Spring Integration通过出站网关递归获取FTP文件

Question

我尝试了出站网关，如:
中所述

https://github.com/spring-projects/spring-integration-samples/blob/master/basic/ftp/src/test/resources/meta-inf/spring/integration/ftpoutboundgatewaysample-context.xml
和
http://forum.spring.io/forum/spring-projects/integration/104612-inbound-ftp-polling-sub-directories？p=604430#post604430

我的配置：

<bean id="ftpSessionFactory"
    class="org.springframework.integration.ftp.session.DefaultFtpSessionFactory">
    <property name="host" value="127.0.0.1"/>
    <property name="port" value="21"/>
    <property name="username" value="Administrator"/>
    <property name="password" value="SgtSpeedy1"/>
    <property name="fileType" value="2"/>
    <property name="clientMode" value="2" />
</bean>

<int-ftp:outbound-gateway id="gatewayLS"
    cache-sessions="false"
    session-factory="ftpSessionFactory"
    request-channel="inbound"
    command="ls"
    command-options=""
    expression="'/images/*/*'"
    reply-channel="toSplitter"/>

<int:channel id="toSplitter" />
<int-stream:stdout-channel-adapter channel="toSplitter" append-newline="true"/>

我看不出我错过了什么。有人能帮忙吗？

附言。我使用的是Spring Integration 2.2.6，没有升级到4.0.2（最新版本）的选项，因为我使用的是一个框架。否则我会对网关使用-r选项！

Answer 1

我刚刚用foo/foo/bar/qux.txt和foo/foo/baz/fiz.txt测试了

<int-ftp:outbound-gateway id="gatewayLS"
    session-factory="ftpSessionFactory"
    request-channel="inbound"
    command="ls"
    command-options="-1"
    expression="'foo/*/*'"
    reply-channel="toSplitter"/>

而且效果很好；不出所料...

11:34:55.983 DEBUG[main]...[Payload ArrayList content=[fiz.txt,qux.txt]]...