publicstaticStringgetFileType(Filefile){Stringextension=getFileExtension(file);StringfileType="";switch(extension){case"txt":fileType="文本文件";break;case"jpg":case"jpeg":case"png":fileType="图像文件";break;case"pdf":fileType="PDF文件";break;// 可以根据需要添加更多的文件类型default:fileType="未知...
publicStringgetExtensionByGuava(String filename){returnFiles.getFileExtension(filename); } The methodgetFileExtension(String)will first check whether the givenfilenameis empty. If thefilenameisn’t empty, then it will create aFileinstance by converting the givenfilenameinto an abstract pathname and c...
PHP中获取文件扩展名的N种方法 从网上收罗的,基本上就以下这几种方式: 第1种方法: function get_extension($file) { substr(strrchr($file, '.'), 1); } 第2种方法: function get_extension($file) { return substr($file, strrpos($file, '.') ...
在这种情况下，使用FilenameUtils.getExtenence从…ApacheCommonsIO下面是如何使用它的示例(您可以指定完整...
publicstaticString getFileExtension(URL extUrl) {//URL: "http://photosaaaaa.net/photos-ak-snc1/v315/224/13/659629384/s659629384_752969_4472.jpg"//String filename = "";//PATH: /photos-ak-snc1/v315/224/13/659629384/s659629384_752969_4472.jpgString extension=""; ...
publicstaticString getFileExtension(URL extUrl) {//URL: "http://photosaaaaa.net/photos-ak-snc1/v315/224/13/659629384/s659629384_752969_4472.jpg"//String filename = "";//PATH: /photos-ak-snc1/v315/224/13/659629384/s659629384_752969_4472.jpgString extension=""; ...
[]driversList=drivers.split(":");println("number of Drivers:"+driversList.length);for(String aDriver:driversList){try{println("DriverManager.Initialize: loading "+aDriver);Class.forName(aDriver,true,ClassLoader.getSystemClassLoader());}catch(Exception ex){println("DriverManager.Initialize: load ...
六. org.apache.commons.io.FilenameUtils 代码语言:javascript 代码运行次数:0 运行 AI代码解释 getExtension:返回文件后缀名 getBaseName:返回文件名,不包含后缀名 getName:返回文件全名 concat:按命令行风格组合文件路径(详见方法注释) removeExtension:删除后缀名 normalize:使路径正常化 wildcardMatch:匹配通配符 seper...
publicstaticvoidlx3(){//判断文件名的后缀。//isExtension(String fileName,String ext):判断fileName是否是ext后缀名;booleanb = FilenameUtils.isExtension("ja.txt","rar"); System.out.println(b); } lx3: publicstaticvoidlx2(){//getname 获取文件名。String name = FilenameUtils.getName("D:\\ja...
Next, let’s use these inputs to demonstrate how to extract the expected file extensions. 3. Using String Methods A straightforward way to get the file extension of a file in Java is to use the built-in String methods. As filenames are essentially Strings, we can manipulate the filename...