CODEWITHSUNDEEP
javamysqlregex
user1047873
user1047873

Reputation: 268

Regex Fetched from MYSQL is not validating

  for(String paramName:paramNames){
    String regexString = regexPair.get(paramName);
    try{             
        System.out.println(regexString);
        Pattern p = Pattern.compile(regexString);
        Matcher m = p.matcher(paramMap.get(paramName)[0]);
        status = m.matches();
    }catch(Exception e)
    {
        e.printStackTrace();
    }
    if(!status)
           break;
}

where regexSring have value

 "^(?!.*[^A-Za-z0-9@])((?=.*\\d)(?=.*[a-z]).{6,20})$"

The value of regexString is fecthed from mysql db an populated in map and paramMap.get(paramName)[0] have value "dssf55454" but it is retuning false while it should return true.

If I write the following sample program 

 Pattern p = Pattern.compile("^(?!.*[^A-Za-z0-9@])((?=.*\\d)(?=.*[a-z]).{6,20})$");
 Matcher m = p.matcher("mal4554SD");
 status = m.matches();
 System.out.println(status);

it returns true. Why?

Upvotes: 1

Views: 77

Answers (1)

kshen
kshen

Reputation: 819

The problem might be in the snippet \\d in the regexString.

What is the result printed in console?

System.out.println(regexString);

Also, it will be helpful if you can share more details about regexPair and its get().

Upvotes: 3

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