PHP login / register background authentication instance

PHP+MYsql+Ajax realizes the provincial and city level linkage and user registration / login verification Project directory Database design Provincial urban database User database Database information page "conn.inc.php" <?php define("HOST",'localhost'); define("USER",'root'); define("PWD",' ...

Posted on Wed, 05 Feb 2020 09:33:43 -0500 by perfume

Security - Spring Security

Catalog 1. Simple safety certification 1.1 simple implementation 1.2 implementation principle 2. Use WebSecurityConfigurerAdapter to customize 2.1 user defined service information 2.1.1 using memory signature service 2.1.2 use database to define user authentication service 2.1.3 using user-de ...

Posted on Wed, 05 Feb 2020 08:55:51 -0500 by mark_and_co

Mongodb uses YCSB performance pressure test

Background In recent days, we have done a benchmark stress test for all the basic components. At present, none of our open-source basic components has done a performance test. Developers often ask how much our RDS and MongoDB clusters can resist. At this time, I can't reply because I don't know. Although a database cluster can resist how much, ...

Posted on Wed, 05 Feb 2020 06:55:47 -0500 by AcidDriver

Ajax&Ajax asynchronous verification of user name in Java

Ajax Asynchronous JavaScript And XML (Asynchronous JavaScript And XML) is a web development technology that creates interactive web applications. Ajax is not a new technology, but a combination of original technology. It is composed of the following technologies: Using CSS and XHTML to represent Int ...

Posted on Wed, 05 Feb 2020 04:23:14 -0500 by ernielou

Implementation of Paging in SpringBoot Blog System

1. Introduction In blog article list pages and background article management, not all article information is displayed, but by page through paging function, the use of paging function can improve system performance, more in line with user habits, page design Reduce the consumption of system resource ...

Posted on Tue, 04 Feb 2020 22:23:32 -0500 by mapunk

Algorithm and data structure 2

Algorithms and data structures 02 linear and binary lookups (queues and stacks) Linear search: sequential search, slow package com.kele; import java.sql.SQLOutput; import java.util.Arrays; /**Queue: first in, first out * @author 12402 */ public class MyQueue { private int[] arr; public ...

Posted on Mon, 03 Feb 2020 12:47:43 -0500 by Canadian

2020 pro test + QT5.14+OCI driven compilation and problem solving + basic use

1. Complete steps of OCI driven compilation under qt5.14 1. When installing qt, manually select the Source resource to install (Source is not installed by default) 2. Enter the QT installation directory E:\Qt5.14.14.0\Src\qtbase\src\plugins\sqldrivers\oci Double click to open oci.pro file with qtcrea ...

Posted on Sun, 02 Feb 2020 03:31:14 -0500 by elentz

Analysis of the execution process of Mapper interface of MyBatis

Mabtis, as an excellent persistence framework, not only improves our development efficiency, but also has the characteristics of convenience and rapidity. Usually when we configure MyBatis, we will configure a series of Mappers interface classes to MyBatis. However, if we do not configure these Mappe ...

Posted on Sun, 02 Feb 2020 01:48:41 -0500 by Mastermind

Flight query management system

Project type: java Web project Implementation language: Java Environment requirements: eclipse, JDK 1.8.0_, tomcat-8.5.31, MySQL 8.0.18, jquery-3.4.1 Functional requirements: 1. Create data table, create primary key, set primary key auto increment, and add test data 2. Use development tools to create a ...

Posted on Sat, 01 Feb 2020 10:09:23 -0500 by ryanh_106

Basic usage of django2.0 models.py

ORM model Before writing the basic usage of models.py, let's first understand the disadvantages of our own writing of sql: As we write more and more projects, if we continue to use native sql statements to write, the following problems will occur: The reuse rate of SQL statements is not high. The mor ...

Posted on Sat, 01 Feb 2020 02:29:42 -0500 by ankur0101