Employee management system

catalog 1. Function introduction and display (multi figure warning) 2. Code design 1 database 2 login interface and verification 3 main interface 4 change of information 5 information display Tip: this semester, Java class is going to do a project of employee management system. When we first hea ...

Posted by Garethp on Mon, 22 Jun 2020 22:40:29 -0700

010.OpenShift comprehensive experiment and Application

Experiment 1 install OpenShift 1.1 preparation [student@workstation ~]$ lab review-install setup 1.2 configuration planning OpenShift cluster has three nodes: master.lab.example.com: the OpenShift master node is a node that cannot be scheduled for pod. node1.lab.example.com : an OpenShift node that can run applications and infrastructure pod s ...

Posted by jmcc on Mon, 22 Jun 2020 20:48:05 -0700

How to write one to many page SQL?

1. Preface One to many paging of MySQL data is a very common requirement. For example, we need to query the product and the image information of the product. But many people will encounter the mistake of pagination here and get incorrect results. Let's analyze and solve this problem today. 2. Problem analysis First, we create a simple product ...

Posted by cs-web on Mon, 22 Jun 2020 20:39:35 -0700

Compound query of database

Compound query The query of mysql table mentioned before is to query a table, but it is not enough in the actual development. select * from where (sal>500 or job='MANAGER')and eame like 'J%' Sort by department number in ascending order and employee's salary in descending order select * from EMP ro ...

Posted by marty_arl on Sun, 21 Jun 2020 20:03:16 -0700

Take the questions like this, and kill the leetcode questions

Today, let's talk about the problem-solving methods of dfs. These methods are all the experiences after summing up, which are worth learning. Looking at dfs from binary tree In fact, the idea of binary tree is very simple. When we just started to learn binary tree, the most common way to do binary tree traversal is recursive traversal. In fact, ...

Posted by guymclaren on Sun, 21 Jun 2020 19:17:41 -0700

SSM + Layui table delete, add and modify, pagination

Delete, batch delete, add and modify SSM + Layui tables, pagination Delete (batch delete) increase Form validation method 1 Form submitted twice paging Form validation (using form.verify Combined with ajax) Modify and edit summary Delete (batch delete) This problem was encountered during the c ...

Posted by newhen on Sun, 21 Jun 2020 18:47:53 -0700

MySQL 5.5 Source Installation - Cmake (Multiple Instances)

1. Environment OS environment: Linux db01 2.6.32-431.el6.i686 MySQL version: mysql-5.5.44 MySQL installation path: /usr/local/mysql MySQL data path: /data MySQL port: 3506 3507 2. Preparations 1. Dependent Package Installation yum install ncurses-devel libaio-devel gcc gcc-c++ bison -y 2. Install compiler ...

Posted by m4rw3r on Sun, 21 Jun 2020 09:59:11 -0700

LAMP yum installation - Centos 7

Centos 7 yum install LAMP Author: Yan Tao E-mail: coderyantao@qq.com Note: the experimental environment is virtual machine, selinux and firewalld have been shut down Official Apache 2.4 documentation https://httpd.apache.org/docs/2.4/ #View port [root@localhost ~]# firewall-cmd --query-port=80/tcp no ...

Posted by Linjon on Sun, 21 Jun 2020 03:01:40 -0700

[programming basics] Python configuration file reading library ConfigParser summary

The Python ConfigParser tutorial shows you how to use ConfigParser to use configuration files in Python. Article catalog 1 Introduction 1.1 Python ConfigParser reading files 1.2 sections in Python configparser 1.3 Python ConfigParser reading data from strings 1.4 Python ConfigParser reading data fro ...

Posted by turboprop on Sun, 21 Jun 2020 02:23:45 -0700

Packaging and deployment of SpringBoot and Mysql application Docker

This paper implements a simple springboot+mysql application (ip count based on user access and stored in mysql database), builds a docker image for the application, implements the deployment of docker container and the docking with mysql container Docker installation You can install docker desktop f ...

Posted by friedemann_bach on Sun, 21 Jun 2020 00:02:11 -0700