email validation in java without regular expression
email validation in java without regular expression
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For WEB development, form verification is essential, so we list some common verifications today. Haha, The JS regular expression we just learned this afternoon, I hope you can criticize and correct any shortcomings.
I. Related codeCopy codeThe Code is as follows:Function test (){Var temp = document. getElementById ("text1 ");// Email VerificationVar myreg =/^ ([a
This article mainly introduces the PHP regex verification Email method, which involves the related skills of php regular expression verification. if you need it, refer to the example in this article to describe the PHP regex verification Email method. Share it with you for your reference. The details are as follows:
You often need to verify the email address, mobile phone number, and phone number. Here, record the regular expression verification implementation in ASP
Function validate (byval STR, byval number)
Dim temp, Reg
Set Reg = new Regexp
Reg. ignorecase = true
Reg. Global = true
Select case CSTR (number)
'English + Space
Case "0" temp = "^ [A-Za-Z] + $
Original address: http://houfeng0923.iteye.com/blog/1035321Today do form submitted input box condition validation, verify whether to include Chinese; online search a circle based on JS regular expression verification is not easy to use, and most of the reprint from one or two original text! What exactly is take doctrine? According to the search results, this arti
PHP Regular Expression verification Email Method
This article describes the PHP Regular Expression verification Email method. Share it with you for your reference. The details are as follows:
?
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Regular expression verification email address and phone number
Verify the regular expression of the phone number:(\ D {3}-) (\ d {8}) $ | (\ d {4}-) (\ d {7 }) $ | (\ d {4}-) (\ d {8}) $(The new phone number is used here)Verify the
if (eregi ("^[_.0-9a-z-]+@" ([0-9a-z][0-9a-z-]+.) +[a-z]$ ", $email)) {
echo "Your e-mail through a preliminary check";
}
?>
In this sentence, the first is the application of a eregi function, this function is good understanding. If you look for a book, you can give an explanation:
Syntax: int ereg (string pattern, string string, array [regs]);
return value: Integer/array
This function parses string strings with the rule of pattern.
The value return
to contain only numbers///can match integers and floating-point numbers///^-?\d+$|^ (-?\d+) (\.\d+)? $/// /// /// Public Static BOOLIsnumber (stringinput) { stringPattern =@"^-?\d+$|^ (-?\d+) (\.\d+)? $"; returnRegex.IsMatch (input, pattern); } /// ///determine if the input string is a valid email address/// /// /// Public Static BOOLIsemail (stringinput) { stringP
This article mainly introduces the PHP regular expression library implementation of email address verification, interested in the friend's reference, I hope to help you.
The code is as follows:
Summary: The above is the entire content of this article, I hope to be able to help you learn.
Form Validation(1) Non-null verification (go blank)(2) comparison verification (compared with a value)(3) Scope validation (judging by a range)(4) Fixed format verification: Phone number, Social Security number, mailbox, credit card number verification, need to use regular expression to verify(5) Other verificationExam
password: ^[a-za-z]\w{5,17}$ the correct format is: Start with a letter, the length is between 6-18, and can contain only characters, numbers, and underscores.Verify that it contains ^% ',; =?$\ ' characters:[^% ', =?$\x22]+Verify Kanji: ^[\u4e00-\u9fa5],{0,}$Verify email Address: ^\w+[-+.] \w+) *@\w+ ([-.] \w+) *\.\w+ ([-.] \w+) *$Verify interneturl:^http://([\w-]+\.) +[\w-]+ (/[\w-./?%=]*)? $; ^[a-za-z]+://(w+ (-w+) *) (. ( w+ (-w+) *) * (? s*)? $V
password: ^[a-za-z]\w{5,17}$ the correct format is: Start with a letter, the length is between 6-18, and can contain only characters, numbers, and underscores.Verify that it contains ^% ',; =?$\ ' characters:[^% ', =?$\x22]+Verify Kanji: ^[\u4e00-\u9fa5],{0,}$Verify email Address: ^\w+[-+.] \w+) *@\w+ ([-.] \w+) *\.\w+ ([-.] \w+) *$Verify interneturl:^http://([\w-]+\.) +[\w-]+ (/[\w-./?%=]*)? $; ^[a-za-z]+://(w+ (-w+) *) (. ( w+ (-w+) *) * (? s*)? $V
: This article describes php regular expression verification (email address, Url address, phone number, and zip code). If you are interested in PHP tutorials, refer to it. The content to be verified in this example is as follows: email address, Url address, phone number, and zip code. the verification method is for you
As follows: This is a regular expression that prevents some of the keywords in the data entered by the user to contain SQLI've always thought it was right, it's not much of a problem, and it's not a problem to test myself.Because the keyword contains and, and if the user input Andy , Khan, so you have to combineSome of the features of SQL to modify this regular e
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