spring和mybatis整合初體驗

1. 用maven引入spring和mybatis必要的依賴包。 這裏就不加說明了，具體的jar包本身看下就明白了。

2. spring-mybatis的xml配置文件.

<?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: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">  

    <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="${driverClassName}" />  
        <property name="url" value="${url}" />  
        <property name="username" value="${username}" />  
        <property name="password" value="${password}" />  
    </bean>  

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="dataSource" ref="dataSource" />  
        <!-- 自動掃描mapping.xml文件 -->  
        <property name="mapperLocations" value="classpath:mybatis/mapping/*.xml"></property>  
    </bean>  
  
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
        <property name="basePackage" value="com.yuorfei.dao" />  
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
    </bean>  
  
    <!-- 事務管理 -->  
    <bean id="transactionManager"  
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
        <property name="dataSource" ref="dataSource" />  
    </bean>  
</beans>

3. spring的配置文件中引入mybatis的配置便可。

4. 映射文件，按照mybatis的規則寫好和數據庫表相對應的映射文件，寫好dao層的接口。

<?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"   "http://mybatis.org/dtd/mybatis-3-mapper.dtd">  
<mapper namespace="com.springMyBatis.system.dao.UserDao">  
<insert id="addUser" parameterType="com.yuorfei.bean.User" flushCache="true">  
  INSERT INTO user (id,username,password) VALUES (#{id},#{username},#{password})  
 </insert>   
</mapper>

public interface UserDao {     
    public void addUser(User user); 
}

5. 這樣就能夠直接進行操做了，代碼以下：

UserDao userDao=(UserDao) ctx.getBean("userDao");      
User user=new User();
user.setId(1);
user.setUsername("yuorfei");
 user.setPassword("123456");
userDao.addUser(user);
System.out.println("添加成功");

###總結 ####mybatis的使用很是簡單，相對來講比較輕，並且很是靈活。容易上手，sql都寫在xml裏，能夠實現統一管理。