how to check if address valid

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Use of annotations such as SPRINGMVC data check @valid and tool extraction

Recently in refactoring the old project code, found that the check-in parameter occupies a lot of code, before I know this piece of knowledge is limited to using stringutils and other tools to judge multiple if blocks, the code is not a problem, but

C # Check whether the email address is valid

Copy codeThe Code is as follows:/// /// Check whether the entered email address strEmail is valid. If it is invalid, true is returned./// Public bool CheckEmail (string strEmail){Int I, j;String strTmp, strResult;String strWords =

PHP Check Verify IP is valid IP address function _php Tutorial

Before php5.2 if we want to verify that the IP address is valid we need to use the regular to verify that this is only the IP address is not legal, if it is valid we need to call Ping to operate, but after php5.2.0, there is a special function to do

Php checks and verifies that the IP address is a valid IP address.

Before php5.2, if we want to verify whether the IP address is valid, we need to use regular expressions to verify that the IP address is valid. If it is valid, we need to call ping, but after php5.2.0, there are special functions to make this

A small function used to check whether the email address is a valid email address.

A small function used to check whether the email address is a valid email address. /* // Function name: CheckEmailAddr ($ C_mailaddr) // Usage: determines whether the email address is a valid email address.

Php checking and verifying IP addresses as valid IP address function _ PHP Tutorial

Php checks and verifies that the IP address is a valid IP address. Before php5.2, if we want to verify whether the IP address is valid, we need to use regular expressions to verify that the IP address is valid. if it is valid, we need to call ping,

Php determines that the IP address is a valid IP address.

Php determines that the IP address is a valid IP address. When most people see this log, the first impression must be about how to use regular expressions to determine. No. After php5.2.0, a special function is provided for this judgment. Determine

Code that PHP detects if the URL address and HTTP address format are valid

/** DESC: Check network address format is valid link:bbs.it-home.org Date:2013/2/24 */ function Checkurl ($weburl) { Return!ereg ("^http (s) *://[_a-za-z0-9-]+ (. [ _a-za-z0-9-]+) *$ ", $weburl);

Android get local IP address, Ipv4 address check, Ipv6 address check

/** * Get local IP address * @author YOLANDA * @return */public static string Getlocalipaddress () {String ipAddress = ""; try {Enumerat ion netfaces = networkinterface.getnetworkinterfaces ();//traverse the network interface while (

PHP form Check function library (determine whether the email format is correct, HTTP address is valid, mobile phone number is legitimate)

/** * form Check function library *//** * Determine if the email format is correct * @param $email */function is_email ($email) { return strlen ($email) > 6 &&A mp Preg_match ("/^[\w\-\.") [Email protected] [\w\-\.] + (\.\w+) +$/", $email);}

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