[英]Using Apache Commons VFS- SFTP, uploading to a server
I'm attempting to use Apache Commons VFS to SFTP a file onto a server, but I keep getting the following error:我正在尝试使用 Apache Commons VFS 将文件通过 SFTP 传输到服务器上,但我不断收到以下错误:
java.lang.RuntimeException: org.apache.commons.vfs2.FileSystemException: Could not connect to SFTP server at "sftp://user:***@xxx.x.xxx.xxx/".
Is it normal for it to not include the remote file path ( remoteFilePath
) here?此处不包含远程文件路径 (
remoteFilePath
) 是否正常? It's in my code to include it in the connection string (see below)在我的代码中将它包含在连接字符串中(见下文)
I have the following jars included in my pom :我的 pom 中包含以下 jars :
commons-logging-1.1.3.jar commons-logging-1.1.3.jar
commons-vfs2-2.0.jar commons-vfs2-2.0.jar
hamcrest-core-1.3.jar hamcrest-core-1.3.jar
jsch-0.1.50.jar jsch-0.1.50.jar
Code :代码:
public void SftpMethod(String strMsg, String tableName){
String host = "xxx.x.xxx.xxx";
String user = "user";
String pass = "password!";
String localFilePath = "C:\\Users\\exampleDir\\Desktop\\loc.dat";
String remoteFilePath = "/dir/home/user/export/loc.dat";
StandardFileSystemManager manager = new StandardFileSystemManager();
File file = new File(localFilePath);
if (!file.exists())
throw new RuntimeException("Error. Local file not found");
try{
manager.init();
// Create local file object
FileObject localFile = manager.resolveFile(file.getAbsolutePath());
// Create remote file object
FileObject remoteFile = manager.resolveFile(
createConnectionString(host, user, pass, remoteFilePath),
createDefaultOptions());
// Copy local file to SFTP server
remoteFile.copyFrom(localFile, Selectors.SELECT_SELF);
System.out.println("File upload success");
}catch(IOException e){
throw new RuntimeException(e);
}finally{
manager.close();
}
}
public static String createConnectionString(String hostName, String username, String password, String remoteFilePath) {
return "sftp://" + username + ":" + password + "@" + hostName + "/" + remoteFilePath;
}
public static FileSystemOptions createDefaultOptions() throws FileSystemException {
// Create SFTP options
FileSystemOptions opts = new FileSystemOptions();
// SSH Key checking
SftpFileSystemConfigBuilder.getInstance().setStrictHostKeyChecking(opts, "no");
/*
* Using the following line will cause VFS to choose File System's Root
* as VFS's root. If I wanted to use User's home as VFS's root then set
* 2nd method parameter to "true"
*/
// Root directory set to user home
SftpFileSystemConfigBuilder.getInstance().setUserDirIsRoot(opts, true);
// Timeout is count by Milliseconds
SftpFileSystemConfigBuilder.getInstance().setTimeout(opts, 10000);
return opts;
}
Without the full stack trace its hard to give a conclusive answer, but this is what I saw recently:如果没有完整的堆栈跟踪,很难给出结论性的答案,但这是我最近看到的:
Caused by: org.apache.commons.vfs2.FileSystemException: Could not load private key from "/Users/<user>/.ssh/id_rsa".
at org.apache.commons.vfs2.provider.sftp.SftpClientFactory.createConnection(SftpClientFactory.java:131)
Unfortunately, I wasn't trying to use a public/private key.不幸的是,我并没有尝试使用公钥/私钥。 I was only intending to log in with a username/password.
我只想用用户名/密码登录。 I needed a way for it to stop trying to read my private key.
我需要一种方法让它停止尝试读取我的私钥。
The root cause was that the code was using a default location for my key, and attempting to read it (even though thats not what I wanted).根本原因是代码使用了我的密钥的默认位置,并试图读取它(即使那不是我想要的)。
So the workaround was to override the default location by setting the following property:因此,解决方法是通过设置以下属性来覆盖默认位置:
System.setProperty("vfs.sftp.sshdir", "/");
This bypassed the attempt to read the ssh key altogether, and successfully connected.这完全绕过了读取 ssh 密钥的尝试,并成功连接。
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