myBatis系列之二:以接口方式交互数据
myBatis系列之三:增删改查
myBatis系列之四:关联数据的查询
myBatis系列之六:与SpringMVC集成
myBatis系列之七:事务管理
Spring作为基础框架,可以集成后端框架,如Hibernate,MyBatis等。
前面是介绍单独使用MyBatis的,大致逻辑是:
sqlSessionFactory <- configuration file (包括数据库连接配置)
IXxxMapper <- sqlSession <- sqlSessionFactory
<- mapper interface <- mapper xml
得到IxxMapper后,就可以调用其方法进行数据交互了。
和Spring集成时,上面的这些对象需要作为bean来管理:
dataSource bean <- 数据库连接配置
sqlSessionFactory bean <- dataSource
<- configuration file
userMapper bean <- sqlSessionFactory
<- mapper interface
1. 在pom.xml中加入依赖:
<properties> <mybatis.spring.version>1.2.1</mybatis.spring.version> <dbcp.version>1.4</dbcp.version> <spring.version>3.1.2.RELEASE</spring.version> </properties> <dependencies> <dependency><!-- mybatis的几个对象包装成spring的bean --> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>${mybatis.spring.version}</version> </dependency> <dependency><!-- spring上下文用spring-jdbc连接数据库 --> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency><!-- dataSource是BasicDataSource的实例 --> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>${dbcp.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> </dependencies>
2. 在类路径下创建beans-da.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"><!-- 数据库连接bean --> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/hbatis?characterEncoding=utf8" /> <property name="username" value="root" /> <property name="password" value="123456" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><!-- sqlSessionFactory bean --> <property name="dataSource" ref="dataSource" /><!-- 数据源 --> <property name="configLocation" value="classpath:Configuration.xml" /><!-- 配置文件 --> </bean> <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"><!-- user映射bean--> <property name="sqlSessionFactory" ref="sqlSessionFactory" /> <property name="mapperInterface" value="com.john.hbatis.mapper.IUserMapper" /><!-- 映射接口 --> </bean> </beans>
3. 测试类:
@ContextConfiguration(locations = { "classpath:beans-da.xml" }) public class SpringIntegrationTest extends AbstractTestNGSpringContextTests { private static final Logger log = LoggerFactory.getLogger(SpringIntegrationTest.class); @Resource IUserMapper mapper; @Test public void queryTest() { User user = mapper.getUserById(1); log.info("Name: {}, address: {}", user.getName(), user.getAddress()); } }
参考:
http://www.yihaomen.com/article/java/309.htm