添加依赖:
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.37</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/springframework/spring-orm -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<dependency>
<groupId>org.apache.taglibs</groupId>
<artifactId>taglibs-standard-spec</artifactId>
<version>1.2.5</version>
</dependency>
<dependency>
<groupId>org.apache.taglibs</groupId>
<artifactId>taglibs-standard-impl</artifactId>
<version>1.2.5</version>
</dependency>
所有的jar:
applicationContext.xml文件:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<context:component-scan base-package="com.ssm">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<context:property-placeholder location="classpath*:db.properties" />
<!-- 数据源配置 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${dev_driver}"></property>
<property name="jdbcUrl" value="${dev_url}"></property>
<property name="user" value="${dev_username}"></property>
<property name="password" value="${dev_password}"></property>
</bean>
<!-- 整合mybatis -->
<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!-- 使用Mybatis配置文件,简化这里面的配置,比如settings配置可以放在Mybatis配置文件里 -->
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
<!-- 配置映射文件的位置 -->
<property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property>
<!-- 指定包内的实体类引用可以使用别名,可配合@Alias注解使用 -->
<property name="typeAliasesPackage" value="com.ssm.domain"></property>
</bean>
<!-- 配置扫描mapper接口文件,自动为其注册bean -->
<!-- #方式一 -->
<mybatis-spring:scan base-package="com.ssm.mapper"/>
<!-- #方式二 -->
<!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ssm.mapper"></property>
</bean> -->
<!-- 事务管理 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 开启注解事务管理 -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
整合思路:
将数据源配置交给spring容器管理
将Mapper代理对象的生成交给spring容器管理
将事务控制交给容器管理
Mapper 接口文件:
public interface EmployeeMapper {
public List<Employee> getEmps ();
}
Mapper XML文件:
<mapper namespace="com.ssm.mapper.EmployeeMapper">
<!-- <cache type="org.mybatis.caches.ehcache.EhcacheCache"></cache> -->
<select id="getEmps" resultType="com.ssm.domain.Employee">
select * from tbl_employee
</select>
</mapper>
spring容器会根据Mapper XML文件创建代理类,并将之注册到容器内。
测试:
@Test
public void testssm(){
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
EmployeeMapper mapper = ac.getBean(EmployeeMapper.class);
List<Employee> emps = mapper.getEmps();
for (Employee emp : emps) {
System.out.println(emp);
}
}