MyBatis整合Spring

添加相关依赖

xml 复制代码

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.4</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>5.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.1.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.4-snapshot</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.11</version>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.12</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.javassist</groupId>
      <artifactId>javassist</artifactId>
      <version>3.27.0-GA</version>
      <scope>compile</scope>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>ognl</groupId>
      <artifactId>ognl</artifactId>
      <version>3.2.15</version>
      <scope>compile</scope>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.14</version>
    </dependency>

MyBatis配置文件

mybatis-config-spring.xml

xml 复制代码

<?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>
    <settings>
        <!-- 打印查询语句 -->
        <setting name="logImpl" value="STDOUT_LOGGING" />
    </settings>

</configuration>

Spring配置文件

applicationContext.xml

xml 复制代码

<?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:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">
    <!-- 关联数据属性文件 -->
    <context:property-placeholder location="classpath:db.properties"/>

    <!-- 开启扫描 -->
    <context:component-scan base-package="com.wxw.study" />

    <!-- 配置数据源 -->
    <bean class="com.alibaba.druid.pool.DruidDataSource" id="dataSource">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>

    <!-- 整合MyBatis -->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactoryBean">
        <!-- 关联数据源 -->
        <property name="dataSource" ref="dataSource" />
        <!-- 关联MyBatis的配置文件 -->
        <property name="configLocation" value="classpath:mybatis-config-spring.xml" />
        <!-- 指定映射文件的位置 -->
        <property name="mapperLocations" value="classpath:mapper/*.xml" />
        <!-- 指定别名 -->
        <property name="typeAliasesPackage" value="com.wxw.study.domain" />
    </bean>

    <!-- mapper接口的路径 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.wxw.study.mapper" />
    </bean>

</beans>

测试

java 复制代码

@ContextConfiguration(locations = {"classpath:applicationContext.xml"})
@RunWith(value = SpringJUnit4ClassRunner.class)
public class Test06Spring {

    @Autowired
    private EmployeeMapper employeeMapper;

    @Test
    public void test01(){
        List<Employee> list = employeeMapper.selectEmployeeList();
        for (Employee employee : list) {
            System.out.println(employee);
        }
    }
}