整合Mybatis方式一

1. 在mybatis-config.xml文件留别名

<?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>
<!--别名-->
    <typeAliases>
        <package name="com.aptech.pojo"/>
    </typeAliases>
</configuration>

 2. 创建branchesMapperImpl类

实现branchesMapper接口 

public class branchesMapperImpl implements branchesMapper {
    private SqlSessionTemplate sessionTemplate;

    public void setSessionTemplate(SqlSessionTemplate sessionTemplate) {
        this.sessionTemplate = sessionTemplate;
    }

    public List<Branches> selectBranches() {
        branchesMapper mapper = sessionTemplate.getMapper(branchesMapper.class);
        return mapper.selectBranches();
    }
}

 3.maven配置

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>sad</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.32</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.0.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.0.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.13</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.1</version>
        </dependency>
    </dependencies>

    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

 

4. 新建sping-dao.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">
    <!-- 通过bean元素声明需要Spring创建的实例。该实例的类型通过class属性指定，并通过id属性为该实例指定一个名称，以便在程序中使用 -->
    <bean id="datasource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/branchesmar?useUnicode=true"/>
        <property name="username" value="root"/>
        <property name="password" value="123"/>
    </bean>

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="datasource"></property>
        <!--绑定mybatis配置文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml" />
        <property name="mapperLocations" value="classpath:com/aptech/mapper/*.xml"/>
    </bean>
    <!--SqlSessionTemplate就是我们使用的sqlsession-->
    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
        <!--只能使用构造器注入sqlSessionFactory，因为它没有set方法-->
        <constructor-arg index="0" ref="sqlSessionFactory"/>
    </bean>
    <bean id="branchesMapper" class="com.aptech.mapper.branchesMapperImpl">
        <property name="sessionTemplate" ref="sqlSession"/>
    </bean>
</beans>

5. 测试Test

public void tt(){
        ApplicationContext context = new ClassPathXmlApplicationContext("sping-dao.xml");
        branchesMapper branchesMapper = context.getBean("branchesMapper", branchesMapper.class);
        for (Branches branch : branchesMapper.selectBranches()) {
            System.out.println(branch);
        }
    }