Pattern pattern = Pattern.compile("(flv|f4v|mkv|rm|rmvb|mpg|mpeg|mpeg4|wmv|3gp|mp4|mov|avi|asx|asf|ts|qt){1}$",Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(type);
boolean result= matcher.find();
主要是参数Pattern.CASE_INSENSITIVE，是忽略大小写
js代码：
var flag = true;
var re= new RegExp("(\.|\/)(flv|f4v|mkv|rm|rmvb|mpg|mpeg|mpeg4|wmv|3gp|mp4|mov|avi|asx|asf|ts|qt)$","gi");
flag= re.test(fileName); 主要参数 gi，表示全局都忽略大小写