我在ftp位置删除了一个文件，该文件应由ftp-inbound-adapter选取。该文件保存到本地目录。这个本地目录依次由spring file-inbound-adapter轮询。 filenamegenerator bean在file-inbound-adapter中使用，并动态决定目标。我还发布了另一个关于本地目录中的文件未被删除的问题。这是我面临的问题。 这是我的整个配置
<util:properties id="someid" location="classpath:config/config.properties"/>
<mvc:annotation-driven />
<context:component-scan base-package="com.dms" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<context:property-placeholder location="classpath:config/jdbc.properties,classpath:config/config.properties,classpath:config/ftp.properties"/>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource"
>
<property name="driverClassName" value="${jdbc.driverClassName}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop>
</props>
</property>
<property name="packagesToScan">
<list>
<value>com.dms.entity</value>
</list>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- setting maximum upload size -->
<property name="maxUploadSize" value="10485760" />
</bean>
<!-- scheduler to pickup temp folder files to permanent location -->
<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="simpleTrigger" />
</list>
</property>
</bean>
<bean id="dmsFilesDetectionJob" class="com.dms.scheduler.job.DMSFilesDetectionJob">
</bean>
<bean id="dmsFilesDetectionJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject" ref="dmsFilesDetectionJob" />
<property name="targetMethod" value="pollTempFolder" />
<property name="concurrent" value="false" />
</bean>
<bean id="simpleTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">
<property name="jobDetail" ref="dmsFilesDetectionJobDetail" />
<!-- <property name="cronExpression" value="1 * * * * ?" /> -->
<property name="cronExpression" value="0 0/1 * * * ?" />
</bean>
<bean id="fileNameGenerator" class="com.dms.util.FileNameGenerator"/>
<int-file:inbound-channel-adapter id="filesIn" directory="file:${paths.root}" channel="abc" filter="compositeFilter" >
<int:poller id="poller" fixed-delay="5000" />
</int-file:inbound-channel-adapter>
<int:channel id="abc"/>
<bean id="compositeFilter" class="org.springframework.integration.file.filters.CompositeFileListFilter">
<constructor-arg>
<list>
<!-- Ensures that the file is whole before processing it -->
<bean class="com.dms.util.CustomFileFilter"/>
<!-- Ensures files are picked up only once from the directory -->
<bean class="org.springframework.integration.file.filters.AcceptOnceFileListFilter" />
</list>
</constructor-arg>
</bean>
<int-file:outbound-channel-adapter channel="abc" id="filesOut"
directory-expression="@outPathBean.getPath()"
delete-source-files="true" filename-generator="fileNameGenerator" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="jsonMessageConverter"/>
</list>
</property>
</bean>
<bean id="jsonMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<!-- <property name="prefixJson" value="false"/> -->
<!-- <property name="objectMapper">
<bean class="com.dms.util.HibernateAwareObjectMapper" />
</property> -->
<property name="supportedMediaTypes" value="application/json"/>
</bean>
<bean id="ftpClientFactory"
class="org.springframework.integration.ftp.session.DefaultFtpSessionFactory">
<property name="host" value="${ftp.ip}"/>
<property name="port" value="${ftp.port}"/>
<property name="username" value="${ftp.username}"/>
<property name="password" value="${ftp.password}"/>
<property name="clientMode" value="0"/>
<property name="fileType" value="2"/>
<property name="bufferSize" value="100000"/>
</bean>
<int-ftp:outbound-channel-adapter id="ftpOutbound"
channel="ftpChannel"
session-factory="ftpClientFactory"
charset="UTF-8"
remote-file-separator="/"
auto-create-directory="true"
remote-directory="."
use-temporary-file-name="true"
auto-startup="true"
/>
<int-ftp:inbound-channel-adapter id="ftpInbound"
channel="ftpChannel"
session-factory="ftpClientFactory"
charset="UTF-8"
local-directory="file:${paths.root}"
delete-remote-files="true"
temporary-file-suffix=".writing"
remote-directory="."
filename-pattern="${file.char}*${file.char}"
preserve-timestamp="true"
auto-startup="true">
<int:poller fixed-rate="1000"/>
</int-ftp:inbound-channel-adapter>
<int:channel id="ftpChannel" />
这是我得到的错误
18:02:34.655 E|LoggingHandler |org.springframework.messaging.MessageDeliveryException: Dispatcher has no subscribers for channel 'org.springframework.web.context.WebApplicationContext:/DMS/DMS-dispatcher.ftpChannel'.
此异常不会每次都出现。 正如您所看到的，我添加了自动启动=＆＃34; true＆＃34;。已经为通道和适配器使用了唯一的ID。请告诉我这里有什么问题！
由于
答案 0 :(得分：0)
首先，您的整合流程尚未明确。但我发现你的问题是针对这个
<int-ftp:inbound-channel-adapter id="ftpInbound" channel="ftpChannel"
如果没有人订阅ftpChannel SubscribableChannel。
因此，该适配器启动他的工作并向该频道发送消息，但是...... Dispatcher has no subscribers。
尝试解决该问题，并找出如何继续。
修改
不确定你在我的回答中发现的内容如此糟糕，以至于它迫使你进行投票。反正。
有一些phase问题before，但正如您所看到的那样已在版本4.1中得到修复。
所以，要立即达到立即修复，你应该这样做：
phase="0x7fffffff" // Integer.MAX_VALUE
phase为0，因此入站通道适配器可能在出站通道适配器之前启动。
或者只升级到最新的Spring Integration！
答案 1 :(得分：0)
我只需要使用文件入站通道适配器处理此问题。问题是间歇性的，只有在启动时才会出现。我认为带有轮询器的适配器可以在Spring Integration完全初始化之前开始引入消息。
我的修复是在启动时禁用适配器。适配器的细节不是那么重要，除了它有一个id并设置为不自动启动：
<!--
Read files from an "inbox" directory, placing them on an "inbox" channel...
-->
<int-file:inbound-channel-adapter id="inboxScanner"
directory="$import{inbox}"
auto-create-directory="true"
channel="fileInbox"
prevent-duplicates="false"
auto-startup="false">
<int:poller fixed-rate="$import{inbox.scan.rate.seconds}"
time-unit="SECONDS"
max-messages-per-poll="$import{inbox.max.imports.per.scan}"/>
</int-file:inbound-channel-adapter>
然后我进入Spring的应用程序生命周期事件，一旦应用程序上下文完成创建（或刷新），我告诉适配器启动：
<!--
Only start the scanner after the application has finished initializing...
-->
<int-event:inbound-channel-adapter event-types="org.springframework.context.event.ContextRefreshedEvent"
channel="contextRefreshEvents"/>
<int:publish-subscribe-channel id="contextRefreshEvents"/>
<int:outbound-channel-adapter channel="contextRefreshEvents"
expression="@inboxScanner.start()" />
＆＃34;事件＆＃34;组件来自spring-integration-event。