如何在带有组件注释的bean中使用会话或请求范围的bean？

问题描述

在先前的问题How to create a working TCP Server socket in spring boot and how to handle the incoming message?中 我陷入了弹簧集成和处理TCP套接字连接的一些问题。 这个问题解决了，但是不幸的是，出现了一个新问题。 我从客户端收到消息-到目前为止一切顺利-但是现在我尝试使用所有现成​​的业务逻辑来处理消息，如下所示：

这是处理传入的套接字消息的类。通过Spring集成实现

import homebrew.something.MessageProcessor;
import lombok.extern.log4j.Log4j2;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.integration.annotation.MessageEndpoint;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.stereotype.Component;

@Log4j2
@Component
@MessageEndpoint
public class ClientSocketHandler {
    
    @Autowired
    private MessageProcessor messageProcessor;

    @ServiceActivator(inputChannel = "toTcp")
    public byte[] handleMessage(byte[] msg) {
        
        byte[] msgToSend = messageProcessor.processMessage(msg);
        
        return msgToSend;
    }
}

这是绑定到HTTP会话的常规传输对象类

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.context.annotation.Scope;
import org.springframework.context.annotation.ScopedProxyMode;

@Component
@Scope(value = "session",proxyMode = ScopedProxyMode.TARGET_CLASS)
public class ASimpleTransferObject {
    
    // Some fields,// some getters and
    // some setters
    
}

这是我们的服务，可处理来自TCP套接字的传入消息

import lombok.extern.log4j.Log4j2;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


@Log4j2
@Service
public class MessageProcessor {
    
    @Autowired
    private ASimpleTransferObject transferObject;
    
    public byte[] processMessage(byte[] msg) {
        
        // Do something with the message
        
        return message;
        
    }
}

如果我正在从客户端向服务器发送消息，则会引发此异常：

ERROR org.springframework.integration.ip.tcp.connection.TcpNetConnection - Exception sending message: Genericmessage [payload=byte[0],headers={ip_tcp_remotePort=XXXX,ip_connectionId=view-localhost:XXXXX:YYYYY:AAAA-BBBB-CCCC,ip_localInetAddress=/127.0.0.1,ip_address=127.0.0.1,id=fd33bdd9-1af1-051f-3106-3f08af7bdd16,ip_hostname=view-localhost,timestamp=87236587436545}]
org.springframework.messaging.MessageHandlingException: error occurred during processing message in 'MethodInvokingMessageProcessor' [org.springframework.integration.handler.MethodInvokingMessageProcessor@1b067e83]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.transferObject': Scope 'session' 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: In this case,use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.integration.support.utils.IntegrationUtils.wrapInHandlingExceptionIfNecessary(IntegrationUtils.java:192) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.MethodInvokingMessageProcessor.processMessage(MethodInvokingMessageProcessor.java:111) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.ServiceActivatingHandler.handleRequestMessage(ServiceActivatingHandler.java:104) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:134) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:62) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.dispatcher.Abstractdispatcher.tryOptimizeddispatch(Abstractdispatcher.java:115) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.dispatcher.Unicastingdispatcher.dodispatch(Unicastingdispatcher.java:133) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.dispatcher.Unicastingdispatcher.dispatch(Unicastingdispatcher.java:106) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:72) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:570) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.messaging.core.GenericmessagingTemplate.doSend(GenericmessagingTemplate.java:187) ~[spring-messaging-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.messaging.core.GenericmessagingTemplate.doSendAndReceive(GenericmessagingTemplate.java:233) ~[spring-messaging-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.messaging.core.GenericmessagingTemplate.doSendAndReceive(GenericmessagingTemplate.java:47) ~[spring-messaging-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.messaging.core.AbstractMessagingTemplate.sendAndReceive(AbstractMessagingTemplate.java:46) ~[spring-messaging-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.integration.core.MessagingTemplate.sendAndReceive(MessagingTemplate.java:97) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.gateway.MessagingGatewaySupport.doSendAndReceive(MessagingGatewaySupport.java:522) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.gateway.MessagingGatewaySupport.sendAndReceiveMessage(MessagingGatewaySupport.java:493) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.ip.tcp.TcpInboundGateway.doOnMessage(TcpInboundGateway.java:127) ~[spring-integration-ip-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.ip.tcp.TcpInboundGateway.onMessage(TcpInboundGateway.java:105) ~[spring-integration-ip-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.ip.tcp.connection.TcpNetConnection.run(TcpNetConnection.java:216) [spring-integration-ip-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
    at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.transferObject': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request,use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:368) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:202) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$DynamicAdvisedInterceptor.intercept(cglibAopProxy.java:675) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at homebrew.something.ASimpleTransferObject$$EnhancerBySpringcglib$$45c84ec3.getSessionKey(<generated>) ~[classes/:?]
    ....
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.invokeJoinpoint(cglibAopProxy.java:771) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.proceed(cglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.interceptor.CustomizableTraceInterceptor.invokeUnderTrace(CustomizableTraceInterceptor.java:256) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.interceptor.AbstractTraceInterceptor.invoke(AbstractTraceInterceptor.java:131) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.proceed(cglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.proceed(cglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$DynamicAdvisedInterceptor.intercept(cglibAopProxy.java:691) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
    at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
    at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:129) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:112) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:55) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:386) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:92) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:117) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:375) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:171) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:156) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.invokeExpression(MessagingMethodInvokerHelper.java:637) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.fallbackToInvokeExpression(MessagingMethodInvokerHelper.java:630) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.processInvokeExceptionAndFallbackToExpressionIfAny(MessagingMethodInvokerHelper.java:614) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.invokeHandlerMethod(MessagingMethodInvokerHelper.java:585) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.processInternal(MessagingMethodInvokerHelper.java:477) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.process(MessagingMethodInvokerHelper.java:355) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.MethodInvokingMessageProcessor.processMessage(MethodInvokingMessageProcessor.java:108) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    ... 21 more
Caused by: java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request,use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.context.request.SessionScope.get(SessionScope.java:55) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:356) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:202) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$DynamicAdvisedInterceptor.intercept(cglibAopProxy.java:675) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at homebrew.something.ASimpleTransferObject$$EnhancerBySpringcglib$$45c84ec3.getSessionKey(<generated>) ~[classes/:?]
    ....
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.invokeJoinpoint(cglibAopProxy.java:771) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.proceed(cglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.interceptor.CustomizableTraceInterceptor.invokeUnderTrace(CustomizableTraceInterceptor.java:256) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.interceptor.AbstractTraceInterceptor.invoke(AbstractTraceInterceptor.java:131) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.proceed(cglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$cglibMethodInvocation.proceed(cglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.cglibAopProxy$DynamicAdvisedInterceptor.intercept(cglibAopProxy.java:691) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    ....
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
    at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
    at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:129) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:112) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:55) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:386) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:92) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:117) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:375) ~[spring-expression-5.2.7.RELEASE.jar:5.2.7.RELEASE]
    at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:171) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:156) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.invokeExpression(MessagingMethodInvokerHelper.java:637) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.fallbackToInvokeExpression(MessagingMethodInvokerHelper.java:630) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.processInvokeExceptionAndFallbackToExpressionIfAny(MessagingMethodInvokerHelper.java:614) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.invokeHandlerMethod(MessagingMethodInvokerHelper.java:585) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.processInternal(MessagingMethodInvokerHelper.java:477) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.support.MessagingMethodInvokerHelper.process(MessagingMethodInvokerHelper.java:355) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    at org.springframework.integration.handler.MethodInvokingMessageProcessor.processMessage(MethodInvokingMessageProcessor.java:108) ~[spring-integration-core-5.3.2.RELEASE.jar:5.3.2.RELEASE]
    ... 21 more

我已经准备尝试将RequestContextListener放入我的spring配置中

@Bean
public RequestContextListener requestContextListener() {
    return new RequestContextListener();
}

但这并没有真正的帮助。再次抛出相同的异常。

有没有解决该问题的方法？

非常感谢！

解决方法

由于TCP连接与HTTP连接完全不相关，因此绝对不可能。当我们处理从HTTP客户端发起的HTTP连接时，以及在我们的HTTP服务器中具有会话管理功能时（例如， Srvlet容器。

TCP连接的启动方式完全不同，并且由于没有与该会话绑定的HTTP请求，因此没有钩子可以从管理器进行HTTP会话。

您可能需要了解有关HTTP及其会话状态的更多信息...

要点是TCP连接是在对HTTP一无所知的线程中完成的，只有在与HTTP线程和请求中的某些客户端会话令牌进行交互时，我们才能初始化会话范围。

我不确定如何为您提供帮助，但是您无法找到想要的东西，并且您无法在HTTP请求之外使用该会话范围。您需要重新考虑已经适合您的TCP请求的其他业务逻辑。