1.导入jar包
<!--MyBatis和Spring的整合包 由MyBatis提供-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!--MyBatis的核心jar文件-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
2.整合MyBatis与Spring
1.创建实体类
public class Bank {
private String code_crde;
private String code_name;
private String code_money;
}
2. 搭建Dao层
public interface IBankDao {
//查询
List<Bank> getAllPerson();
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.SpringAndMyBatis.dao.IBankDao">
<!-- 目的:为dao接口方法提供sql语句配置 -->
<select id="getAllPerson" resultType="Bank" >
<!-- 具体的sql -->
select * from `bank`
</select>
</mapper>
3.搭建Service层
public interface IBankService {
//查询
List<Bank> getAllPerson();
}
public class IBankServiceImpl implements IBankService {
private IBankDao iBankDao;
@Override
public List<Bank> getAllPerson() {
return iBankDao.getAllPerson();
}
public IBankDao getiBankDao() {
return iBankDao;
}
public void setiBankDao(IBankDao iBankDao) {
this.iBankDao = iBankDao;
}
}
4.创建jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:///bank
jdbc.username=root
jdbc.password=123
5.创建applicationContext.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:aop="http://www.springframework.org/schema/aop"
xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--加载配置文件-->
<context:property-placeholder location="jdbc.properties"/>
<!--配置数据源 阿里-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!--配置SqlSessionFactoryBean-->
<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--加载Mybatis配置文件-->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!--扫描Dao层,省略代码-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.SpringAndMyBatis.dao"/>
</bean>
<!-- 注入Dao层-->
<bean id="iBankDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="cn.SpringAndMyBatis.dao.IBankDao"/>
<property name="sqlSessionFactory" ref="sqlSessionFactoryBean"/>
</bean>
<!--Service层-->
<bean id="iBankService"class="cn.SpringAndMyBatis.service.impl.IBankServiceImpl">
<property name="iBankDao" ref="IBankDao"/>
</bean>
</beans>
6.创建测试类
public static void main(String[] args) {
/*ApplicationContext*/
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
IBankService iBankService = (IBankService)ctx.getBean("iBankService");
List<Bank> list = iBankService.getAllPerson();
for (Bank bank:list){
System.out.println(bank.getCode_name());
}
}
注解版
1.修改applicationContext.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"
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--加载配置文件-->
<context:property-placeholder location="jdbc.properties"/>
<!--配置数据源 阿里-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!--配置SqlSessionFactoryBean-->
<beanid="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--加载Mybatis配置文件-->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!--扫描Dao层,省略代码-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.SpringAndMyBatis.dao"/>
</bean>
</beans>
2.给Dao层添加注解
@Repository
public interface IBankDao {
//查询
List<Bank> getAllPerson();
}
3.给Service添加注解
@Service("iBankService")
public class IBankServiceImpl implements IBankService {
@Resource
private IBankDao iBankDao;
@Override
public List<Bank> getAllPerson() {
return iBankDao.getAllPerson();
}
public IBankDao getiBankDao() {
return iBankDao;
}
public void setiBankDao(IBankDao iBankDao) {
this.iBankDao = iBankDao;
}
}
4.编写测试类
public static void main(String[] args) {
/*ApplicationContext*/
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
IBankService iBankService = (IBankService)ctx.getBean("iBankService");
List<Bank> list = iBankService.getAllPerson();
for (Bank bank:list){
System.out.println(bank.getCode_name());
}
}