2、採用接口org.apache.ibatis.session.SqlSession的實現類org.mybatis.spring.SqlSessionTemplate。
mybatis中, sessionFactory可由SqlSessionFactoryBuilder.來創建。MyBatis-Spring 中,使用了SqlSessionFactoryBean來替代。SqlSessionFactoryBean有一個必須屬性dataSource,另外其還有一個通用屬性configLocation(用來指定mybatis的xml配置文件路徑)。
spring-mybatis.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!-- 自動掃描 -->
<context:component-scan base-package="com.hua.saf" />
<!-- 引入配置文件 -->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<!-- 初始化連接大小 -->
<property name="initialSize" value="${initialSize}" />
<!-- 連接池最大數量 -->
<property name="maxActive" value="${maxActive}" />
<!-- 連接池最大空閒 -->
<property name="maxIdle" value="${maxIdle}" />
<!-- 連接池最小空閒 -->
<property name="minIdle" value="${minIdle}" />
<!-- 獲取連接最大等待時間 -->
<property name="maxWait" value="${maxWait}" />
</bean>
<!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:sqlMapConfig.xml"/>
<!-- 自動掃描mapping.xml文件,**表示迭代查找,也可在sqlMapConfig.xml中單獨指定xml文件-->
<property name="mapperLocations" value="classpath:com/hua/saf/**/*.xml" />
</bean>
<!-- mybatis spring sqlSessionTemplate,使用時直接讓spring注入即可 -->
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
</bean>
<!-- (事務管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
sqlMapConfig.xml
<?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>
<typeAliases>
<typeAlias type="com.hua.saf.pojo.User" alias="User" />
</typeAliases>
</configuration>
user.java
public class User {
private int id;
private String username;
private String password;
private int age;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
userDao.java
@Repository
public class UserDao{
@Resource
private SqlSessionTemplate sqlSessionTemplate;
public User getUser(int id) {
return sqlSessionTemplate.selectOne(this.getClass().getName() + ".getUser", 1);
}
}
userService.java
@Service
public class UserService{
@Resource
private UserDao userDao;
public User getUser(int id) {
return userDao.getUser(id);
}
}