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Development Environment: IntelliJ IDEA 2019.2.2Spring Boot Version: 2.1.8 Create a new SpringBoot project named demo. 1. Default Profile Spring Boot reads the configuration file with the name application.properties(yml).If there are multiple files with the same name, by default, they are read in the following order:(1) The config directory o ...

reflex Article directory reflex Summary Definition purpose Relevant Classes of Reflection Mechanisms Class Class Class Field Class Method Constructor class 1. Several Ways to Get Class Objects Student object Several Methods of Obtaining Class Objects 2. Get the construction method and use it 3. ...

Introduction to 1 dynamic-datasource This framework only does the core thing of switching data sources and does not restrict your specific operations. Highly recommended in master-slave mode Follow the general rules so that others can understand your code more easily. The primary database recommends ...

This article contains: SpringBoot's automatic configuration principle and how to customize SpringBootStar, etc. We know that when using SpringBoot, we only need to start a Web program directly as follows: @SpringBootApplication public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplic ...

Simulate registration - use annotations Simulate registration functionality (using annotations) DAO Layer Code Service Layer Code Presentation Layer Code Test Code applicationContext.xml Pure Annotation Configuration problem Sample Code Getting Started Simply Explain Configuration steps Step 1: Cr ...

After Ignite cluster is built, the application can access the cluster for various operations. But the default cluster has no security protection mechanism. Any application and client supporting JDBC can access the cluster as long as they know the IP address of the cluster node, which creates a certain security risk, which is sensitive to holdin ...

Spring02 1. Content introduction 1. Spring Configuration Data Source 2. Spring Annotation Development 3. Spring integrates Junit Learning objectives 1) Knowing the data source (the role of connection pools) 2) Ability to complete Spring configur ...

1. Introduction to JDBC JDBC (Java Data Base Connectivity, Java Database Connectivity) states that JDBC is a set of API specifications for Java access to databases; Spring Boot supports the mainstream ORM frameworks: MyBatis, Hibernate, and Spring JDBC. Several ORMs have their own advantages in different scenarios and have corresponding Sta wi ...

Abstract factory pattern Used to produce all products of different product families. (There is nothing we can do to add new products; support the increase of product family) Abstract factory pattern is an upgraded version of factory method pattern. ...

The table for this example query is Hibernate Learning Notes (6): Many-to-One Mapping and One-to-Many Mapping Table used. Test program CacheDemo.java: package com.hibernate.cache; import org.hibernate.SessionFactory; import org.hibernate.Trans ...