java 删除文件和文件夹工具类

import org.springframework.util.ResourceUtils;

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

public class FolderDeleteUtils {
	public static final String UPLOAD_PATH = getUploadPath();

    public static void folderDelete(String url) {
        String s = UPLOAD_PATH + url;
//      int i = s.lastIndexOf("\\");   window
        int i = s.lastIndexOf("/");
        s = s.substring(0, i);
        File path = new File(s);
        delFolder(path.getAbsolutePath());
    }

    public static void delFolder(String folderPath) {
        try {
            delAllFile(folderPath); //删除完里面所有内容
            String filePath = folderPath;
            filePath = filePath.toString();
            java.io.File myFilePath = new java.io.File(filePath);
            myFilePath.delete(); //删除空文件夹
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static boolean delAllFile(String path) {
        boolean flag = false;
        File file = new File(path);
        if (!file.exists()) {
            return flag;
        }
        if (!file.isDirectory()) {
            return flag;
        }
        String[] tempList = file.list();
        File temp = null;
        for (int i = 0; i < tempList.length; i++) {
            if (path.endsWith(File.separator)) {
                temp = new File(path + tempList[i]);
            } else {
                temp = new File(path + File.separator + tempList[i]);
            }
            if (temp.isFile()) {
                temp.delete();
            }
            if (temp.isDirectory()) {
                delAllFile(path + "/" + tempList[i]);//先删除文件夹里面的文件
                delFolder(path + "/" + tempList[i]);//再删除空文件夹
                flag = true;
            }
        }
        return flag;
    }

	//获取当前文件路径
    private static String getUploadPath() {
        try {
            String serverPath = ResourceUtils.getURL("classpath:").getPath();
            String uploadPath =  new File(serverPath).getParentFile().getParentFile().getParent() + File.separator + "upload" + File.separator;
            uploadPath = uploadPath.startsWith("file:") ? uploadPath.replace("file:", "") : uploadPath;
            return uploadPath;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return null;
    }
}