Spring整合MyBatis

率先下载jar包  mybatis-spring.jar  

由来spring3.0出来的早,MyBatis3.0晚,意味着Spring不情愿去当一个没有做出发布版的MyBatis上举行了多之设置。所以,最终jar包提供者第三在。

 <!–Mybatis+Spring整合–>

    <dependency>

      <groupId>org.mybatis</groupId>

      <artifactId>mybatis-spring</artifactId>

      <version>1.2.0</version>

    </dependency>0.jar包  mybatis-spring.jar  

事先建一个SpringSSM文件,在该文件中创造实体类entity层,并当该层中形容及跟数据库相应的属性值,并将其开展get,set封装

补充加图书分层:

 

public class Book {
    private Integer bookId;
    private String bookName;
    private int bookPrice;

创建dao层,在该层中创建BookDao接口,并写上实现方法

public interface BookDao {

      //添加
    public  int  add(Book book);
}

写完接口之后,接着在该层中写上一个小配置BookDao.xml,需要注意的是该小配置的名要和接口一致,以免出现不必要的错误,在该配置中需要写上SQL语句

<?xml version="1.0" encoding="UTF-8" ?>
<!--头文件-->
<!DOCTYPEmapperPUBLIC"-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.happy.SpringSSM.dao.BookDao">
    <insert id="add">
        insert into book(bookname,bookprice) values(#{bookName},#{bookPrice})
    </insert>
</mapper>

接下来就是Service层了,同样在该层中创建一个BookService接口,并写上一个实现方法,和dao层中的方法一样

public interface BookService {
    public  int add(Book book);
}

当然也要在该层中创建一个BookServiceImpl类,用它来实现接口中的方法,并且将dao层中的接口名称植入到该类中  

public class BookServiceImpl implements BookService {

 

 

      BookDao dao;

    public BookDao getDao() {
        return dao;
    }

    public void setDao(BookDao dao) {
        this.dao = dao;
    }

    public int add(Book book) {
        return dao.add(book);
    }

}

接下来最重要的就是resources中配置了

 

首先创建一个jdbc.properties,在这写上连接数据库的用户名,密码,数据库名等等

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:///bookstok
jdbc.user=sha
jdbc.password=sha

还有一个MyBatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPEconfigurationPUBLIC"-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <!--类型别名-->
<typeAliases>
        <package name="cn.happy.SpringSSM.entity"></package>
    </typeAliases>

</configuration>

之后就是大配置了

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
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
        http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
      http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
     ">
    <!-- 1.识别jdbc。properties-->

<context:property-placeholder location="jdbc.properties"></context:property-placeholder>

 <!--2.dbcp数据源--> <!-- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"></property> <property name="url" value="jdbc:mysql:///bookstok"></property> <property name="username" value="sha"></property> <property name="password" value="sha"></property> </bean>--> <!--2.创建数据源 Spring--><context:property-placeholder location="jdbc.properties"></context:property-placeholder> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" > <property name="driverClassName" value="${jdbc.driverClassName}"></property> <property name="url" value="${jdbc.url}"></property> <property name="username" value="${jdbc.user}" ></property> <property name="password" value="${jdbc.password}" ></property> </bean> <!--3.配置SqlSessionFactoryBean 工厂配置--><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--引用数据源组件--><property name="dataSource" ref="dataSource"></property> <!--引用mybatis配置文件中的配置--><property name="configLocation" value="classpath:MyBatis-config.xml"></property> </bean><!--4.dao 实现类,映射文件的扫描可以动态的在内存中构建接口的实现类,代理对象--><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cn.happy.SpringSSM.dao"></property> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property></bean> <!--5.service--><bean id="bookservice" class="cn.happy.SpringSSM.service.BookServiceImpl"> <property name="dao" ref="bookDao"></property> </bean>

<!--6.事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"></property>
</bean>

<!-- 7.AspectJ AOP 配置事务 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
        <tx:method name="buy*" isolation="DEFAULT" propagation="REQUIRED" rollback-for="StockException"/>
    </tx:attributes>
</tx:advice>

<aop:config>
    <!--配置了切点Pointcut-->
<aop:pointcut id="mypoint" expression="execution(* *..service.*.*(..))"/>
    <!--顾问-->
<aop:advisor advice-ref="txAdvice" pointcut-ref="mypoint"></aop:advisor>
</aop:config>

</beans>

接下来就到测试类了

public class SpringSSMText {
    @Test
    public  void  ssmtest(){
        ApplicationContext appl=new ClassPathXmlApplicationContext("applicationContextSpringSSM.xml");
        BookService  bb= (BookService) appl.getBean("bookservice");
        Book  bk=new Book();
        bk.setBookName("12");
        bk.setBookPrice(23);
        bb.add(bk);

    }
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