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];
}