增加web.xml，指定bootstraplistener，确实可以加载并执行contextInitialized方法，但是不再执行@SpringBootApplication注解
这个问题没解决吧，我用最新的3.0.x版本也遇到这个错
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