[英]Read remote file in java which needs username and password
我正在尝试用 java 读取远程文件
File f = new File("//192.168.1.120/home/hustler/file.txt");
远程机器需要用户名和密码才能访问该文件。
有没有办法可以通过java代码传递参数并读取文件?
package com.eiq;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.FileSystemOptions;
import org.apache.commons.vfs.Selectors;
import org.apache.commons.vfs.UserAuthenticator;
import org.apache.commons.vfs.VFS;
import org.apache.commons.vfs.auth.StaticUserAuthenticator;
import org.apache.commons.vfs.impl.DefaultFileSystemConfigBuilder;
public class RemoteFileDemo {
public static void main(String[] args) throws IOException {
String domain = "hyd\\all";
String userName = "chiranjeevir";
String password = "Acvsl@jun2013";
String remoteFilePath = "\\\\10.0.15.74\\D$\\Suman\\host.txt";
File f = new File("E:/Suman.txt"); //Takes the default path, else, you can specify the required path
if (f.exists()) {
f.delete();
}
f.createNewFile();
FileObject destn = VFS.getManager().resolveFile(f.getAbsolutePath());
//domain, username, password
UserAuthenticator auth = new StaticUserAuthenticator(domain, userName, password);
FileSystemOptions opts = new FileSystemOptions();
DefaultFileSystemConfigBuilder.getInstance().setUserAuthenticator(opts, auth);
FileObject fo = VFS.getManager().resolveFile(remoteFilePath, opts);
System.out.println(fo.exists());
//fo.createFile();
destn.copyFrom(fo, Selectors.SELECT_SELF);
destn.close();
//InputStream is = new FileInputStream(f);
}
}
这是一个从远程机器读取文件并将其作为文件E:/Suman.txt
存储在本地机器中的程序。
写文件路径时要小心,我们必须用$
符号替换它,例如:
D:\Suman\Boorla\kpl.txt
是错误的, D$\\Suman\\Boorla\\kpl.txt
是正确的.
在上面的程序中,您必须更改远程机器的域名、用户名、密码和文件路径。 要使用上述程序,我们需要在类路径中添加以下jar
文件。
commons-vfs.jar
commons-logging.jar
jCIFS的另一种选择,您可以轻松指定身份验证参数:
NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication("domain", "user", "password"); // Authentication info here, domain can be null
try (InputStream is = new SmbFile("smb://192.168.1.120/home/hustler/file.txt", auth).getInputStream()) {
// Read from 'is' ...
} catch (IOException e) {
// Handle IOException
}
您也可以尝试Commons VSF 。 检查UserAuthenticator
这是我编写的代码,它运行良好。
File f=new File("abc.txt"); //Takes the default path, else, you can specify the required path
if(f.exists())
{
f.delete();
}
f.createNewFile();
FileObject destn = VFS.getManager().resolveFile(f.getAbsolutePath());
UserAuthenticator auth = new StaticUserAuthenticator("", "myusername", "secret_password");
FileSystemOptions opts = new FileSystemOptions();
DefaultFileSystemConfigBuilder.getInstance().setUserAuthenticator(opts, auth);
FileObject fo = VFS.getManager().resolveFile("\\\\192.168.0.1\\direcory\\to\\GetData\\sourceFile.txt",opts);
destn.copyFrom(fo,Selectors.SELECT_SELF);
destn.close();
现在您可以使用该文件执行所需的操作。 就像是...
InputStream is = new FileInputStream(f);
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