Java tutorial
/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */ package cn.guoyukun.spring.utils; import org.apache.commons.io.FilenameUtils; import org.apache.commons.lang3.ArrayUtils; /** * <p>User: * <p>Date: 13-2-12 ?9:29 * <p>Version: 1.0 */ public class ImagesUtils { private static final String[] IMAGES_SUFFIXES = { "bmp", "jpg", "jpeg", "gif", "png", "tiff" }; /** * ? * * @param filename * @return */ public static boolean isImage(String filename) { if (filename == null || filename.trim().length() == 0) return false; return ArrayUtils.contains(IMAGES_SUFFIXES, FilenameUtils.getExtension(filename).toLowerCase()); } }