java 验证邮箱格式正确性

public class RegisterCheck { 

    /** 

     * 验证输入的邮箱格式是否符合 

     * @param email 

     * @return 是否合法 

     */ 

public static boolean emailFormat(String email) 

    { 

        boolean tag = true; 

        final String pattern1 = "^([a-z0-9A-Z]+[-|//.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?//.)+[a-zA-Z]{2,}$"; 

        final Pattern pattern = Pattern.compile(pattern1); 

        final Matcher mat = pattern.matcher(email); 

        if (!mat.find()) { 

            tag = false; 

        } 

        return tag; 

    } 

}