An article takes you to master the mainstream basic framework - Spring

An article takes you to master the mainstream basic framework - SpringIn this article, we will introduce Spring's framework and ontology, including core containers, annotation development, AOP, and transactions.So briefly explain the necessity of Spring:Spring technology is an essential skill for JavaEE development, and the selection rate ...

Posted by sgoldenb on Tue, 01 Nov 2022 12:17:46 +0300

STM32 serial communication

Table of contents 1. The purpose of the experiment Second, the register realizes lighting 1. Project creation 2. Write code 3. Burn and compile 4. Observe the output waveform of the GPIO port 3. HAL library lights up LED running lights 1. Install the HAL library ​Edit 2. Create a project 3. Configuration work (1) Clock configurat ...

Posted by Dvorak on Tue, 25 Oct 2022 07:03:00 +0300

Java-Gurobi study notes

I ran into an interesting problem recently, similar to the coloring problem. There are 24 grids that can be colored for us. There are three types of coloring, namely: yellow, blue, and red. The number of grids occupied by each color is different for each color, respectively, yellow occupies 1 2 squares for blue and 4 for red. In addition, we ...

Posted by blogfisher on Mon, 24 Oct 2022 10:06:27 +0300

Spring project autowiring & collection injection

1. Automatic configuration 1.1 What is dependency autowiring? The process that the IoC container automatically finds and injects into the bean according to the resources the bean depends on is called autowiring 1.2 What are the automatic assembly methods? By Type (Common)by nameBy construction methodAutowiring is not enabled 1.3 Prepare th ...

Posted by renu on Mon, 24 Oct 2022 08:38:13 +0300

Dictionary name [key name] = new value Modify the value of the dictionary

37. Dictionary name [key name] = new value Modify the value of the dictionary 1. Mutability of dictionaries Strings and tuples are immutable data types. Lists and dictionaries are mutable. Variable means that it can be changed, that is, elements can be added to lists and dictionaries, and existing elements can be deleted and modified. ...

Posted by buzzby on Mon, 24 Oct 2022 07:07:08 +0300

Imitation cattle project deployment

Aliyun ECS This is a one-month free trial , the basic operations are clearly written in the documentation Configuring CentOS 7.6 64-bit 2 vCPU 4 GiB (I/O optimized) Download PuTTY The password entered when connecting to Aliyun should be set here Download the required tools to root I can't use the teacher's method of copying the ...

Posted by soapsuds on Sun, 23 Oct 2022 06:03:16 +0300

Java uses tool classes to improve the efficiency of writing reports

The tool class and demo code repository in this article Why use java code to write reports For report data, in most cases, the method of writing sql is used to provide data sources for large screens/reports, but in some complex cases, it cannot be achieved by using only sql, or when it is difficult to achieve, it will be adopted to implement ...

Posted by patrickcurl on Sun, 23 Oct 2022 01:29:01 +0300

A Java-based Accounting Management System Completed by Computer

Code + paper download link: http://106.55.47.97/host-pictures/java.png Overview The Java accounting management system is mainly used for financial personnel to judge the development direction of the company from the accounts. For individuals and families, future consumption plans can be formulated through bookkeeping, so as to draw a clear ...

Posted by dotnotwhat on Sat, 22 Oct 2022 22:56:11 +0300

Vue uses Google Map

1. Prerequisites for use 1. Google developer account 2. The account should be bound with a debit card for subsequent api charges (it seems that mainland debit cards are not supported) 2. Add new projects and add referenced API s 3. Create a credential in the credential and get the key of the api Fourth, vue installation dependencie ...

Posted by cdm2 on Sat, 22 Oct 2022 05:27:24 +0300

Containerized Deployment - Kubernetes(K8S) Quick Start

Containerized deployment With the popularity of Docker technology, containerized deployment of projects is becoming more and more popular. The advantages of containerized deployment are as follows: ① It can ensure that each container has its own file system, CPU, memory, process space, etc. ②The resources required to run the application are ...

Posted by Hatch on Sat, 22 Oct 2022 02:38:03 +0300