import java.io.File;
import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;public class FileIUtils {

删除文件夹及文件夹下的所有文件

public static void deleteDirAndFiles(String path) throws Exception {File file = new File(path);if (file.exists() && file.isDirectory()) {FileUtils.deleteDirectory(file);System.out.println("Delete Dir and Files: " + path);}
}

生成文件夹

public static void makeSureDirExist(String path) throws Exception {File file = new File(path);if (!file.exists()) {boolean mkdirs = file.mkdirs();if (!mkdirs) {throw new IOException("mkdirs failed");} else {System.out.println("Make Directory: " + path);}}
}

生成文件名

public static String genFileName(String path, String name, String suffix) {String time = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMddHHMMSS"));return path + name + time + suffix;
}