Programmer Think

Things about MyBatis The concept of things In the framework of Java language database, the transaction management of database is very important. Each business logic is completed by a series of database accesses, which may modify multiple data records. This series of modifications should be a whole, and it is absolutely not allowed to modify onl ...

MybatisGenerator extension: Custom comment generator I believe you have a certain understanding of the mybatisgenerator. I love and hate it. The code generated by the mybatisgenerator plug-in will generate comments, which are all useless to us. Although it can prevent the generation of comments, it is not good to have no comme ...

1. The relationship between spring container and spring MVC container Spring container is a parent container, and spring MVC container is a child container, which inherits from spring container. Therefore, in the spring MVC container, you can access the beans defined in the spring container, while in the spring container, you cannot access the ...

1. Initial Actiti Because of recent project requirements requiring the use of processes, the active process framework has been chosen. Most of the integration of springboot version 2.0 and activiti6.0 is online. Since the project already uses springboot 2.0, the process of integrating activiti7 is recorded. Personal impression of activiti: 1. ...

Using JDBC Step 1: add dependency In the previous article, we talked a lot about how to reimport after adding dependency, which is not repeated here <!-- JDBC --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> ...

Analyzing how Mybatis integrates into the framework using Spring's extension points, Mybatis's own extension points are no longer covered in this analysis Build environment Upload Github https://github.com/mybatis/spring .After several unsuccessful attempts through Git, the zip package was directly downloaded and imported into Idea. The imp ...

Overall project structure bean code package bean; public class Apply { private long id; private String sname; private String qq; private long enterTime; private String type; private String school; private long number; private String repLink; private String goal; @Override public String toString() { ...

spi is the abbreviation of Service Provider Interface. Using spi technology, we can change the implementation class of an interface in a program by modifying the configuration, so as to change the program behavior. The usage of spi is as follows: Define the interface. package com.foo.bar.service; public interface Foo { String foo(String n ...

Preface The goal of the Spring Data Jpa framework is to significantly reduce the amount of boilerplate code required to implement the data access layers of various persistent stores. The central interface in the Spring Data Jpa Repository abstraction is Repository. It needs domain entity class and domain entity ID type as type parameters for ma ...

I. about Quartz Quartz is another open source project of OpenSymphony open source organization in Job scheduling field. It can be combined with J2EE and J2SE applications or used alone. In java enterprise applications, quartz is the most widely used timing scheduling framework. Main concepts in Quartz: Scheduler: the main API for scheduling ta ...