文章目录
pom.xml
xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.aistart</groupId>
<artifactId>spring_mybatis</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<!--mybatis的环境-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.30</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.15</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
<!--spring的环境-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.30</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.30</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.6</version>
</dependency>
<!--测试环境-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.2</version>
<scope>test</scope>
</dependency>
<!--整合环境-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.6</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
</build>
</project>
ProductsMapper.java
java
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package com.aistart.mapper;
import org.springframework.stereotype.Repository;
public interface ProductsMapper {
public int insertOne(String name);
public int deleteOne(String name);
}
ProductsServiceImpl.java
java
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package com.aistart.service.impl;
import com.aistart.mapper.ProductsMapper;
import com.aistart.service.ProductsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class ProductsServiceImpl implements ProductsService {
@Autowired
private ProductsMapper productsMapper;
public void setProductsMapper(ProductsMapper productsMapper) {
this.productsMapper = productsMapper;
}
@Override
public int insertOne(String name) {
int rows = productsMapper.insertOne(name);
return rows;
}
@Override
public int deleteOne(String name) {
int rows = productsMapper.deleteOne(name);
return rows;
}
@Override
public void consume() {
/*事务开启*/
productsMapper.insertOne("中米手机");
// System.out.println(1/0);
/*事务中,如果发生异常,回滚*/
productsMapper.deleteOne("中米手机");
/*事务关闭*/
}
@Override
public void print(String msg) {
System.out.println(msg);
}
}
ProductsService.java
java
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package com.aistart.service;
public interface ProductsService {
public int insertOne(String name);
public int deleteOne(String name);
public void consume();
public void print(String msg);
}
ProductsMapper.xml
xml
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<?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="com.aistart.mapper.ProductsMapper">
<insert id="insertOne">
insert into products set product_name = #{name}
</insert>
<delete id="deleteOne">
delete
from products
where product_name = #{name};
</delete>
</mapper>
ApplicationContext.xml
xml
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<?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"
xmlns:aop="http://www.springframework.org/schema/aop" 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/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--context注解-->
<context:component-scan base-package="com.aistart"/>
<context:annotation-config/>
<!--将mapper代理对象托管到Bean容器中-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.aistart.mapper"/>
</bean>
<!--推荐,从外部获取其中的细节配置-->
<context:property-placeholder location="classpath:db.properties"/>
<!--设置数据源-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<!--四大件 获取方式
1.手动写
2.通过配置文件设置,上面这个
<context:property-placeholder location="classpath:db.properties"/>
-->
<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>
<!--整合,将factory交管给spring-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--数据源的获取-->
<property name="dataSource" ref="dataSource"></property>
<!--mapper的定位,注意格式-->
<property name="mapperLocations" value="classpath*:com/aistart/mapper/*Mapper.xml"></property>
<!--mapper文件定位-->
<property name="configLocation" value="mybatis-config.xml"></property>
</bean>
<!--搞事务了-->
<!--增强-->
<bean id="manager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" >
<property name="dataSource" ref="dataSource"/>
</bean>
<!--通知-->
<!--id时通知命名,transaction-manager管理的引入-->
<tx:advice id="txAdvice" transaction-manager="manager">
<!--对应一个函数业务一个-->
<tx:attributes>
<tx:method name="consume"/>
</tx:attributes>
</tx:advice>
<!--本质要进行织入-->
<aop:config>
<!--一种规则-->
<aop:pointcut id="tx" expression="execution(* com.aistart.service.impl.ProductsServiceImpl.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="tx" />
</aop:config>
</beans>
db.properties
properties
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jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatisdb?serverTimezone=Asia/Shanghai&usessl=false
jdbc.username=root
jdbc.password=root
mybatis-config.xml
xml
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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
</settings>
</configuration>
ProductsServiceImplTest.java
java
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package com.aistart.service.impl;
import com.aistart.config.SpringConfig;
import com.aistart.service.ProductsService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import static org.junit.Assert.*;
public class ProductsServiceImplTest {
@Test
public void insertOne() {
ApplicationContext context;
// context = new AnnotationConfigApplicationContext(SpringConfig.class);
context = new ClassPathXmlApplicationContext("ApplicationContext.xml");
ProductsService productsService = context.getBean( ProductsService.class);
productsService.insertOne("大米");
}
@Test
public void consume() {
ApplicationContext context;
context = new ClassPathXmlApplicationContext("ApplicationContext.xml");
ProductsService productsService = context.getBean( ProductsService.class);
productsService.consume();
}
}