使用spring如何实现整合mybatis

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<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">
 <!-- 自动扫描 -->
 <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}" />
 <!-- 初始化连接大小 -->
 <property name="initialSize" value="${initialSize}" />
 <!-- 连接池最大数量 -->
 <property name="maxActive" value="${maxActive}" />
 <!-- 连接池最大空闲 -->
 <property name="maxIdle" value="${maxIdle}" />
 <!-- 连接池最小空闲 -->
 <property name="minIdle" value="${minIdle}" />
 <!-- 获取连接最大等待时间 -->
 <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" />
 <!-- 自动扫描mapping.xml文件，**表示迭代查找 -->
 <property name="mapperLocations" value="classpath:com/hua/saf/**/*.xml" />
 </bean>
 <!-- DAO接口所在包名，Spring会自动查找其下的类 ,包下的类需要使用@MapperScan注解,否则容器注入会失败 -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
 <property name="basePackage" value="com.hua.saf.*" />
 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
 </bean>
 <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 <property name="dataSource" ref="dataSource" />
 </bean> 
</beans>

<&#63;xml version="1.0" encoding="UTF-8" &#63;>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 为这个mapper指定一个唯一的namespace，namespace的值习惯上设置成包名+sql映射文件名，这样就能够保证namespace的值是唯一的
例如namespace="me.gacl.mapping.userMapper"就是me.gacl.mapping(包名)+userMapper(userMapper.xml文件去除后缀)
-->
<mapper namespace="com.hua.saf.dao.UserDao">
　　<!-- 
　　在select标签中编写查询的SQL语句， 设置select标签的id属性为getUser，id属性值必须是唯一的，不能够重复,
　　使用parameterType属性指明查询时使用的参数类型，resultType属性指明查询返回的结果集类型
　　resultType="com.hua.saf.User"就表示将查询结果封装成一个User类的对象返回,User类就是t_user表所对应的实体类
　　-->
　　<!-- 根据id查询得到一个user对象-->
　　<select id="getUser" parameterType="int" resultType="com.hua.saf.pojo.User">
　　　　select * from t_user where id=#{id}
　　</select>
</mapper>

/** 
* 这里的@MapperScan就是上面所讲的Mapper扫描器中所需要的配置，会自动生成代理对象。 
* 注意，接口中的方法名称要和对应的MyBatis映射文件中的语句的id值一样，因为生成的 
* 动态代理，会根据这个匹配相应的Sql语句执行。另外就是方法的参数和返回值也需要注 
* 意。接口中的方法如何定义，对应的MyBatis映射文件就应该进行相应的定义。 
* 最后，标注中的userDao是用来作为Spring的Bean的id(或name)进行使用的，方便我 
* 们在Service层进行注入使用。 
*/ 
@MapperScan
public interface UserDao {
　　//此处的方法名必须和mapper中的映射文件中的id同名
　　//回去映射文件中通过com.hua.saf.dao.UserDao.getUser,即this.getClass().getName()+".getUser"
　　public User getUser(int id);
}

@Service("userService")
public class UserServiceImpl implements IUserService {
@Resource
private UserDao userDao;
　　public User getUser(int id) {
　　　　return userDao.getUser(id);
　　}
}

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<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">
 <!-- 自动扫描 -->
 <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}" />
 <!-- 初始化连接大小 -->
 <property name="initialSize" value="${initialSize}" />
 <!-- 连接池最大数量 -->
 <property name="maxActive" value="${maxActive}" />
 <!-- 连接池最大空闲 -->
 <property name="maxIdle" value="${maxIdle}" />
 <!-- 连接池最小空闲 -->
 <property name="minIdle" value="${minIdle}" />
 <!-- 获取连接最大等待时间 -->
 <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"/>
 <!-- 自动扫描mapping.xml文件，**表示迭代查找,也可在sqlMapConfig.xml中单独指定xml文件-->
 <property name="mapperLocations" value="classpath:com/hua/saf/**/*.xml" />
 </bean>
 <!-- mybatis spring sqlSessionTemplate,使用时直接让spring注入即可 -->
 <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
 <constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
 </bean>
 <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 <property name="dataSource" ref="dataSource" />
 </bean>
</beans>

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<!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>

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;
 }
}

@Repository
public class UserDao{
 @Resource
 private SqlSessionTemplate sqlSessionTemplate;
 public User getUser(int id) {
 return sqlSessionTemplate.selectOne(this.getClass().getName() + ".getUser", 1);
 } 
}

@Service
public class UserService{
 @Resource
 private UserDao userDao;
 public User getUser(int id) {
 return userDao.getUser(id);
 }
}

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<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">
 <!-- 自动扫描 -->
 <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}" />
 <!-- 初始化连接大小 -->
 <property name="initialSize" value="${initialSize}" />
 <!-- 连接池最大数量 -->
 <property name="maxActive" value="${maxActive}" />
 <!-- 连接池最大空闲 -->
 <property name="maxIdle" value="${maxIdle}" />
 <!-- 连接池最小空闲 -->
 <property name="minIdle" value="${minIdle}" />
 <!-- 获取连接最大等待时间 -->
 <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"/>
 <!-- 自动扫描mapping.xml文件，**表示迭代查找,也可在sqlMapConfig.xml中单独指定xml文件-->
 <property name="mapperLocations" value="classpath:com/hua/saf/**/*.xml" />
 </bean>
 <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 <property name="dataSource" ref="dataSource" />
 </bean>
</beans>

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<!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>

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;
 }
}

@Repository
public class UserDao extends SqlSessionDaoSupport{
 public User getUser(int id) {
 return this.getSqlSession().selectOne(this.getClass().getName() + ".getUser", 1);
 }
　　//使用SqlSessionDaoSupport必须注意，此处源码1.1.1中有自动注入，1.2中取消了自动注入，需要手工注入，侵入性强
　　//也可在spring-mybatis.xml中如下配置，但是这种有多少个dao就要配置到少个，多个dao就很麻烦。
　　//<bean id="userDao" class="com.hua.saf.dao.UserDao">
　　// <property name="sqlSessionFactory" ref="sqlSessionFactory"/>
　　//</bean>
 @Resource
 public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
 // TODO Auto-generated method stub
 super.setSqlSessionFactory(sqlSessionFactory);
 }
}

@Service
public class UserService{
 @Resource
 private UserDao userDao;
 public User getUserss(int id) {
 return userDao.getUser(1);
 }
}

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