pom.xml依赖
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.4</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.5</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.5</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>3.3.0</version>
</dependency>
</dependencies>
解决资源配置问题
<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>
实体类
private Integer id;
private String name;
private String pswd;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPswd() {
return pswd;
}
public void setPswd(String pswd) {
this.pswd = pswd;
}
@Override
public String toString() {
return "user{" +
"id=" + id +
", name='" + name + '\'' +
", pswd='" + pswd + '\'' +
'}';
}
}
dao持久层
public interface UserDao {
List<User> getUsers();
void saveUser(User user);
void deleteUser(int id);
void updateUser(User user);
}
持久层mapper
<?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.lin.dao.UserDao">
<select id="getUsers" resultType="com.lin.pojo.User">
select * from user
</select>
<insert id="saveUser" parameterType="user">
insert into user (id,name,pswd)values (#{id},#{name},#{pswd})
</insert>
<delete id="deleteUser" parameterType="int">
delete from user where id=#{id}
</delete>
<update id="updateUser" parameterType="user">
update user set name=#{name},pswd=#{pswd} where id=#{id}
</update>
</mapper>
mybatis核心配置文件
<?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="logImpl" value="STDOUT_LOGGING"/>
</settings>
<typeAliases>
<typeAlias type="com.lin.pojo.User"></typeAlias>
</typeAliases>
<!--这里配置了对应的映射文件，在<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dateSource"/>
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>中，不能在配置了，不然出错-->
<mappers>
<package name="com.lin.dao"/>
</mappers>
</configuration>
业务层实现类
package com.lin.service.impl;
import com.lin.dao.UserDao;
import com.lin.pojo.User;
import com.lin.service.userService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
@Service("userService")
public class userServiceImpl implements userService {
@Autowired
private UserDao userDao;
// @Autowired
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}
@Override
public List<User> getUsers() {
return userDao.getUsers();
}
@Override
public void saveUser(User user) {
userDao.saveUser(user);
}
@Override
public void deleteUser(int id) {
// User user = new User();
// user.setId(11);
// user.setName("to");
// user.setPswd("bwdts");
// userDao.saveUser(user);
// int i=1/0;
userDao.deleteUser(id);
}
@Override
public void updateUser(User user) {
userDao.updateUser(user);
}
@Override
public void poi(int id){
User user = new User();
user.setId(9);
user.setName("to");
user.setPswd("bwdts");
userDao.saveUser(user);
int i=1/0;
userDao.deleteUser(id);
//这里设置一个异常，来验证事务是否配置成功
}
}
业务层接口
package com.lin.service;
import com.lin.pojo.User;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
public interface userService {
List<User> getUsers();
void saveUser(User user);
void deleteUser(int id);
void updateUser(User user);
void poi(int id);
}
spring-dao.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"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.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-4.3.xsd">
<!--导入资源配置文件-->
<context:property-placeholder location="classpath:db.properties"></context:property-placeholder>
<!--c3p0数据源-->
<bean id="dateSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${driver}"/>
<property name="jdbcUrl" value="${url}"/>
<property name="user" value="${name}"/>
<property name="password" value="${psw}"/>
<property name="autoCommitOnClose" value="false"/>
</bean>
<!--获取sqlSessionFactory，注入容器中-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dateSource"/>
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.lin.dao"/>
</bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dateSource"/>
</bean>
<!--配置事务通知-->
<tx:advice id="interceptor" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
<!--配置Aop-->
<aop:config >
<!--配置通用切入点表达式-->
<aop:pointcut id="pt" expression="execution(* com.lin.service.*.*(..))"/>
<aop:advisor advice-ref="interceptor" pointcut-ref="pt"/>
</aop:config>
</beans>
db.properties
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/mybatis?useSSL=true&useUnicode=true&characterEncoding=UTF-8
name=root
psw=123456
测试类
@Test
public void test6() {
ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-dao.xml");
userService userService = applicationContext.getBean("userService", userService.class);
userService.poi(8);
}
