Using QueryWrapper to implement and or and brackets in MybatisPlus

Environment introduction Spring Boot version <version>2.0.6.RELEASE</version> jdk version <java.version>1.8</java.version> Version used by mybatis plus <mybatis-plus.version>3.1.0</mybatis-plus.version> Dependencies used by mybatis plus <!-- mybatis-plus --> <dependency> &lt ...

Posted on Tue, 12 Nov 2019 11:57:37 -0500 by Ayon

Source code analysis: scanning and building Mapper object initialized by Mybatis MapperProxy

Warm tip: This article is based on Mybatis.3.x version. MapperScannerConfigurer, Spring integrates the core class of Mybatis. Its function is to scan the Dao class in the project and create it as the mapper object of Mybatis, namely MapperProxy object. First of all, before entering the source code learning, let's take a look at the configurat ...

Posted on Tue, 12 Nov 2019 06:59:14 -0500 by subasi

9. Merchandise Modification Function of SpringMVC Annotation Development

Develop mapper Generate code using reverse engineering mybatis-generator. Develop service Add two interfaces to com.iot.learnssm.firstssm.service.ItemsService /** * Query commodity information based on id */ ItemsCustom findItemsById(Integer id); /** * Modify commodity information */ void updateItems(Integer id,ItemsCustom itemsCustom); Imple ...

Posted on Mon, 11 Nov 2019 21:52:50 -0500 by Destruction

MyBatis configuration and critical component combing

1. Why MyBatis Profile In fact, MyBatis profiles are rarely used anymore, because we don't usually use MyBatis alone, but with Spring. In Spring, we typically configure a SqlSessionFactoryBean to create a SqlSessionFactory, whereas we typically do not create a SqlSessionFactory by parsing the configuration file. But configuration files are impo ...

Posted on Mon, 11 Nov 2019 19:51:00 -0500 by ytse

A simple tutorial for SpringBoot to integrate MybatisPlus (simple integration)

Recently, I am studying spring boot, and I will look at the knowledge of database connection by the way. So when I found that there are two popular excellent software on the network, Mapper and MybatisPlus, which can simplify the development of mybatis. Just want to have a try and see which one suits you better. First, create a spring boot pro ...

Posted on Mon, 11 Nov 2019 15:06:26 -0500 by atzi

Framework profile for SSM

Relevant configuration files of SSM Spring framework applicationContext.xmlThe core configuration file of Spring framework <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/sc ...

Posted on Mon, 11 Nov 2019 10:56:24 -0500 by Ceril

[springboot development monomer web shop] 5. User login and homepage display

User login and front end display User login In the previous article, we implemented the function of user registration and authentication, and then we continued to implement its login, as well as the information to be displayed on the page after successful login. Next, let's write the code. Implement service Add user login method in com.liferu ...

Posted on Mon, 11 Nov 2019 08:54:55 -0500 by fragger

CRUD based on Mybatis-Plus

Using mybatis-plus to automatically generate code for five modules (xml/bean/mapper/service/controller), here is a practice of CRUD under the mybatis-plus framework. Or the original springboot project. mybatis-plus is also an enhanced version of mybatis. It does not change the original function of mybatis, but adds some new functions to improve ...

Posted on Sun, 10 Nov 2019 01:14:06 -0500 by synking

Java spring cloud b2b2c social e-commerce spring cloud distributed micro service spring boot integration mybatis

Introducing dependency E-commerce social platform source code Please add Penguin: 103874626. The dependency of introducing mybatis spring boot starter in pom file: <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter<artifactId> <version>1.3.0< ...

Posted on Sat, 09 Nov 2019 14:25:18 -0500 by stig1

java b2b2c social e-commerce spring cloud distributed microservice springboot enables declarative transaction

E-commerce social platform source code Please add Penguin: 103874626. springboot is very simple to start a transaction, only one annotation is needed @Transactional Just fine. Because in springboot, events have been enabled for jpa, jdbc and mybatis by default. When they are introduced, things will be enabled by default. Of course, if you need ...

Posted on Fri, 08 Nov 2019 16:23:00 -0500 by ed01