[英]Re downloading of message when using spring integration inbound channel adapter
[英]How to check whether the SFTP connection is successful or not when using Spring Integration for Inbound Adapter
我正在使用Spring Integration將xml文件從SFTP傳輸到本地。 我使用了Spring Community提供的代碼。
主類文件
public class SFTPMain {
public static void main(String[] args) {
ConfigurableApplicationContext context =
new ClassPathXmlApplicationContext("/SftpInboundReceiveSample-context.xml", SftpInboundReceiveSample.class);
SftpInboundReceiveSample sftp = context.getBean("sftpService", SftpInboundReceiveSample.class);
sftp.setContext(context);
try {
sftp.receiveFile();
} catch (Exception e) {
System.out.println(e);
} finally {
context.close();
}
}
}
服務等級
@Component("sftpService")
public class SftpInboundReceiveSample {
public ConfigurableApplicationContext getContext() {
return context;
}
public void setContext(ConfigurableApplicationContext context) {
this.context = context;
}
ConfigurableApplicationContext context;
public void receiveFile(){
try {
PollableChannel localFileChannel = context.getBean("receiveChannel", PollableChannel.class);
SourcePollingChannelAdapter adapter = context.getBean(SourcePollingChannelAdapter.class);
adapter.start();
System.out.println("Adapter started...");
Message<?> received = localFileChannel.receive();
System.out.println("Received first file message: " + received);
MessageHeaders header= received.getHeaders();
header.getTimestamp();
}
finally {
}
}
}
XML文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:int="http://www.springframework.org/schema/integration"
xmlns:int-sftp="http://www.springframework.org/schema/integration/sftp"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/integration
http://www.springframework.org/schema/integration/spring-integration.xsd
http://www.springframework.org/schema/integration/sftp
http://www.springframework.org/schema/integration/sftp/spring-integration-sftp.xsd">
<import resource="SftpSampleCommon.xml" />
<bean id="sftpSessionFactory"
class="org.springframework.integration.file.remote.session.CachingSessionFactory">
<constructor-arg ref="defaultSftpSessionFactory" />
</bean>
<bean id="defaultSftpSessionFactory"
class="org.springframework.integration.sftp.session.DefaultSftpSessionFactory">
<property name="host" value="${sftp.host}"/>
<property name="password" value="${sftp.password}"/>
<property name="port" value="${sftp.port}"/>
<property name="user" value="${sftp.username}"/>
</bean>
<int-sftp:inbound-channel-adapter id="sftpInbondAdapter"
session-factory="sftpSessionFactory" channel="receiveChannel"
filename-pattern="*" remote-directory="/loblawln"
local-directory="D:/local-dir"
auto-create-local-directory="true" temporary-file-suffix=".writing"
delete-remote-files="false">
<int:poller fixed-rate="1000" max-messages-per-poll="1" />
</int-sftp:inbound-channel-adapter>
<int:channel id="receiveChannel">
<int:queue />
</int:channel>
</beans>
還想知道輪詢是否是強制性的,因為我將通過CRON作業使用適配器,該適配器每天僅對SFTP服務器執行一次ping操作。
首先, <poller>
支持cron
。 因此,我認為沒有理由引入一些額外的CRON job
。
從另一方面來看, <poller>
也具有error-channel
選項。 這樣一來,您可以捕獲輪詢流程中的任何問題,包括SFTP連接錯誤。
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