Java：org.apache.commons.io.FilenameUtils获取文件名、扩展名

依赖

    commons-io
    commons-io
    2.4

FilenameUtils使用示例

import org.apache.commons.io.FilenameUtils;

public class IODemo {
    public static void main(String[] args) {
        String filename = "/root/name.txt";

        System.out.println(FilenameUtils.getName(filename));
        // name.txt

        System.out.println(FilenameUtils.getBaseName(filename));
        // name

        System.out.println(FilenameUtils.getExtension(filename));
        // txt

    }
}