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some utility class for java develop

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package com.star.io.file.filevisitor;

import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;

/**
 * 删除文件夹及下面内容
 *
 * @author starhq
 */
public class DeleteDirVisitor extends SimpleFileVisitor {


    /**
     * 删除文件
     *
     * @param file  文件
     * @param attrs 文件属性
     * @return 是否继续访问
     */
    @Override
    public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
        Files.deleteIfExists(file);
        return FileVisitResult.CONTINUE;
    }

    /**
     * 删除目录
     *
     * @param dir 目录
     * @param exc 处理过程中的异常
     * @return 是否继续访问
     */
    @Override
    public FileVisitResult postVisitDirectory(final Path dir, final IOException exc) throws IOException {
        if (exc == null) {
            Files.deleteIfExists(dir);
            return FileVisitResult.CONTINUE;
        }
        throw exc;
    }

}