iOS开发中常用字符串验证处理操作

特殊验证

手机号验证

 //手机号以13， 15，18开头，八个 \d 数字字符    NSString *phoneRegex = @"^((13[0-9])|(15[^4,\\D])|(18[0,0-9]))\\d{8}$";    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];    return [phoneTest evaluateWithObject:mobile];

手机号归属验证

密码格式验证

// 正则匹配用户密码6-18位数字和字母组合+ (BOOL)checkPassword:(NSString*) password{NSString*pattern =@"^(?![0-9]+$)(?![a-zA-Z]+$)[a-zA-Z0-9]{6,18}";NSPredicate*pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",pattern];BOOLisMatch = [predevaluateWithObject:password];returnisMatch;}

用户名格式验证

正则匹配用户姓名,20位的中文或英文+ (BOOL)checkUserName : (NSString*) userName{NSString*pattern =@"^[a-zA-Z\u4E00-\u9FA5]{1,20}";NSPredicate*pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",pattern];BOOLisMatch = [predevaluateWithObject:userName];returnisMatch;}

邮箱验证

+ (BOOL) validateEmail:(NSString *)email{    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];    return [emailTest evaluateWithObject:email];}

银行卡号验证

+ (BOOL)isBankCard:(NSString *)cardNo{    if (cardNo.length < 16) {        return NO;    }    NSInteger oddsum = 0;     //奇数求和    NSInteger evensum = 0;    //偶数求和    NSInteger allsum = 0;    NSInteger cardNoLength = (NSInteger)[cardNo length];    // 取了最后一位数    NSInteger lastNum = [[cardNo substringFromIndex:cardNoLength-1] intValue];    //测试的是除了最后一位数外的其他数字    cardNo = [cardNo substringToIndex:cardNoLength - 1];    for (NSInteger i = cardNoLength -1 ; i>=1;i--) {        NSString *tmpString = [cardNo substringWithRange:NSMakeRange(i-1, 1)];        NSInteger tmpVal = [tmpString integerValue];        if (cardNoLength % 2 ==1 ) {//卡号位数为奇数            if((i % 2) == 0){//偶数位置                tmpVal *= 2;                if(tmpVal>=10)                    tmpVal -= 9;                evensum += tmpVal;            }else{//奇数位置                oddsum += tmpVal;            }        }else{            if((i % 2) == 1){                tmpVal *= 2;                if(tmpVal>=10)                    tmpVal -= 9;                evensum += tmpVal;            }else{                oddsum += tmpVal;            }        }    }    allsum = oddsum + evensum;    allsum += lastNum;    if((allsum % 10) == 0)        return YES;    else        return NO;}

银行卡号所属银行验证

+(NSString *)bankOfCard:(NSString *)cardNum{    //所需plist附件见文末    NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"BankAndBin" ofType:@"plist"];    NSDictionary *dicBank = [[NSDictionary alloc] initWithContentsOfFile:plistPath];    NSString *strPreTen = [self getPrefixStringToIndex:10 fromString:cardNum];//[cardNum substringToIndex:10];//前10位    NSString *strPreNine = [self getPrefixStringToIndex:9 fromString:cardNum];//[cardNum substringToIndex:9];//前9位    NSString *strPreEight = [self getPrefixStringToIndex:8 fromString:cardNum];//[cardNum substringToIndex:8];//8    NSString *strPreSeven =[self getPrefixStringToIndex:7 fromString:cardNum];//[cardNum substringToIndex:7];//7    NSString *strPreSix = [self getPrefixStringToIndex:6 fromString:cardNum];//[cardNum substringToIndex:6];//前6位    NSString *strPreFive = [self getPrefixStringToIndex:5 fromString:cardNum];//[cardNum substringToIndex:5];//5    NSString *strPreFour = [self getPrefixStringToIndex:4 fromString:cardNum];//[cardNum substringToIndex:4];//4    NSString *strPreThree = [self getPrefixStringToIndex:3 fromString:cardNum];//[cardNum substringToIndex:3];//前三位    NSString *strBankInfo = @"";    if (dicBank[strPreThree]) {        strBankInfo = dicBank[strPreThree];    }else if (dicBank[strPreFour]){        strBankInfo = dicBank[strPreFour];    }else if (dicBank[strPreFive]){        strBankInfo = dicBank[strPreFive];    }else if (dicBank[strPreSix]){        strBankInfo = dicBank[strPreSix];    }else if (dicBank[strPreSeven]){        strBankInfo = dicBank[strPreSeven];    }else if (dicBank[strPreEight]){        strBankInfo = dicBank[strPreEight];    }else if (dicBank[strPreNine]){        strBankInfo = dicBank[strPreNine];    }else if (dicBank[strPreTen]){        strBankInfo = dicBank[strPreTen];    }else{        strBankInfo = @"未找到匹配的发卡银行";        return strBankInfo;    }    NSRange range =[strBankInfo rangeOfString:@" "];    NSString *bankName = [strBankInfo substringToIndex:range.location];    return bankName;}+(NSString *)getPrefixStringToIndex:(NSInteger)index fromString:(NSString *)strAll{    if (strAll.length>=index) {        return  [strAll substringToIndex:index];    }else{        return @" ";    }}

身份证号验证

+ (BOOL) validateIdentityCard: (NSString *)identityCard{    BOOL flag;    if (identityCard.length <= 0) {        flag = NO;        return flag;    }    NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];    return [identityCardPredicate evaluateWithObject:identityCard];}

车牌号验证

//车牌号验证+ (BOOL) validateCarNo:(NSString *)carNo{    NSString *carRegex = @"^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}[a-zA-Z_0-9]{4}[a-zA-Z_0-9_\u4e00-\u9fa5]$";    NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",carRegex];    NSLog(@"carTest is %@",carTest);    return [carTest evaluateWithObject:carNo];}

银行卡号归属行验证文件：