springMybatis整合

整合Mybatis

步骤

导入相关jar包

junit
mybatis
mysql数据库
spring相关
aop织入
mybatis-spring

编写文件

第一种方式

spring配置文件

<?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"xsi:schemaLocation="http://www.springframework.org/schema/beanshttps://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aophttps://www.springframework.org/schema/aop/spring-aop.xsd"><bean class="org.springframework.jdbc.datasource.DriverManagerDataSource" name="dataSource"><property name="driverClassName" value="com.mysql.jdbc.Driver"/><property name="url" value="jdbc:mysql://192.168.137.151:8066/TESTDB?useUnicode=true&amp;characterEncoding=utf8&amp;rewriteBatchedStatements=true"/><property name="username" value="root"/><property name="password" value="123456"/></bean><bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactory"><property name="dataSource" ref="dataSource"/><property name="configLocation" value="classpath:mybatisConfig.xml"/><property name="mapperLocations" value="classpath:com/qiyu/mapper/*.xml"/></bean><bean class="org.mybatis.spring.SqlSessionTemplate" id="sessionTemplate"><constructor-arg index="0" ref="sqlSessionFactory"/></bean><bean class="com.qiyu.mapper.StudentMapperImpl" id="studentMapper"><property name="sqlSessionTemplate" ref="sessionTemplate"/></bean>
</beans>

mybatis 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration><properties resource="database.properties"/><typeAliases><package name="com.qiyu.pojo"/></typeAliases></configuration>

package com.qiyu.mapper;import com.qiyu.pojo.Student;/*** @program: Spring-study* @description:* @author: cxy* @create: 2021-06-03 14:40**/
public interface StudentMapper
{public Student getStudnetById(int  id);
}

接口类

package com.qiyu.mapper;import com.qiyu.pojo.Student;/*** @program: Spring-study* @description:* @author: cxy* @create: 2021-06-03 14:40**/
public interface StudentMapper
{public Student getStudnetById(int  id);
}

实现类

package com.qiyu.mapper;import com.qiyu.pojo.Student;
import org.mybatis.spring.SqlSessionTemplate;/*** @program: Spring-study* @description:* @author: cxy* @create: 2021-06-03 20:36**/
public class StudentMapperImpl implements StudentMapper
{private SqlSessionTemplate sqlSessionTemplate;public  void  setSqlSessionTemplate(SqlSessionTemplate sqlSessionTemplate){this.sqlSessionTemplate = sqlSessionTemplate;}@Overridepublic Student getStudnetById(int id) {StudentMapper studentMapper = sqlSessionTemplate.getMapper(StudentMapper.class);return  studentMapper.getStudnetById(id);}
}

mpper xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.qiyu.mapper.StudentMapper"><select id="getStudnetById" resultType="com.qiyu.pojo.Student">SELECT * FROM  mybatis_student WHERE id=#{id}</select>
</mapper>

测试

public class Test
{@org.junit.Testpublic  void test() throws IOException {String  resource = "mybatisConfig.xml";InputStream inputStream = Resources.getResourceAsStream(resource);SqlSessionFactory sqlSessionFactory =  new SqlSessionFactoryBuilder().build(inputStream);SqlSession session = sqlSessionFactory.openSession();StudentMapper student = session.getMapper(StudentMapper.class);Student student1 = student.getStudnetById(2);System.out.println(student1);session.close();}@org.junit.Testpublic void test1(){ApplicationContext context = new ClassPathXmlApplicationContext("spring-config.xml");StudentMapper studentMapper = context.getBean("studentMapper",StudentMapper.class);Student strudnet = studentMapper.getStudnetById(1);System.out.println(strudnet);}
}

第二种方式

SqlSessionDaoSuppor

事务

CADI原则

原子性

唯一性

隔离性

持久性

<!--声明事务-->
<bean  id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><constructor-arg ref="dataSource"/>
</bean>
<!--结合AOP实现事务的织入配置事务通知
-->
<tx:advice id="transactionInterceptor" transaction-manager="transactionManager"><tx:attributes><!--给方法配置事务--><!---配置事务的传播特性 new propagation  默认是 propagation="REQUIRED" --><tx:method name="add" propagation="REQUIRED"/><tx:method name="*" propagation="REQUIRED"/></tx:attributes>
</tx:advice><!--切入事务-->
<aop:config><aop:pointcut id="transactionCut" expression="execution(* com.qiyu.mapper.*.*(..))"/><aop:advisor advice-ref="transactionInterceptor" pointcut-ref="transactionCut"/>
</aop:config>

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springMybatis整合

整合Mybatis

步骤

导入相关jar包

编写文件

第一种方式

第二种方式

事务

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