Tag:Verification Code

  • Simple generation method of JSP verification code

    Time:2020-5-25

    In this paper, a simple generation method of JSP verification code is introduced. Share with you for your reference. The details are as follows: <%@ page contentType=”image/jpeg” import=”java.awt.*,java.awt.image.*,java.util.*,javax.imageio.*” %> <%! Color getrandcolor (int FC, int BC) {// get random color for given range Random random = new Random(); if(fc>255) fc=255; if(bc>255) bc=255; int r=fc+random.nextInt(bc-fc); int […]

  • Using session control to realize the function of page login and logout (source code of high value Wishing Wall instance)

    Time:2020-5-18

    First is a common landing page implementation Login.php Landing page User login user name password Remember my login status on this computer Sign in The login function realizes action.php “cyy”, “password” => “123456” ); } function sendLoginFailedResponse() { $response = ” Alert (‘wrong user name or password! ). window.location=’login.php’; “; echo $response; die; } function […]

  • 12306 fast ticket purchasing procedure

    Time:2020-5-15

    12306 fast ticket purchasing procedure catalog characteristic Environmental Science use contribution characteristic 1. Support multi person, multi seat, multi train intelligent vote. 2. Support manual and automatic identification of picture verification code. 3. Support proxy to prevent IP from being pulled black. 4. Simple configuration and convenient use. Environmental Science System: Windows\Max\Linux Python: 3.6 use […]

  • Simple implementation of nginx user login authentication

    Time:2020-5-14

    1. Install htpasswd tool yum -y install httpd-tools 2. Create an authenticated user Htpasswd – C pass.db Wang // Wang and enter the password Enter on next user addition htpasswd pass.db username The user name and encrypted password are generated in the / ETX / nginx / passwd.db file:myuser:YlmaHlkJnzhxG 3. Nginx adds two configurations: Add […]

  • Detailed explanation of PHP simple verification code function mechanism

    Time:2020-5-14

    The example of this paper describes the functional mechanism of PHP simple verification code. To share with you for your reference, as follows: The security of website is a problem that developers can’t ignore. At present, one of the most widely used methods to improve the security of website is to use the function mechanism […]

  • Directory: powerful Django 2.2 + killer xadmin development online education website (New Development)

    Time:2020-5-6

    Powerful Django + killer xadmin to create online standard online education platform Chapter 1 Introduction Course introduction and learning arrangement 1-1 powerful Django + killer xadmin to create online standard online education platform Chapter 2 construction of development environment Linux This chapter will lead you to install Linux through virtual machine on windows, and install […]

  • The solution of canceling eslint verification code in vue-cli3

    Time:2020-5-5

    I found all kinds of solutions on the Internet, but they didn’t solve the problem. After reading the following document, I solved the problem of closing vue-cli 3.0: eslint disable next line to ignore the next line resolvent: Find the file vue.config.js (note here I am vue-cli 3.0) and open the file Modify lintonsave to […]

  • Basic information of GD library, image rotation, watermark, thumbnail, verification code, and image class encapsulation

    Time:2020-5-2

    GD library detection       GD library installation• windows uses phpstudy • Linux compilation and installation – with GD• Linux compilation and installation extension Image formats supported by GD Library Using the GD ﹣ info() function to detect the image formats supported by the server   Image information processing     <?php //获取图像详细信息 $image […]

  • Asp.net core Tencent verification code access example code

    Time:2020-5-1

    Intro The previously used verification code service is a polar verification service, which is older, accessed a long time ago, and the verification code service relies on session, which is a bit inflexible. Later, it was found that Tencent also has verification code service, supports small programs, and is the only verification code that supports […]

  • Using flask WTF to make a login form with verification code

    Time:2020-4-25

    Pit encountered by flask WTF in useFlask-WTFWhen usingqucik_form()It’s really cool to generate forms quickly, but the style of the generated form is not what you want, so you can’t use it at this timequcik_form()Now. PS: not very familiar at presentFlask-WTFVerify the principle of the form, such asRequire()The validation should use js,EqualToThis kind of processing is […]

  • Verification code countdown

    Time:2020-4-25

    Verification code countdown <span style=”background-color: #f5f5f5; color: #800000;”> .btn</span><span style=”background-color: #f5f5f5; color: #000000;”>{</span> <span style=”background-color: #f5f5f5; color: #ff0000;”> color</span><span style=”background-color: #f5f5f5; color: #000000;”>:</span><span style=”background-color: #f5f5f5; color: #0000ff;”>red</span><span style=”background-color: #f5f5f5; color: #000000;”>;</span> <span style=”background-color: #f5f5f5; color: #000000;”>}</span> <span style=”background-color: #f5f5f5; color: #800000;”> .dian</span><span style=”background-color: #f5f5f5; color: #000000;”>{</span> <span style=”background-color: #f5f5f5; color: #ff0000;”> color</span><span style=”background-color: #f5f5f5; color: […]

  • Local refresh verification code implemented by JSP + Ajax (onblur event triggers verification)

    Time:2020-4-12

    The example of this paper describes the local refresh verification code (onblur event triggered verification) implemented by JSP + Ajax. To share with you for your reference, as follows: Foreground display page: welcome.jsp <%@ page language=”java” contentType=”text/html; utf-8″ pageEncoding=”utf-8″%> <!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd”> <html> <head> <meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″> < title […]