Question

我的代码有问题：

public class Files {

    public static void main(String[] args) throws IOException {
        // filter files AAA.txt and BBB.txt from another's
        File f = new File("d:\\dir"); // current directory
        File f1 = new File("d:\\dir1\\");


        FilenameFilter textFilter = new FilenameFilter() {
            public boolean accept(File dir, String name) {

                if (name.startsWith("A") && name.endsWith(".TXT")) {
                    //System.out.println(name);
                    return true;
                }
                else if (name.startsWith("B") && name.endsWith(".TXT")) {
                    //System.out.println(name);
                    return true;
                }
                else {
                    //System.out.println(name);
                    return false;
                }
            }
        };

        File[] files = f.listFiles(textFilter);
        for (File file : files) {
            if (file.getName().startsWith("A") ) {
                //here save file to d:\\folder1\\
            }
        }
    }
}

如何将示例AAA.txt中具有特定名称的文件保存到folder1，将BBB.txt保存到文件夹2.感谢任何示例

Answer 1

来自Java 7的Files类：
使用move(Path source, Path target, CopyOption... options)

import static java.nio.file.StandardCopyOption.*;
import java.nio.file.FileSystem;
import java.nio.file.Path;
import java.nio.file.Files;
...
for (File file : files) {    
  if (file.getName().startsWith("A") ) {
     //here save file to d:\\folder1\\
     // convert file to Path object use toPath() method.
     Path targetFilePath = FileSystems.getDefault().getPath("d:\\folder1\\").resolve(file.getFileName())
     Files.move(file.toPath(), targetFilePath , REPLACE_EXISTING);
  }
}

从File []文件到目录

1 个答案: