我正在使用 Spring Boot 创建一个 Spring Integration 原型。
我有一个接受控制台输入并将其发送到单独的套接字/tcp 应用程序的“集线器”。
tcp 应用程序回显它在对集线器的回复中发送的内容。
然后集线器获取 tcp 响应并将其发送到单独的 restful/http 应用程序。http 应用程序回显发送回集线器的内容。
我被困在集线器的 int-http:outbound-gateway 上,它向 http 发送请求。当我省略“回复通道”时,我可以输入不止一位文本并发送到 tcp 应用程序。该回复被转发到 http 应用程序并打印在控制台中。但是,当我包含回复通道时,我可以向 tcp 应用程序发送一条消息(http 应用程序接收它),然后集线器应用程序“停止”;我在控制台中输入消息,点击“输入”,但没有任何反应。
这是我的配置:
<!-- TO tcp application/server -->
<int:channel id="input" />
<int:gateway id="simple.gateway"
service-interface="com.foo.SimpleGateway"
default-request-channel="input"/>
<int-ip:tcp-connection-factory id="client"
type="client"
host="localhost"
port="4444"
single-use="true"
so-timeout="10000"/>
<int-ip:tcp-outbound-gateway id="outGateway"
request-channel="input"
reply-channel="clientBytes2StringChannel"
connection-factory="client"
request-timeout="10000"
reply-timeout="10000"/>
<int:object-to-string-transformer id="clientBytes2String"
input-channel="clientBytes2StringChannel"
output-channel="broadcast.channel" />
<int:channel id="broadcast.channel" />
<int:recipient-list-router id="tcp.broadcast.list"
input-channel="broadcast.channel">
<int:recipient channel="to.http" />
<!-- other channels to broadcast to -->
</int:recipient-list-router>
<!-- TO HTTP restful endpoint -->
<!-- this sends the requests -->
<int:channel id="to.http" />
<!-- <int-http:outbound-gateway id="http-outbound-gateway" -->
<!-- request-channel="to.http" -->
<!-- url="http://localhost:8080/howdy?message={msg}" -->
<!-- http-method="GET" -->
<!-- expected-response-type="java.lang.String" -->
<!-- charset="UTF-8"> -->
<!-- <int-http:uri-variable name="msg" expression="payload"/> -->
<!-- </int-http:outbound-gateway> -->
<int-http:outbound-gateway id="http-outbound-gateway"
request-channel="to.http"
url="http://localhost:8080/howdy?message={msg}"
http-method="GET"
expected-response-type="java.lang.String"
charset="UTF-8"
reply-channel="from.http.pubsub.channel">
<int-http:uri-variable name="msg" expression="payload"/>
</int-http:outbound-gateway>
<!-- http://docs.spring.io/spring-integration/reference/html/messaging-endpoints-chapter.html -->
<int:publish-subscribe-channel id="from.http.pubsub.channel" />
<bean id="inboundHTTPPrinterService"
class="com.foo.service.InboundHTTPPrinterService"/>
<int:service-activator id="inboutdHttpPrintServiceActivator"
ref="inboundHTTPPrinterService"
input-channel="from.http.pubsub.channel"
method="printFromHttp"/>
</beans>
在其最终形式中,我希望在某处打印 HTTP 响应并转发到单独的 AMQP 应用程序。