MyBatis reverse engineering: automatically generate model, xml Mapping file and mapper interface according to data table

Use of MyBatis Generator (MBG) MBG can generate the corresponding model, xml Mapping file and mapper interface according to the data table, which is just a simple generation and needs to be modified according to the needs.   1. Download jar package https://github.com/mybatis/generator/releases After decompression, there are three jar packages, ...

Posted on Wed, 22 Jan 2020 07:40:32 -0800 by ATLien

Spring boot series uses Mybatis to integrate pagehelper paging plug-in and mapper plug-in

Preface In Article 11 of the spring boot series( Accessing the database using Mybatis ), we have experimented with the development process of generating plug-ins by combining spring boot with Mybatis and Mybatis generator. In fact, there are many excellent and easy-to-use plug-ins for Mybatis, such ...

Posted on Tue, 21 Jan 2020 23:50:57 -0800 by icon4tech

Annotations at the core of the MyBatis framework use resultMap and multitable queries

A few days ago, I found annotations troublesome and suddenly realized that compared to the traditional mapper.xml+ interface, XML uses interface mapping more troublesome, so we can use annotations to simplify development. Here is a brief introduction to the use of @Results, @Result, @One and @Many. This ...

Posted on Tue, 21 Jan 2020 17:46:12 -0800 by Jebs

0120 springboot integrates Mybatis and code generator

In daily development, Data Persistence technology uses three shelves with the highest frequency, namely spring JDBC, spring JPA, spring mybatis. For details, see my previous article Three shelves of spring operation database . Spring JDBC package is less, need to splice sql in the code, not suitable for large-scale enterprise level development. ...

Posted on Mon, 20 Jan 2020 03:34:55 -0800 by misfits

java array and its memory management

How is memory allocated during array creation? What are the ways to initialize java arrays? . . . . . . A series of questions let us explore array Initialization of arrays java array is static, that is, when the array is initialized, the memory space occupied by the array and the length of the ...

Posted on Sun, 19 Jan 2020 01:59:45 -0800 by lavender

SSM framework note 01: MyBatis

1, What is MyBatis (1) MyBatis overview MyBatis is an excellent persistence framework that supports normal SQL queries, stored procedures, and advanced mapping. MyBatis eliminates almost all manual setup of JDBC code and parameters and retrieval of result sets. MyBatis uses simple XML or annotations f ...

Posted on Sun, 19 Jan 2020 00:08:14 -0800 by dannymc1983

Spring Boot 2.X: integrated mybatis plus efficient development

Preface This paper introduces the operation of adding, deleting, modifying and querying the database by integrating Mybatis with SpringBoot, and gives two ways to implement the mapper interface: xml and annotation. Although the annotation method kills the xml file, it is not elegant to use. This paper will introduce the common examples of mybat ...

Posted on Thu, 16 Jan 2020 21:50:24 -0800 by Chrisj

Basic use of 02mybatis

1. Create the resource folder config under the web directory, add the log4j.properties and SqlMapConfig.xml configuration files 2. Create log4j.properties under config as follows:   # Global logging configuration log4j.rootLogger=DEBUG, stdout # Console output... log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.ap ...

Posted on Thu, 16 Jan 2020 10:17:37 -0800 by mrjiggyhill

SSM integrates Spring Security

This document mainly records that the SSM framework integrates Spring Security to perform account login operations. MyBatis has been integrated and basic operations have been omitted Entity User First, you need to define the dto of the User entity public class User{ @Id//Identifying the prima ...

Posted on Thu, 16 Jan 2020 05:20:51 -0800 by Gondwana

In a moment, the topic body of personal space design pattern goes deep into MyBatis source code to understand the adapter pattern of Java design pattern

What is adapter mode Definition: transform the interface of a system into another form, so that the interface that cannot be called directly can be called. Adapter pattern role division The adapter pattern involves three roles: 1. Adapter: the object or type to be adapted, equivalent to the plug ...

Posted on Tue, 14 Jan 2020 19:06:39 -0800 by ron8000