无法使用 spring 集成将文件上传到 sftp 服务器

Question

嗨，尝试使用 Spring 集成将 CSV 文件上传到 SFTP 服务器时，我遇到了以下异常，无法找出出了什么问题，但在服务器上我可以看到像10132_1234.csv.writing这样的文件，但写入操作永远不会完成，而通过 Winscp 我可以毫无问题地复制， 请帮助解决此问题，

Caused by: org.springframework.messaging.MessagingException: Failed
to write to 'file-location/10132_1234.csv.writing' while uploading
the file; nested exception is
org.springframework.core.NestedIOException: failed to write file;
nested exception is 3: Forbidden     at
org.springframework.integration.file.remote.RemoteFileTemplate.sendFileToRemoteDirectory(RemoteFileTemplate.java:560)
at
org.springframework.integration.file.remote.RemoteFileTemplate.doSend(RemoteFileTemplate.java:337)
... 88 common frames omitted`enter code here`
Caused by: org.springframework.core.NestedIOException: failed to
write file; nested exception is 3: Forbidden     at
org.springframework.integration.sftp.session.SftpSession.write(SftpSession.java:177)
at
org.springframework.integration.file.remote.session.CachingSessionFactory$CachedSession.write(CachingSessionFactory.java:235)
at
org.springframework.integration.file.remote.RemoteFileTemplate.doSend(RemoteFileTemplate.java:568)
at
org.springframework.integration.file.remote.RemoteFileTemplate.sendFileToRemoteDirectory(RemoteFileTemplate.java:557)
... 89 common frames omitted
Caused by: com.jcraft.jsch.SftpException: Forbidden  at
com.jcraft.jsch.ChannelSftp.throwStatusError(ChannelSftp.java:2873)
at com.jcraft.jsch.ChannelSftp._put(ChannelSftp.java:594)   at
com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:540)    at
com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:492)    at
org.springframework.integration.sftp.session.SftpSession.write(SftpSession.java:174)
... 92 common frames omitted

这是我的上传代码：

@Bean
public SessionFactory<LsEntry> sftpSessionFactory() {
DefaultSftpSessionFactory factory = new DefaultSftpSessionFactory(true);
factory.setHost(sftpHost);
factory.setPort(sftpPort);
factory.setUser(sftpUser);
if (sftpPrivateKey != null) {
factory.setPrivateKey(sftpPrivateKey);
factory.setPrivateKeyPassphrase(sftpPrivateKeyPassphrase);
} else {
factory.setPassword(sftpPasword);
}
factory.setAllowUnknownKeys(true);
return new CachingSessionFactory<>(factory);
}
@Bean
@ServiceActivator(inputChannel = "toSftpChannel")
public MessageHandler handler() {
logger.info("Entering into MessageHandler for uploading the file to SFTP server");
SftpMessageHandler handler = new SftpMessageHandler(sftpSessionFactory());
handler.setRemoteDirectoryExpression(new LiteralExpression(sftpRemoteDirectory));
handler.setFileNameGenerator(message -> {
if (message.getPayload() instanceof File) {
return ((File) message.getPayload()).getName();
} else {
throw new IllegalArgumentException("File expected as payload.");
}
});
return handler;
}
@MessagingGateway
public interface UploadGateway {
@Gateway(requestChannel = "toSftpChannel")
void upload(File file);
}

Answer 1

只需检查您是否提供了有效的文件路径作为目的地。它应该是它写入上游文件内容的确切文件路径

springframework.integration.sftp.session.SftpSession.write(InputStream inputStream, String destination)