mybatis系列教程(二)——spring整合mybatis

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

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><!-- spring --><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><!-- spring --><!-- mybatis --><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><!-- mybatis --><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">     <!-- 配置数据源 -->    <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>     <!-- 注册、配置sqlSessionFactory -->    <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

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。