Java uses regular expressions for form verification tool class, which can verify email, mobile phone number, QQ number, etc.
Copy the code code as follows:
package util;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Use regular expressions for form validation
*
*/
public class RegexValidateUtil {
static boolean flag = false;
static String regex = "";
public static boolean check(String str, String regex) {
try {
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(str);
flag = matcher.matches();
} catch (Exception e) {
flag = false;
}
return flag;
}
/**
* Verify that it is not empty
*
* @param email
* @return
*/
public static boolean checkNotEmputy(String notEmputy) {
regex = "^//s*$";
return check(notEmputy, regex) ? false : true;
}
/**
* Verify email
*
* @param email
* @return
*/
public static boolean checkEmail(String email) {
String regex = "^//w+[-+.]//w+)*@//w+([-.]//w+)*//.//w+([-.]//w+)*$ " ;
return check(email, regex);
}
/**
* Verify mobile number
*
* Mobile number range: 139, 138, 137, 136, 135, 134, 150, 151, 152, 157, 158, 159, 182, 183, 187, 188, 147
* China Unicom number range: 130, 131, 132, 136, 185, 186, 145
* Telecom number segments: 133, 153, 180, 189
*
* @param cellphone
* @return
*/
public static boolean checkCellphone(String cellphone) {
String regex = "^((13[0-9])|(14[5|7])|(15([0-3]|[5-9]))|(18[0,5-9] ))//d{8}$";
return check(cellphone, regex);
}
/**
* Verify landline number
*
* @param telephone
* @return
*/
public static boolean checkTelephone(String telephone) {
String regex = "^(0//d{2}-//d{8}(-//d{1,4})?)|(0//d{3}-//d{7,8 }(-//d{1,4})?)$";
return check(telephone, regex);
}
/**
* Verify fax number
*
* @param fax
* @return
*/
public static boolean checkFax(String fax) {
String regex = "^(0//d{2}-//d{8}(-//d{1,4})?)|(0//d{3}-//d{7,8 }(-//d{1,4})?)$";
return check(fax, regex);
}
/**
* Verify QQ number
*
* @param QQ
* @return
*/
public static boolean checkQQ(String QQ) {
String regex = "^[1-9][0-9]{4,} $";
return check(QQ, regex);
}
}