Programmer Group

catalogue 1. set injection (key) 2. Scope of Bean   2.1,Singleton 2.2, Prototype 2.4, Session Dependency injection (DI). Dependency: the creation of a Bean object depends on the container. The dependent resources of a Bean object Injection: refers to the resources that the Bean object depends on, which are set and assembled by the c ...

🌈 I'm lucky to meet you. I'm Xiao Xiang. Have a big factory dream, work hard! Come on, stranger! 🌈 ☁️ This article is the notes and experience of learning Mybatis from the crazy God of station B. if it is useful to you, thank you for your praise. The article inevitably has shortcomings. Please point out that I will correct it in time! T ...

catalogue Article catalog preface 1, Create Maven project 2, POM configuration 1. Configure JDK version and encoding method 2. Set resource file path   3. Add dependency 4. All of POM documents 3, Initialization data   4, Configure mybatis-config.xml 5, Configure config.properties 6, Configure log4j.properties 7, Create t ...

This page will introduce an example of Spring Boot Tomcat JDBC connection pool. Tomcat connection pool supports high concurrency environment with high performance. Tomcat connection pooling is very simple because its implementation is very simple. Tomcat connection pool has the ability to configure custom interceptors to better handle id ...

Chapter 4 appointment management - scheduled tasks Quartz, appointment settings 1. Timed task component Quartz [Objective] Scheduled task component Quartz Clear the garbage pictures generated by file upload [path] 1: Introduction to Quart Master the scene (scheduled task) 2: Introduction to Quartz Spring integration Quartz (configured ...

Configuration introduction in general: source is used to receive data sinks are used to send data channel is used to cache data The following are some related types that will be used later. 1.Source component type (used to receive data sent from a certain place) Netcat Source Accept the request data from the data client, which is often ...

Data collection jsoup -jsoup introduction: 1. jsoup is a Java HTML parser, which can directly parse a URL address and HTML text content. 2. The main functions of jsoup are as follows: -Parsing HTML from a URL or string; -Use DOM or CSS selector to find and retrieve data; -Operable HTML elements, attributes and text; 3. jsoup is released based ...

project Eclipse editor, create a new project student using maven's parent-child module function, which is divided into three modules: student web,   student-setting, student-util. Student web is packaged as a war package. As a project, student setting and student util are packaged as jar packages and introduced into student web as depend ...

1. Create a new MAVEN project and import the required dependent and static resource files <dependencies> <!--junit rely on--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> </dependency&g ...

Project notes 1, Project introduction This is a simple CRUD(Create Retrieve Update Delete) web page project based on SSM framework. The IDE used is IDEA2021.1. Due to the time problem, this article will introduce the first two parts. The problems and solutions that are easy to encounter in the project will be given in the following articl ...