JDBC connects IDEA and SQL Server database
Steps of JDBC linking SQL Server database
SQL Server2014 database configuration:
(1). Open the installed SQL Server 2014 Management Studio, select SQL server authentication, and enter the user name (SA by default) and password,
(2). Open the security login, right-click sa, select attribute status, and set whether to allow connection to the da ...
Posted by harrisonad on Tue, 17 May 2022 23:58:36 +0300
Spring IOC -- configuring beans based on annotations
Spring IOC -- configuring beans based on annotations
1. Basic use
1. Description
● basic introduction
Beans are configured based on annotations, mainly components in project development, such as Controller, Service, and Dao
● the forms of Component annotation are:
@Component indicates that the current annotation identifies a component @ ...
Posted by echion on Tue, 17 May 2022 23:32:07 +0300
Java Web project creation and some instructions
Development tool: IntelliJ IDEA 2021.1.1
Development environment: JDK 1.8
Technology selection: servlet+jsp+mysql
Technology to help the development process: jstl JSP tag library maven jar package management lombok simplified code
Database creation
CREATE DATABASE shop CHARACTER SET utf8mb4;
CREATE TABLE client_TB(
clientId INT,clientName ...
Posted by wint.thaw on Sun, 15 May 2022 04:23:34 +0300
[Long Java Road] mybatis-plus
mybatis-plus
Getting Started
build table
CREATE TABLE USER
(
id BIGINT(20) NOT NULL COMMENT 'primary key ID',
NAME VARCHAR(30) NULL DEFAULT NULL COMMENT 'Name',
age INT(11) NULL DEFAULT NULL COMMENT 'age',
email VARCHAR(50) NULL DEFAULT NULL COMMENT 'Mail',
PRIMARY KEY (id)
);
INSERT INTO USER (id, NAME, age, email) VALU ...
Posted by loureiro on Fri, 06 May 2022 04:42:39 +0300
Maven Getting Started Tutorial (IDEA Version)
content
1. Introduction to Maven
1.1 How to import the jar package in the project?
1.2 What are the problems with the traditional way of importing jar packages?
1.3 Project Life Cycle
1.4 Introduction to Maven
Second, Maven installation and configuration
2.1 Maven download
2.2 Maven installation
2.3 Configure environment variables
3. ...
Posted by polybiosis on Tue, 03 May 2022 18:45:28 +0300
Java keyword: static
preface
The blogger will use CSDN to record the experience and knowledge gained and learned on the way of software development and study. Interested partners can pay attention to the blogger! Maybe a person walking alone can walk very fast, but a group of people walking together can go further! Let's learn from each other on the road o ...
Posted by whatever on Sun, 01 May 2022 15:24:57 +0300
Springcloud10 springboot integrates RabbitMQ
1, Springboot integrates RabbitMQIt is analyzed in six working modes1. New project2. pom.xml<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xs ...
Posted by binarynomad on Fri, 29 Apr 2022 18:16:54 +0300
Java project: nursing home management system (java+SpringBoot+thymeleaf+HTML+Js+mysql)
Source code acquisition: download from "resources" on the blog home page!
Project introduction
The nursing home management system based on springboot is a background management system, which is divided into three roles: Super administrator, administrator and user. The functions of super administrator and administrator are as follo ...
Posted by Firestorm ZERO on Fri, 29 Apr 2022 05:41:34 +0300
Java Web filters and listeners
11, Filter filter
11.1 what is a Filter
To access a servlet, you can go through the filter first, then access the servlet, and then go through the filter when returning. Draw a picture:
That is, a layer of filter is added before the servlet.
What's the use? For example, we can use it to deal with Chinese garbled code without adding such a ...
Posted by Xonnie316 on Tue, 26 Apr 2022 15:57:02 +0300
Sorting methods (8) detailed explanation 6 - quick sorting
catalogue
1. Quick sort overview
Principle:
Illustration:
Time and space complexity:
2. Quick sort classification
Quick sort (recursive version)
Quick sort (recursive optimization version): (filter better benchmark numbers, and insert sort is adopted for shorter intervals)
3. Code implementation and running results
main function:
Quic ...
Posted by nnichols on Wed, 20 Apr 2022 17:08:29 +0300