在我的web应用程序中从spring获取'找不到线程绑定的请求'错误 [英] Getting a 'No thread-bound request found' error from spring in my web app

问题描述

我在我的web应用程序中收到'没有线程绑定的请求'错误，希望得到一些帮助。
我尝试使用struts2 + spring + hibernate，并使用spring来管理hibernate会话工厂，并将hibernate会话注入到struts动作中。我希望这是有道理的。
当应用程序启动时，没有错误，但是当我发出第一个Web请求时，它会弹出'找不到线程绑定请求'错误。
这里是我的spring配置：

 <？xml version =1.0encoding =UTF-8？ > 
<！DOCTYPE beans PUBLIC -  // SPRING // DTD BEAN 2.0 // ENhttp://www.springframework.org/dtd/spring-beans-2.0.dtd\"> 
< beans> 
< bean id =hibernateSessionFactoryscope =singleton
 class =org.springframework.orm.hibernate3.LocalSessionFactoryBean> 
< property name =configLocationvalue =classpath：hibernate.cfg.xml/> 
< / bean> 
< bean id =hibernateSessionfactory-bean =hibernateSessionFactory
 factory-method =openSessiondestroy-method =closescope =requestclass =org.hibernate.Session /> 
< / beans> 
  

这是我的动作：

  package actions.events; 
 import org.hibernate.Session; 
 
 public class Listing {
 Session session; 
 public void setHibernateSession（Session value）throws Exception 
 {
 session = value; 
} 
 
 public String execute（）{
 returnsuccess; 
 
 
 
 
 
 
 $ b我只有如果我删除'setHibernateSession '函数上面，我没有得到错误，因为大概春天不会创建一个会话，如果行动不需要一个（懒惰实例化）。
 
 
 
以及这里是例外： 
 
 
 无法实例化在命名空间'/ events'中为'Listing'定义的Action，actions.events.Listing创建名为'hibernateSession'的Bean时出错：范围'请求'对当前线程无效;考虑为这个bean定义一个范围代理，如果你打算从一个单例中引用它;嵌套异常是java.lang.IllegalStateException：找不到线程绑定的请求：您是否在实际Web请求之外引用请求属性，或者在原始接收线程之外处理请求？如果实际上在Web请求中运行并仍然收到此消息，则代码可能在DispatcherServlet / DispatcherPortlet之外运行：在这种情况下，请使用RequestContextListener或RequestContextFilter来公开当前请求。 
 com.opensymphony.xwork2.DefaultActionInvocation.createAction（DefaultActionInvocation.java:307）
 com.opensymphony.xwork2.DefaultActionInvocation.init（DefaultActionInvocation.java:388）
 com.opensymphony.xwork2。 DefaultActionProxy.prepare（DefaultActionProxy.java:187）
 org.apache.struts2.impl.StrutsActionProxy.prepare（StrutsActionProxy.java:61）
 org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy（StrutsActionProxyFactory。 java：39）
 com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy（DefaultActionProxyFactory.java:47）
 org.apache.struts2.dispatcher.Dispatcher.serviceAction（Dispatcher.java:478）
 org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction（ExecuteOperations.java:77）
 org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter（StrutsPrepareAndExecuteFilter.java:91）
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:235）
 org.apache.catalin a.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:206）
 com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent（SiteMeshFilter.java:129）
 com.opensymphony.sitemesh.webapp.SiteMeshFilter。 doFilter（SiteMeshFilter.java:77）
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:235）
 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java： 
 org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:233）
 org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:191）
 org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:128）
 org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:102）
 org.apache.catalina。 core.StandardEngineValve.invoke（StandardEngineValve.java:109）
 org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:293）
 org.apache.coyote.http11.Http11Proc essor.process（Http11Processor.java:849）
 org.apache.coyote.http11.Http11Protocol $ Http11ConnectionHandler.process（Http11Protocol.java:583）
 org.apache.tomcat.util.net.JIoEndpoint $ Worker.run（JIoEndpoint.java:454）
 java.lang.Thread.run（Unknown Source）
  
哦，而且kicker是我的web.xml  具有必要的上下文监听器，所以http请求应该被struts识别：
 <？xml version =1.0encoding =UTF-8？> 
< web-app ... 
 ... 
< listener> 
< listener-class> org.springframework.web.context.ContextLoaderListener< / listener-class> 
< / listener> 
 ... 
< / web-app> 
  
 
 
解决方案
要使用没有Spring MVC的请求范围，您应该声明web.xml中的 RequestContextListener （参见 3.5.4.1。初始网络配置）： 
 
 
 < web应用程序> 
 ... 
< listener> 
< listener-class> 
 org.springframework.web.context.request.RequestContextListener 
< / listener-class> 
< / listener> 
 ... 
< / web-app> 
  
 
I'm getting a 'No thread-bound request found' error in my web app and hoping to get some help.
I'm trying to use struts2 + spring + hibernate, and use spring to manage the hibernate session factory, and inject hibernate sessions into my struts actions. I hope that made sense.
When the app starts up, there are no errors, but when i make the first web request it bombs out with the 'No thread-bound request found' error.
Here's my spring config:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
  <bean id="hibernateSessionFactory" scope="singleton"
    class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="configLocation" value="classpath:hibernate.cfg.xml" />
  </bean>
  <bean id="hibernateSession" factory-bean="hibernateSessionFactory"
    factory-method="openSession" destroy-method="close" scope="request" class="org.hibernate.Session" />
</beans>
Here's my action:
package actions.events;
import org.hibernate.Session;

public class Listing {
  Session session;
  public void setHibernateSession(Session value) throws Exception
  {
    session = value;
  }

  public String execute() {
    return "success";
  }
}
My only lead is that if i remove the 'setHibernateSession' function above, i don't get the error because presumably spring doesn't bother creating a session if the action doesn't need one (lazy instantiation).

And here's the exception:
Unable to instantiate Action, actions.events.Listing, defined for 'Listing' in namespace '/events'Error creating bean with name 'hibernateSession': Scope 'request' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:307)
com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:388)
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:187)
org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:47)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:478)
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Unknown Source)
Oh and the kicker is that my web.xml does have the necessary context listener, so the http request should be recognised by struts:
<?xml version="1.0" encoding="UTF-8"?>
<web-app ...
  ...
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  ...
</web-app>

解决方案
To use request scope without Spring MVC, you should declare RequestContextListener in web.xml (see 3.5.4.1. Initial web configuration):
<web-app>
  ...
  <listener>
    <listener-class>
        org.springframework.web.context.request.RequestContextListener
    </listener-class>
  </listener>
  ...
</web-app>


                        
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