这是一个接受命令行参数的基本main方法，您可能需要附加自己的错误检查或将其塑造为您认为合适的方式。

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

public class DeleteFiles {

/**
 * @param intitial arguments take in a source to read from and a 
 * destination to read to
 */
    public static void main(String[] args)
                     throws FileNotFoundException,IOException {
        File src = new File(args[0]);
        if (!src.exists() ) {
            System.out.println("FAILURE!");
        }else{
            // Gathers files in directory
            File[] a = src.listFiles();
            for (int i = 0; i < a.length; i++) {
                //Sends files to recursive deletion method
                fileDelete(a[i]);
            }
            // Deletes original source folder
            src.delete();
            System.out.println("Success!");
        }
    }

    /**
     * @param srcFile Source file to examine
     * @throws FileNotFoundException if File not found
     * @throws IOException if File not found
     */
    private static void fileDelete(File srcFile)
                     throws FileNotFoundException, IOException {
        // Checks if file is a directory
        if (srcFile.isDirectory()) {
            //Gathers files in directory
            File[] b = srcFile.listFiles();
            for (int i = 0; i < b.length; i++) {
                //Recursively deletes all files and sub-directories
                fileDelete(b[i]);
            }
            // Deletes original sub-directory file
            srcFile.delete();
        } else {
            srcFile.delete();
        }
    }
}

我希望这对你有所帮助!

public static void deleteDirectory(File path) 
{
    if (path == null)
        return;
    if (path.exists())
    {
        for(File f : path.listFiles())
        {
            if(f.isDirectory()) 
            {
                deleteDirectory(f);
                f.delete();
            }
            else
            {
                f.delete();
            }
        }
        path.delete();
    }
}

在Java 7中，我们终于可以通过可靠的符号链接检测来做到这一点。(我不认为Apache的commons-io现在有可靠的符号链接检测，因为它不处理Windows上用mklink创建的链接。)

出于历史原因，这里有一个java 7之前的答案，它遵循符号链接。

void delete(File f) throws IOException {
  if (f.isDirectory()) {
    for (File c : f.listFiles())
      delete(c);
  }
  if (!f.delete())
    throw new FileNotFoundException("Failed to delete file: " + f);
}

在遗留项目中，我需要创建本地Java代码。我创建了类似于Paulitex代码的代码。看到:

public class FileHelper {

   public static boolean delete(File fileOrFolder) {
      boolean result = true;
      if(fileOrFolder.isDirectory()) {
         for (File file : fileOrFolder.listFiles()) {
            result = result && delete(file);
         }
      }
      result = result && fileOrFolder.delete();
      return result;
   } 
}

单元测试:

public class FileHelperTest {

    @Before
    public void setup() throws IOException {
       new File("FOLDER_TO_DELETE/SUBFOLDER").mkdirs();
       new File("FOLDER_TO_DELETE/SUBFOLDER_TWO").mkdirs();
       new File("FOLDER_TO_DELETE/SUBFOLDER_TWO/TEST_FILE.txt").createNewFile();
    }

    @Test
    public void deleteFolderWithFiles() {
       File folderToDelete = new File("FOLDER_TO_DELETE");
       Assert.assertTrue(FileHelper.delete(folderToDelete));
       Assert.assertFalse(new File("FOLDER_TO_DELETE").exists());
    }

}

在Guava 9之前，Guava一直支持files . deleterecursive (File)。

来自番石榴10:

弃用。该方法存在符号链接检测差和竞态条件差的问题。只有使用操作系统命令(如rm -rf或del /s)才能适当地支持此功能。这个方法计划在Guava 11.0版本中从Guava中移除。

因此，在番石榴11中没有这种方法。

刚刚看到我的解决方案或多或少与埃里克森的相同，只是包装成一个静态方法。把它放到某个地方，它的重量比安装所有Apache Commons要轻得多，因为(如您所见)非常简单。

public class FileUtils {
    /**
     * By default File#delete fails for non-empty directories, it works like "rm". 
     * We need something a little more brutual - this does the equivalent of "rm -r"
     * @param path Root File Path
     * @return true iff the file and all sub files/directories have been removed
     * @throws FileNotFoundException
     */
    public static boolean deleteRecursive(File path) throws FileNotFoundException{
        if (!path.exists()) throw new FileNotFoundException(path.getAbsolutePath());
        boolean ret = true;
        if (path.isDirectory()){
            for (File f : path.listFiles()){
                ret = ret && deleteRecursive(f);
            }
        }
        return ret && path.delete();
    }
}