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1. Introduction Persistence Layer Framework, java Writing It encapsulates jdbc internally, so that developers only need to pay attention to sql statement s themselves, and do not need to spend energy to deal with the complicated process of loading driver, creating connection, creating state and so on ...

[Summary of Previous Situation] This spring-boot-starter-quartz cluster has been put into practice because a project needs a timed task cluster.The springboot version is 2.1.6.RELEASE; the quartz version is 2.3.1. If there are two timer task nodes here, their code is exactly the same. 1.jar package dependency <properties> <ja ...

mybatis global configuration file loading In the previous article, SqlSession FactoryBuilder was mentioned to load various resources in the configuration file by calling the parse method in the XML ConfigBuilder. In the parse method, the parseConfiguration method is mainly called to load the configura ...

Articles Catalogue 1. Beans in Spring are generated according to scope, representing the scope of bean s. 2.Spring's inheritance, 3.Spring's dependence. 4.Spring reads external resources. 1. Beans in Spring are generated according to scope, representing the scope of bean s. There are four types ...

There are two kinds of requirements for multi-database configuration: one is that the project is too big and the amount of visits is too high, so many applications have to distribute multiple databases to ease the pressure of accessing. The other is that two different database services should be integrated together now, even if the database is ...

JDBC The concept of JDBC target Learn the concepts of JDBC Learning the Role of JDBC The Way of Client Operating MySQL Database Use DOS command line mode Use third-party clients to access MySQL: SQLyog, Navicat, SQLWave, MyDB Studio, EMS SQL Manager for MySQL Accessing MySQL database through ...

Catalog I. Direct Encapsulation of JDBCUtils Tool Class Encapsulation of JDBCUtils Tool Class with properties Profile 1. Use Properties Profile 2. Create configuration files 3. Loading configuration files I. Direct Encapsulation of JDBCUtils Tool Class In the development of JDBC, it is found ...

I. Preface Any report has a data source, which is the source of all data. JasperSoft is no exception, of course, because it supports rich data source adapters. For example, common Jdbc, MongoDB, Json, JNDI, and even our custom implementation of JRDataSource are possible. As shown in the figure below, ...

Articles Catalogue 1. Integration Thought 2. Integrating jar packages needed 3. Integration steps 3.1. Creating Engineering 3.2. Importing jar packages 3.3. Add configuration files 3.3.1. Configure SqlMapConfig.xml 3.3.2.applicationContext.xml 3.3.3. Configure db.properties 3.3.4. Configure log4j.p ...

Introduction to MyBatis Foundation content 1. Introduction to MyBatis 2.MyBatis Starter Program 3.MyBatis uses Mapper interface 4. Config file configuration for MyBatis I. Introduction to MyBatis 1. Introduction 1.Mybatis is consistent with Hibernate and is an open source ORM framework. MyBa ...