Programmer Think

Catalogue of series articles The purpose of this article is to explain in detail the six steps of connecting to a database using JDBC   The first step is to register the explanation link of the driver: JDBC - MySQL registers the driver (reflection) in the way of class loading_ m0_56164356 blog - CSDN blog // 1. Register drive ...

JDBC introduction JDBC(Java Database Connectivity) is a common interface (a set of API s) independent of a specific database management system and general SQL database access and operation. It defines the standard Java class libraries used to access the database (java.sql,javax.sql). These class libraries can be used to access database res ...

JDBC overview Data persistence Persistence: save data to a power down storage device for later use. In most cases, especially for enterprise applications, data persistence means saving the data in memory to the hard disk for "solidification", and the implementation process of persistence is mostly completed through various relat ...

front word : \textcolor{blue} {Preface:} preface: 💥MyBatis learning source code in gitee 💥 The code used can be found here 8, Annotation development 1. Interface ...

preface Hello, ladies and gentlemen, little tu started learning JDBC today, so I'd like to send you a "fresh" learning blog As we all know, Java application and database are two different systems, so how do we combine them? At this time, our "middleman" - JDBC, through this blog, we can let readers know how to realize ...

Spring boot for multi data source configuration springBoot implements the configuration of multiple data sources application.properties Configure two data sources in spring.datasource.primary.url=jdbc:mysql://localhost:3306/test1 spring.datasource.primary.username=root spring.datasource.primary.password=root spring.datasource.primary.driv ...

For the mybatis framework. It seems to be used in copy all the time. For mybatis caching. There is no accurate cognition. Take advantage of the holiday. Learn the cache of mybatis. This article mainly studies the first level cache of mybatis. Why cache In fact, we have been working for a long time, and we know that many bottlenecks ar ...

Initialize global configuration through settings configuration When it comes to initializing the global Configuration of Mybatis through settings, it is difficult for us to bypass the Configuration object of Mybatis. Configuration object is undoubtedly one of the core objects of Mybatis. It defines many properties and methods. In the process of ...

Parsing environment elements to complete multi environment configuration in Mybatis After finishing the tedious process of configuring the Configuration object based on settings, it's time to parse the environments tab and configure the Mybatis multi environment. Mybatis supports multi Environment configuration by default. There is an Environme ...

JdbcTemplate JdbcTemplate is an object provided in the spring framework, which functions as QueryRunning and is a simple encapsulation of the original Jdbc API object. The spring framework provides many template classes that are facing different database types. Operational relationship data: JdbcTempl ...