如何用正则筛选出123456

Question

正则

Answer 1

location.pathname.replace(/.*\/(.*?)\.?/,'$1')

Answer 2

         Pattern pattern = Pattern.compile(".*//.*/.*/([0-9]*)(.JPG)*");
 Matcher matcher01 = pattern.matcher("http://127.0.0.1:8080/Image/123456.JPG");
 Matcher matcher02 = pattern.matcher("http://127.0.0.1:8080/Image/123456");
 System.out.println(matcher01.find());
 System.out.println(matcher01.group(1));
 System.out.println(matcher02.find());
 System.out.println(matcher02.group(1));结果：true
123456
true
123456

Answer 3

那这样的呢 
http://127.0.0.1:8080/Image/0877e0c4-986f-47bb-8a5f-e5a30fd86367.JPG
或者
http://127.0.0.1:8080/Image/0877e0JLDJOJGsjfosfsjfHDOIHFF5a30fd86367.JPG

Answer 4

那这样的呢 
http://127.0.0.1:8080/Image/0877e0c4-986f-47bb-8a5f-e5a30fd86367.JPG
或者
http://127.0.0.1:8080/Image/0877e0JLDJOJGsjfosfsjfHDOIHFF5a30fd86367.JPG你可以试下下面这个：Pattern pattern01 = Pattern.compile(".*//.*/.*/(.*)(.JPG){0,1}");只不过如果路径最后带有.JPG的话，那么结果也有。下面是测试的语句和结果：Pattern pattern01 = Pattern.compile(".*//.*/.*/(.*)(.JPG){0,1}");
 Matcher matcher01 = pattern01.matcher("http://127.0.0.1:8080/Image/0877e0c4-986f-47bb-8a5f-e5a30fd86367.JPG");
 Matcher matcher02 = pattern01.matcher("http://127.0.0.1:8080/Image/0877e0JLDJOJGsjfosfsjfHDOIHFF5a30fd86367.JPG");
 Matcher matcher03 = pattern01.matcher("http://127.0.0.1:8080/Image/123456.JPG");
         Matcher matcher04 = pattern01.matcher("http://127.0.0.1:8080/Image/123456");
 matcher01.find();
 System.out.println(matcher01.group(1));
 matcher02.find();
 System.out.println(matcher02.group(1));
 matcher03.find();
 System.out.println(matcher03.group(1));
 matcher04.find();
 System.out.println(matcher04.group(1));结果：0877e0c4-986f-47bb-8a5f-e5a30fd86367.JPG
0877e0JLDJOJGsjfosfsjfHDOIHFF5a30fd86367.JPG
123456.JPG
123456

Answer 5

String s="http://127.0.0.1:8080/Image/123456.jpg";
//String s="http://127.0.0.1:8080/Image/123456";
s= s.replaceAll("^.*/((\\w+)(\\.\\w+)*)$", "$1");

System.out.println(s);

Answer 6

Pattern pattern=Pattern.compile("^.*/((\\w+?)(\\.\\w+?)?)$");
Matcher matcher=pattern.matcher("http://127.0.0.1:8080/Image/123456");
//Matcher matcher=pattern.matcher("http://127.0.0.1:8080/Image/123456.jpg");
while(matcher.find()){
System.out.println(matcher.group(1)); //文件名字带后缀
//System.out.println(matcher.group(2)); //文件名不带后缀
//System.out.println(matcher.group(3));//后缀名
}