mybatis系列教程(二)——spring整合mybatis

红太狼 2022-06-13 13:21 200阅读 0赞

## 项目地址 ##

项目地址：https://code.csdn.net/luo4105/study\_mybatis/

## Spring整合mybatis ##

## 实现 ##

接着上节的思路，把数据源和mapper的映射配置在spring的配置文件，把SqlSessionFactory对象、SqlSession对象、UserMapper对象都在Spring中注册，实现spring整合mybatis。

项目结构

![Center][]

mvn依赖

<properties>
    	<org.springframework-version>4.3.7.RELEASE</org.springframework-version>
    	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    	<java-version>1.8</java-version>
    </properties>
    
    <dependencies>
    	
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-aop</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-beans</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-context</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-core</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-expression</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-jdbc</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-test</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	<dependency>
    		<groupId>org.springframework</groupId>
    		<artifactId>spring-tx</artifactId>
    		<version>${org.springframework-version}</version>
    	</dependency>
    	
    	
    	
    	<dependency>
    		<groupId>org.mybatis</groupId>
    		<artifactId>mybatis</artifactId>
    		<version>3.4.1</version>
    	</dependency>
    	<dependency>
    		<groupId>org.mybatis</groupId>
    		<artifactId>mybatis-spring</artifactId>
    		<version>1.3.1</version>
    	</dependency>
    	
    	
    	<dependency>
    		<groupId>mysql</groupId>
    		<artifactId>mysql-connector-java</artifactId>
    		<version>5.1.35</version>
    	</dependency>
    	
    	<dependency>
    		<groupId>commons-logging</groupId>
    		<artifactId>commons-logging</artifactId>
    		<version>1.2</version>
    	</dependency>
    	<dependency>
    		<groupId>junit</groupId>
    		<artifactId>junit</artifactId>
    		<version>4.12</version>
    	</dependency>
    </dependencies>

项目还是之前的项目，只是添加了

spring-config.xml ：spring的配置文件

UserMapperTestInSpring：配置测试类

spring-config.xml

<?xml version="1.0"encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
           http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-4.0.xsd">
     
        
        <bean id="dataSource"
           class="org.springframework.jdbc.datasource.DriverManagerDataSource">
           <property name="driverClassName" value="com.mysql.jdbc.Driver" />
           <property name="url" value="jdbc:mysql://localhost:3306/study_mybatis"/>
           <property name="username" value="root"/>
           <property name="password" value="123456"/>
        </bean>
     
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
           <property name="dataSource" ref="dataSource" />
           <property name="mapperLocations" value="com/lc/mapper/*.xml" />
        </bean>
     
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
           <property name="basePackage" value="com.lc.dao" />
           <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
        </bean>
    </beans>

UserMapperTestInSpring

import java.util.List;
     
    import org.junit.Test;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
     
    import com.lc.model.User;
     
    public classUserMapperTestInSpring {
     
        private staticClassPathXmlApplicationContext context = null;
        private static UserMapper userMapper;
     
        static {
           context = newClassPathXmlApplicationContext("com/lc/config/spring-config.xml");
           context.start();
           userMapper = context.getBean(UserMapper.class);
        }
     
        @Test
        public void select() {
           List<User>userlist= userMapper.select();
           for (User user : userlist) {
               System.out.println(user);
           }
        }
     
        @Test
        public void delete() {
           if (userMapper.delete(1) >0) {
               System.out.println("del success");
           }
        }
    }

## 运行 ##

![Center 1][]

## 总结 ##

注意配置中SqlSessionFactoryBean，它还有很多属性，如设置别名、设置mybatis配置文件(如果有)，详细的可以看看文档：[http://javadox.com/org.mybatis/mybatis-spring/1.1.1/org/mybatis/spring/SqlSessionFactoryBean.html][http_javadox.com_org.mybatis_mybatis-spring_1.1.1_org_mybatis_spring_SqlSessionFactoryBean.html]。

[Center]: /images/20220613/94c4b478252f4ef5897bb178168cc42d.png
[Center 1]: /images/20220613/0a6620711e93491290bd52ee290b694f.png
[http_javadox.com_org.mybatis_mybatis-spring_1.1.1_org_mybatis_spring_SqlSessionFactoryBean.html]: http://javadox.com/org.mybatis/mybatis-spring/1.1.1/org/mybatis/spring/SqlSessionFactoryBean.html