正则简单判断文件后缀

js:

let wxsl="123.doc";

let reg = /(?:doc|docx|docm|xls|xlsx|pdf|pptx)$/;

let bo = reg.test(wxsl)

 

java：

　String imagename="11111111.doc";

String reg=".+(.doc|.docx|.docm|.jpg|.bmp|.gif|.ico|.pcx|.jpeg|.tif|.png|.raw|.tga|.avi|.wmv|.mpg|.mpeg|.mov|.rm|.ram|.swf|.flv|.mp4|.AVI|.mp4)$";

Pattern r = Pattern.compile(reg);
Matcher m = r.matcher(imagename);

System.out.println(m.matches());