在春季集成中，我有一个简单的tcp客户管道：一个网关，一个tcp出站网关，一个服务激活器以及一个错误通道。在tcp-connection-
factory中有一个简单的拦截器。错误通道非常简单，我使用此过滤器实现了tcp-connection-event-inbound-channel-
adapter：

• org.springframework.integration.ip.tcp.connection.TcpConnectionExceptionEvent。

所以我的错误处理程序非常简单，看起来像这样：

public class TcpErrorHandler {
    public void onException(){
        System.out.println("Exception!!! ");
    } 
}

它之所以有效，是因为当我有一个Socket close Exception（服务器端我关闭了连接）时，应用程序会写“ Exception
!!!”。到控制台，但是另一方面，当我有连接超时异常时，它不起作用。我的问题是：如何获得所有最相关的例外：

• 运行时套接字关闭异常
• 连接超时异常
• 其他例外

有没有捕捉机制？

这是我的bean配置中的一个片段：

<!-- Client side -->

<int:gateway id="gw"
    service-interface="hu.gmxdev.climaxreplica.service.SimpleGateway"
    default-request-channel="outputchannel" />

<int-ip:tcp-connection-factory id="client"
    type="client" host="localhost" port="10001" single-use="true"
    so-timeout="2000" deserializer="climaxDeserializer"
    interceptor-factory-chain="customInterceptorFactoryChain"/>

<int:channel id="outputchannel" />

<int-ip:tcp-outbound-gateway id="outGateway"
    request-channel="outputchannel" reply-channel="replychannel"
    connection-factory="client" request-timeout="2000" reply-timeout="2000" />

<int:service-activator input-channel="replychannel"
    method="reply" ref="echoService" id="serviceactivator">
</int:service-activator>

<int:channel id="replychannel"></int:channel>

<bean id="customInterceptorFactoryChain"
        class="org.springframework.integration.ip.tcp.connection.TcpConnectionInterceptorFactoryChain">
        <property name="interceptors">
            <array>
                <bean class="hu.gmxdev.climaxreplica.service.CustomInterceptorFactory"/>
            </array>
        </property>
</bean>

<!-- Error channel -->

<int-ip:tcp-connection-event-inbound-channel-adapter id="event"
    error-channel="errorChannel"
    event-types="org.springframework.integration.ip.tcp.connection.TcpConnectionExceptionEvent" />

<int:channel id="errorChannel"></int:channel>

<int:service-activator ref="tcpErrorHandler" method="onException"
    input-channel="errorChannel">
</int:service-activator>

这是我的错误处理程序：

public class TcpErrorHandler {
    @Autowired
    private ApplicationContext appContext;

    public void onException(TcpConnectionExceptionEvent event){
        MainService mainService = appContext.getBean(MainService.class);
        mainService.setSuccess(3);
        System.out.println("Exception!!! ");
        System.out.println(event.getCause().getMessage());
    }
}

拦截器在这里：

public class CustomInterceptor extends TcpConnectionInterceptorSupport{

    public CustomInterceptor () {
        System.out.println("catched_constructor1");
    }

    public CustomInterceptor (ApplicationEventPublisher applicationEventPublisher) {
        super(applicationEventPublisher);
        System.out.println("catched_constructor");
    }

    @Override
    public boolean onMessage(Message<?> message) {
        System.out.println("catched_message");
        return super.onMessage(message);
    }


    @Override
    public void send(Message<?> message){
        System.out.println("catched_send");
        MessageHeaders mh = message.getHeaders();
        try {
            super.send(message);
        }
        catch (Exception e) {
            System.out.println("catched_send_exception");
        }
    }

    @Override
    public void close() {
        String id = getConnectionId();
        System.out.println("catched_closed" + id);
        super.close();
    }

}

和我的“呼叫者”：

success = gateway.send("fooooooo");