java extract address items by regex

I have a string: user1:password@192.168.1.3:3306/dbname1 and I need to fill the username, password, host, port and dbname variables... my code:

String patternStr = "(\b[A-Z0-9._%+-]+):([A-Z]+)@([A-Z0-9.-]+):([0-9]{1,5})/([A-Z0-9_-]+)";
Pattern p = Pattern.compile(patternStr, Pattern.CASE_INSENSITIVE);
Matcher matc开发者_运维技巧her = p.matcher(dbpath);
System.out.println(matcher.matches());

Output:

false

:( show me my mistake please... Thank you.

Here's a much simpler version that's not 100% correct, but it does the Job in your case:

String dbpath = "user1:password@192.168.1.3:3306/dbname1";
String patternStr = "([^:]+):([^@]+)@([^:]+):([^/]+)/(.+)";
Pattern p = Pattern.compile(patternStr, Pattern.CASE_INSENSITIVE);
Matcher matcher = p.matcher(dbpath);
System.out.println(matcher.matches());

// Output: true

Here's the fix to your immediate problem. Substitute

\b

with

\\b

Backslashes need to be escaped in Java. I tried it with this:

"(\\b[A-Z0-9._%+-]+):([A-Z]+)@([A-Z0-9.-]+):([0-9]{1,5})/([A-Z0-9_-]+)"

And your code printed true.

class AddressRegex {
    public static void main(String[] args) {

        String dbpath = "user1:password@192.168.1.3:3306/dbname1";       

        // I should point out my coworker is wrong when he says this is a
        // guy eating too big a sandwich!! It's just a set of delimiters!
        String[] tokens = dbpath.split(":|@|/");

        String user = tokens[0];
        String host = tokens[1];
        String port = tokens[2];
        String dbid = tokens[3];

        System.out.println(user);
        System.out.println(host);
        System.out.println(port);
        System.out.println(dbid);


    }

}

String input = "user1:password@192.168.1.3:3306/dbname1";
Scanner scanner = new Scanner(input).useDelimiter("[:@/]");
String user = scanner.next();
String password = scanner.next();
String host = scanner.next();
int port = scanner.nextInt();
String dbName = scanner.next();