我创建了一个使用Spring MVC通过网页添加ftp服务器的应用程序。当我添加包含详细信息的服务器时，它将开始在服务器上轮询特定csv文件的目录流，一旦该文件存在，它将把它拉到我的本地文件夹，然后创建一个方法来读取该csv文件并生成一个新的csv将发送回服务器，现在已完成，我的问题是，当我添加新的ftp服务器进行轮询并在第二台服务器上找到一个csv文件时，应用程序将该文件拉到本地它应该这样做，但是两个csv文件都再次触发了处理方法，而它只应针对第二个服务器，因为已经为第一台服务器触发了，所以当我添加第二个服务器时，又为服务器1生成了另一个文件然后发送回ftp，将第二个服务器的新文件发送到第二个ftp，最后我将两个文件发送给第一个服务，一个文件发送给第二个服务器，以下是该应用的编码和输出consol，请协助查明我的问题。
@Configuration
@EnableIntegration
@ComponentScan
public class FTIntegration {
public static final String TIMEZONE_UTC = "UTC";
public static final String TIMESTAMP_FORMAT_OF_FILES = "yyyyMMddHHmmssSSS";
public static final String TEMPORARY_FILE_SUFFIX = ".part";
public static final int POLLER_FIXED_PERIOD_DELAY = 5000;
public static final int MAX_MESSAGES_PER_POLL = 100;
//private static final Logger LOG = LoggerFactory.getLogger(FTIntegration.class);
private static final Logger LOG1 = Logger.getLogger(FTIntegration.class);
private static final String CHANNEL_INTERMEDIATE_STAGE = "intermediateChannel";
private static final String OUTBOUND_CHANNEL = "outboundChannel";
/* pulling the server config from postgres DB*/
private final BranchRepository branchRepository;
@Autowired
private CSVToCSVNoQ csvToCSVNoQ;
@Value("${app.temp-dir}")
private String localTempPath;
public FTIntegration(BranchRepository branchRepository) {
this.branchRepository = branchRepository;
}
@Bean
public Branch myBranch(){
return new Branch();
}
/**
* The default poller with 5s, 100 messages, RotatingServerAdvice and transaction.
*
* @return default poller.
*/
@Bean(name = PollerMetadata.DEFAULT_POLLER)
public PollerMetadata poller(){
return Pollers
.fixedDelay(POLLER_FIXED_PERIOD_DELAY)
.maxMessagesPerPoll(MAX_MESSAGES_PER_POLL)
.transactional()
.get();
}
/**
* The direct channel for the flow.
*
* @return MessageChannel
*/
@Bean
public MessageChannel stockIntermediateChannel() {
return new DirectChannel();
}
/**
* Get the files from a remote directory. Add a timestamp to the filename
* and write them to a local temporary folder.
*
* @return IntegrationFlow
*/
@Bean
public PropertiesPersistingMetadataStore store() {
PropertiesPersistingMetadataStore store = new PropertiesPersistingMetadataStore();
return store;
}
public IntegrationFlow fileInboundFlowFromFTPServer(Branch myBranch) throws IOException {
final FtpInboundChannelAdapterSpec sourceSpecFtp = Ftp.inboundAdapter(createNewFtpSessionFactory(myBranch))
.preserveTimestamp(true)
//.patternFilter("*.csv")
.maxFetchSize(MAX_MESSAGES_PER_POLL)
.remoteDirectory(myBranch.getFolderPath())
.regexFilter("FEFOexport"+myBranch.getBranchCode()+".csv")
.deleteRemoteFiles(true)
.localDirectory(new File(myBranch.getBranchCode()))
.temporaryFileSuffix(TEMPORARY_FILE_SUFFIX)
/*.localFilenameExpression(new FunctionExpression<String>(s -> {
final int fileTypeSepPos = s.lastIndexOf('.');
return DateTimeFormatter
.ofPattern(TIMESTAMP_FORMAT_OF_FILES)
.withZone(ZoneId.of(TIMEZONE_UTC))
.format(Instant.now())
+ "_"
+ s.substring(0,fileTypeSepPos)
+ s.substring(fileTypeSepPos);
}))*/;
// Poller definition
final Consumer<SourcePollingChannelAdapterSpec> stockInboundPoller = endpointConfigurer -> endpointConfigurer
.id("stockInboundPoller")
.autoStartup(true)
.poller(poller());
IntegrationFlow flow = IntegrationFlows
.from(sourceSpecFtp, stockInboundPoller)
.transform(File.class, p ->{
// log step
LOG1.info("flow=stockInboundFlowFromAFT, message=incoming file: " + p);
return p;
})
.channel(CHANNEL_INTERMEDIATE_STAGE)
.handle(m -> {
try {
this.csvToCSVNoQ.writeCSVfinal("test", myBranch.getBranchCode() + "/final" + myBranch.getBranchCode() + ".csv", myBranch.getBranchCode() + "/FEFOexport" + myBranch.getBranchCode() + ".csv");
LOG1.info("Writing final file .csv " + m);
} catch (IOException e) {
e.printStackTrace();
}
})
//.handle(m -> this.csvToCSVNoQ.writeCSVfinal(m.getPayload(),m.getHeaders().get("csv", "FEFOexport"+myBranch.getBranchCode()+".csv")))
.get();
return flow;
}
@Bean
public IntegrationFlow stockIntermediateStageChannel() {
IntegrationFlow flow = IntegrationFlows
.from(CHANNEL_INTERMEDIATE_STAGE)
.transform(p -> {
//log step
LOG1.info("flow=stockIntermediateStageChannel, message=rename file: " + p);
return p;
})
//TODO
.channel(new NullChannel())
.get();
return flow;
}
/*
* Creating the outbound adaptor to send files from local to FTP server
*
* */
public IntegrationFlow localToFtpFlow(Branch myBranch){
return IntegrationFlows.from(Files.inboundAdapter(new File(myBranch.getBranchCode()))
.filter(new ChainFileListFilter<File>()
.addFilter(new RegexPatternFileListFilter("final" + myBranch.getBranchCode() +".csv"))
.addFilter(new FileSystemPersistentAcceptOnceFileListFilter(new SimpleMetadataStore(), "foo"))),
e -> e.poller(Pollers.fixedDelay(10_000)))
.transform( p ->{
LOG1.info("Sending file " + p + " to FTP branch " + myBranch.getBranchCode());
return p;
})
.log()
.handle(Ftp.outboundAdapter(createNewFtpSessionFactory(myBranch),FileExistsMode.REPLACE)
.useTemporaryFileName(true)
.autoCreateDirectory(false)
.remoteDirectory(myBranch.getFolderPath()))
.get();
}
public DefaultFtpSessionFactory createNewFtpSessionFactory(Branch branch){
final DefaultFtpSessionFactory factory = new DefaultFtpSessionFactory();
factory.setHost(branch.getHost());
factory.setUsername(branch.getUsern());
factory.setPort(branch.getFtpPort());
factory.setPassword(branch.getPassword());
return factory;
}
控制台输出：
Saved Branch : BEY
Hibernate: select branch0_._id as _id1_0_0_, branch0_.branch_code as branch_c2_0_0_, branch0_.folder_path as folder_p3_0_0_, branch0_.ftp_port as ftp_port4_0_0_, branch0_.host as host5_0_0_, branch0_.password as password6_0_0_, branch0_.usern as usern7_0_0_ from branch branch0_ where branch0_._id=?
2018-12-20 07:58:39.218 INFO 6668 --- [nio-8081-exec-5] o.s.integration.channel.DirectChannel : Channel 'application.intermediateChannel' has 2 subscriber(s).
2018-12-20 07:58:39.218 INFO 6668 --- [nio-8081-exec-5] o.s.i.endpoint.EventDrivenConsumer : started 1.org.springframework.integration.config.ConsumerEndpointFactoryBean#1
2018-12-20 07:58:39.218 INFO 6668 --- [nio-8081-exec-5] o.s.i.endpoint.EventDrivenConsumer : Adding {transformer} as a subscriber to the '1.channel#0' channel
2018-12-20 07:58:39.218 INFO 6668 --- [nio-8081-exec-5] o.s.integration.channel.DirectChannel : Channel 'application.1.channel#0' has 1 subscriber(s).
2018-12-20 07:58:39.218 INFO 6668 --- [nio-8081-exec-5] o.s.i.endpoint.EventDrivenConsumer : started 1.org.springframework.integration.config.ConsumerEndpointFactoryBean#0
2018-12-20 07:58:39.229 INFO 6668 --- [nio-8081-exec-5] o.s.i.e.SourcePollingChannelAdapter : started stockInboundPoller
2018-12-20 07:58:39.417 INFO 6668 --- [nio-8081-exec-5] o.s.i.endpoint.EventDrivenConsumer : Adding {message-handler} as a subscriber to the '1o.channel#2' channel
2018-12-20 07:58:39.417 INFO 6668 --- [nio-8081-exec-5] o.s.integration.channel.DirectChannel : Channel 'application.1o.channel#2' has 1 subscriber(s).
2018-12-20 07:58:39.418 INFO 6668 --- [nio-8081-exec-5] o.s.i.endpoint.EventDrivenConsumer : started 1o.org.springframework.integration.config.ConsumerEndpointFactoryBean#1
2018-12-20 07:58:39.418 INFO 6668 --- [nio-8081-exec-5] o.s.i.endpoint.EventDrivenConsumer : Adding {transformer} as a subscriber to the '1o.channel#0' channel
2018-12-20 07:58:39.418 INFO 6668 --- [nio-8081-exec-5] o.s.integration.channel.DirectChannel : Channel 'application.1o.channel#0' has 1 subscriber(s).
2018-12-20 07:58:39.418 INFO 6668 --- [nio-8081-exec-5] o.s.i.endpoint.EventDrivenConsumer : started 1o.org.springframework.integration.config.ConsumerEndpointFactoryBean#0
2018-12-20 07:58:39.419 INFO 6668 --- [nio-8081-exec-5] o.s.i.e.SourcePollingChannelAdapter : started 1o.org.springframework.integration.config.SourcePollingChannelAdapterFactoryBean#0
2018-12-20 07:59:41.165 INFO 6668 --- [sk-scheduler-10] o.s.integration.ftp.session.FtpSession : File has been successfully transferred from: /ftp/erbranch/EDMS/FEFO/FEFOexportBEY.csv
2018-12-20 07:59:49.446 INFO 6668 --- [ask-scheduler-1] o.s.i.file.FileReadingMessageSource : Created message: [GenericMessage [payload=BEY\finalBEY.csv, headers={file_originalFile=BEY\finalBEY.csv, id=7f0cccb7-a070-bd4c-d468-977a265ceb2e, file_name=finalBEY.csv, file_relativePath=finalBEY.csv, timestamp=1545285589446}]]
2018-12-20 07:59:49.448 INFO 6668 --- [ask-scheduler-1] o.s.integration.handler.LoggingHandler : GenericMessage [payload=BEY\finalBEY.csv, headers={file_originalFile=BEY\finalBEY.csv, id=d857130a-d4a0-eaeb-19ea-f819924d94e2, file_name=finalBEY.csv, file_relativePath=finalBEY.csv, timestamp=1545285589447}]
2018-12-20 07:59:50.488 INFO 6668 --- [ask-scheduler-1] o.s.integration.ftp.session.FtpSession : File has been successfully transferred to: /ftp/erbranch/EDMS/FEFO/finalBEY.csv.writing
2018-12-20 07:59:50.899 INFO 6668 --- [ask-scheduler-1] o.s.integration.ftp.session.FtpSession : File has been successfully renamed from: /ftp/erbranch/EDMS/FEFO/finalBEY.csv.writing to /ftp/erbranch/EDMS/FEFO/finalBEY.csv
Hibernate: select branch0_._id as _id1_0_, branch0_.branch_code as branch_c2_0_, branch0_.folder_path as folder_p3_0_, branch0_.ftp_port as ftp_port4_0_, branch0_.host as host5_0_, branch0_.password as password6_0_, branch0_.usern as usern7_0_ from branch branch0_
Hibernate: insert into branch (branch_code, folder_path, ftp_port, host, password, usern) values (?, ?, ?, ?, ?, ?)
Hibernate: select currval('branch__id_seq')
Saved Branch : JNB
Hibernate: select branch0_._id as _id1_0_0_, branch0_.branch_code as branch_c2_0_0_, branch0_.folder_path as folder_p3_0_0_, branch0_.ftp_port as ftp_port4_0_0_, branch0_.host as host5_0_0_, branch0_.password as password6_0_0_, branch0_.usern as usern7_0_0_ from branch branch0_ where branch0_._id=?
2018-12-20 08:02:24.966 INFO 6668 --- [nio-8081-exec-8] o.s.integration.channel.DirectChannel : Channel 'application.intermediateChannel' has 3 subscriber(s).
2018-12-20 08:02:24.966 INFO 6668 --- [nio-8081-exec-8] o.s.i.endpoint.EventDrivenConsumer : started 2.org.springframework.integration.config.ConsumerEndpointFactoryBean#1
2018-12-20 08:02:24.966 INFO 6668 --- [nio-8081-exec-8] o.s.i.endpoint.EventDrivenConsumer : Adding {transformer} as a subscriber to the '2.channel#0' channel
2018-12-20 08:02:24.966 INFO 6668 --- [nio-8081-exec-8] o.s.integration.channel.DirectChannel : Channel 'application.2.channel#0' has 1 subscriber(s).
2018-12-20 08:02:24.966 INFO 6668 --- [nio-8081-exec-8] o.s.i.endpoint.EventDrivenConsumer : started 2.org.springframework.integration.config.ConsumerEndpointFactoryBean#0
2018-12-20 08:02:24.966 INFO 6668 --- [nio-8081-exec-8] o.s.i.e.SourcePollingChannelAdapter : started stockInboundPoller
2018-12-20 08:02:24.992 INFO 6668 --- [nio-8081-exec-8] o.s.i.endpoint.EventDrivenConsumer : Adding {message-handler} as a subscriber to the '2o.channel#2' channel
2018-12-20 08:02:24.992 INFO 6668 --- [nio-8081-exec-8] o.s.integration.channel.DirectChannel : Channel 'application.2o.channel#2' has 1 subscriber(s).
2018-12-20 08:02:24.992 INFO 6668 --- [nio-8081-exec-8] o.s.i.endpoint.EventDrivenConsumer : started 2o.org.springframework.integration.config.ConsumerEndpointFactoryBean#1
2018-12-20 08:02:24.992 INFO 6668 --- [nio-8081-exec-8] o.s.i.endpoint.EventDrivenConsumer : Adding {transformer} as a subscriber to the '2o.channel#0' channel
2018-12-20 08:02:24.992 INFO 6668 --- [nio-8081-exec-8] o.s.integration.channel.DirectChannel : Channel 'application.2o.channel#0' has 1 subscriber(s).
2018-12-20 08:02:24.992 INFO 6668 --- [nio-8081-exec-8] o.s.i.endpoint.EventDrivenConsumer : started 2o.org.springframework.integration.config.ConsumerEndpointFactoryBean#0
2018-12-20 08:02:24.992 INFO 6668 --- [nio-8081-exec-8] o.s.i.e.SourcePollingChannelAdapter : started 2o.org.springframework.integration.config.SourcePollingChannelAdapterFactoryBean#0
Hibernate: select branch0_._id as _id1_0_, branch0_.branch_code as branch_c2_0_, branch0_.folder_path as folder_p3_0_, branch0_.ftp_port as ftp_port4_0_, branch0_.host as host5_0_, branch0_.password as password6_0_, branch0_.usern as usern7_0_ from branch branch0_
2018-12-20 08:03:00.225 INFO 6668 --- [ask-scheduler-8] o.s.integration.ftp.session.FtpSession : File has been successfully transferred from: /ftp/erbranch/EDMS/FEFO/FEFOexportJNB.csv
2018-12-20 08:03:00.929 INFO 6668 --- [ask-scheduler-5] o.s.i.file.FileReadingMessageSource : Created message: [GenericMessage [payload=BEY\finalBEY.csv, headers={file_originalFile=BEY\finalBEY.csv, id=6ed554eb-f553-0293-f042-d633155357c0, file_name=finalBEY.csv, file_relativePath=finalBEY.csv, timestamp=1545285780929}]]
2018-12-20 08:03:00.930 INFO 6668 --- [ask-scheduler-5] o.s.integration.handler.LoggingHandler : GenericMessage [payload=BEY\finalBEY.csv, headers={file_originalFile=BEY\finalBEY.csv, id=b2d76ac5-fb85-1313-a37e-8849714a545e, file_name=finalBEY.csv, file_relativePath=finalBEY.csv, timestamp=1545285780930}]
2018-12-20 08:03:01.958 INFO 6668 --- [ask-scheduler-5] o.s.integration.ftp.session.FtpSession : File has been successfully transferred to: /ftp/erbranch/EDMS/FEFO/finalBEY.csv.writing
2018-12-20 08:03:02.373 INFO 6668 --- [ask-scheduler-5] o.s.integration.ftp.session.FtpSession : File has been successfully renamed from: /ftp/erbranch/EDMS/FEFO/finalBEY.csv.writing to /ftp/erbranch/EDMS/FEFO/finalBEY.csv
2018-12-20 08:03:05.033 INFO 6668 --- [ask-scheduler-7] o.s.i.file.FileReadingMessageSource : Created message: [GenericMessage [payload=JNB\finalJNB.csv, headers={file_originalFile=JNB\finalJNB.csv, id=4514e132-5684-9e82-28e7-f75c5c3dcf91, file_name=finalJNB.csv, file_relativePath=finalJNB.csv, timestamp=1545285785033}]]
2018-12-20 08:03:05.034 INFO 6668 --- [ask-scheduler-7] o.s.integration.handler.LoggingHandler : GenericMessage [payload=JNB\finalJNB.csv, headers={file_originalFile=JNB\finalJNB.csv, id=59e62375-f1da-461d-ee61-d105ac3159a0, file_name=finalJNB.csv, file_relativePath=finalJNB.csv, timestamp=1545285785034}]
2018-12-20 08:03:07.530 INFO 6668 --- [ask-scheduler-7] o.s.integration.ftp.session.FtpSession : File has been successfully transferred to: /ftp/erbranch/EDMS/FEFO/finalJNB.csv.writing
2018-12-20 08:03:08.539 INFO 6668 --- [ask-scheduler-7] o.s.integration.ftp.session.FtpSession : File has been successfully renamed from: /ftp/erbranch/EDMS/FEFO/finalJNB.csv.writing to /ftp/erbranch/EDMS/FEFO/finalJNB.csv
答案 0 :(得分：0)
.addFilter(new FileSystemPersistentAcceptOnceFileListFilter(new SimpleMetadataStore(), "foo"))),
SimpleMetadataStore()处于内存中-为每个流使用新存储意味着每次它都开始为空-您需要在所有流中使用共享的元数据存储。
此外，如果您需要防止服务器重新启动时出现重复，则需要使用持久性共享存储，例如Redis，JDBC等。