2fa verification code error

1, the space is full. I encountered a verification code error is full of space, if you also encounter the problem of validation code errors, you can first check whether the space is full. 2, with FTP into your DEDECMS program space, the Data/session directory in addition to index.htm other session files are deleted, a

. Net verification code page appears if the following error occurs. solution. Log on to the server error in '/' application.-------------------------------------------------------------------------------- Unable to make the session State request to the session state server. please ensure that the ASP. net state ser

Technical QQ Exchange Group: javadream:251572072Tutorials Download, online exchange: it.yunsit.cnI ran into this problem and searched the Internet.Problem Description: My problem is that when compiling the test program city using Javac, the following error occurred:Error: The main class could not be found or could not be loaded Com.sun.tools.javac.MainSolution: When this error occurs, Baidu, as a result, ma

1. Error resolution that cannot be refreshed with the page refresh: Modify source Code vendor/yiisoft/yii2/captcha/captchavalidator.php /** * @inheritdoc * * Public functionclientvalidateattribute($object, $attribute, $view) {$captcha=$this->createcaptchaaction ();$code=$captcha->getverifycode (true);$hash=$captcha->generatevalidationhash ($this->casesensiti

code_num = $ ("#code_num"). Val (); $.post ("Chk_code.php?act=num", {code:code_num},function (msg) {if (msg==1) {alert ("The CAPTCHA is correct! "); } else{Alert ("CAPTCHA Error! "); } }); }); }); Background chk_code.php Verification: Session_Start (); $code = Trim ($_post[' code '); if ($

($ this-> _ showVerify (), 'verify '); // display the verification code At this point, we have hidden the Verification Code. However, if you log on to this step, you will find that the verification code is incorrect, so we need t

file Vendor\yiisoft\yii2\captcha, including the captcha background color, font files and other settings can be found here. 2, Sitecontroller continue to configure. Public function behaviors () { return [ ' access ' + = ' class ' = ' AccessControl: : ClassName (), ' rules ' and ' = [' actions ' = [' login ', ' error ', ' Captcha '], True, ], ],

}, function (msg) { if (msg = = 1) { alert ("Verify code is correct!) "); } else { alert ("Authentication code Error!) "); } }); }); Digital + Letter Verification $ ("#getcode_char"). Click (function () { $ (this). attr ("src", ' code_char.php ' + math.random ()); }); $ ("#chk_char"). Cl

common directory[PHP] View plaincopy /** * Verification Code Check */ function check_verify ($code, $id = "") { $verify = New\think\verify (); return $verify->check ($code, $id); } B. Add a check code to the handler corresponding to the form submitt

, $height), $dis _color);}for ($i =0; $i {$char _color=imagecolorallocate ($image, Rand (0,2555), Rand (0,255), Rand (0,255));Imagechar ($image, Max, ($width/$num) * $i, Rand (0,5), $code [$i], $char _color);}Header ("Content-type:image/png");Imagepng ($image);//output image to browserImagedestroy ($image);//Release resources?> checkcode.php files are as follows The code is as follows

. $_session[6_letters_code]– the literal value of the verification code stored$_post[6_letters_code]– This is the content of the authentication code entered by the user We build a front page index.html, load jquery, and add a captcha form element to the body: The code is as follows Copy

Com.struts.util.DESEDE; public class Userserviceimpl implements UserService { Userdao Userdao = new Userdaoimpl (); Public User Login (string loginname, string password) { User user = Userdao.login (loginname); if (user = null) { System.out.println ("username does not exist, please check and login again!") "); } if (! Desede.decryptit (User.getf_password ()). Equals (password)) { System.out.println ("Password error"

Using the TP framework to write a landing interface, originally can display the verification code picture, but after the project has been transplanted, can not display the verification code picture, only display a white box, there is no verification

() {//Digital authentication $ (this). attr ("src", ' code_num.php ' + math.random ());}); $ (" #chk_num "). Click (function () {var code_num = $ (" #code_num "). Val (); $.post (" Chk_code.php?act=num ", { code:code_num }, Function (msg) { if (msg = = 1) { alert ("The CAPTCHA is correct!") "); } else { alert ("CAPTCHA Error! "); } }); }); Digital + Letter Verification $ ("#getcode_char"). Click (fun

, not the HTML code. When the browser is received, the following output is parsed into an image. Then write an HTML static page (testcaptcha.html) to create the form Just that is not enough, see the form submitted to the address? That is used to verify that the verification code enters the correct code:

code in the corresponding value position. One session, one verification code, and no session is registered. As long as the control is good, there should be no errors or a successful match.1. the verification code is generated in the background. And put it in the sessi

this method in the first article. /* Click "OK" and call the sendCaptcha method to submit the mobile phone number code (return code) to the server: SERVER: 0 success, 1 error; Local:-2 local network exception, -3 server network exception,-4 Resolution error,-5 initialization exception. Reason: the reason for the succe

codes. How PHP generates a verification code: generate an image with the verification code through the GD library, and save the verification code in the Session. 1. HTML 5. the HTML code