Data Access 之 MyBatis（六）- Spring、Spring MVC、MyBatis整合（下）

jdbc_driver=com.mysql.cj.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&autoReconnect=true&useSSL=false&serverTimezone=Asia/Shanghai
jdbc_username=root
jdbc_password=root
jdbc_initialSize=10
jdbc_maxActive=20
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<?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>
        <!--开启驼峰命名-->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        <!--开启懒加载-->
        <setting name="lazyLoadingEnabled" value="true"/>
        <setting name="aggressiveLazyLoading" value="false"/>
        <!--开启二级缓存-->
        <setting name="cacheEnabled" value="true"/>
    </settings>
</configuration>
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<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>2.0.7</version>
</dependency>
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<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="configLocation" value="mybatis-config.xml"></property>
    <property name="dataSource" ref="dataSource"></property>
    <property name="mapperLocations" value="classpath:/mappers/*.xml"></property>
</bean>
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<!--持久层接口加入到Spring容器-->
<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <!--指定接口所在的包-->
    <property name="basePackage" value="com.citi.mapper"></property>
</bean>
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
   <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
       <encoder>
           <pattern>[%thread] %d{HH:mm:ss.SSS} %-5level %logger{36} - %msg%n</pattern>
       </encoder>
   </appender>
    <root level="debug">
        <appender-ref ref="console"/>
    </root>
</configuration>
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@Data
public class Teacher implements Serializable {
    private Integer id;
    private String teacherName;
    private String className;
    private String address;
    private Date birthDate;
}
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public interface TeacherMapper {
    Teacher getTeacherById(Integer id);
}
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.citi.mapper.TeacherMapper">
    <!--开启二级缓存-->
    <cache></cache>
    <select id="getTeacherById" resultType="com.citi.entity.Teacher">
        select * from t_teacher where id = #{id}
    </select>
</mapper>
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@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:application.xml")
public class TeacherMapperTest {
    @Autowired
    private TeacherMapper teacherMapper;
    @Test
    public void getTeacherById() {
        teacherMapper.getTeacherById(1);
    }
}
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public interface TeacherService {
    Teacher findTeacherById(Integer id);
}
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@Service
public class TeacherServiceImpl implements TeacherService {
    @Autowired
    private TeacherMapper teacherMapper;
    @Override
    public Teacher findTeacherById(Integer id) {
        return teacherMapper.getTeacherById(id);
    }
}
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@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:application.xml")
public class TeacherServiceTest {
    @Autowired
    private TeacherService teacherService;
    @Test
    public void findTeacherById() {
        Teacher teacher = teacherService.findTeacherById(1);
        System.out.println(teacher);
    }
}
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@Controller
@RequestMapping("/teacher")
public class TeacherController {
    @Resource
    public TeacherService teacherService;
    @RequestMapping("/{id}")
    public ModelAndView findTeacher(@PathVariable("id") Integer id){
        Teacher teacher = teacherService.findTeacherById(id);
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("teacher",teacher);
        modelAndView.setViewName("success");
        return modelAndView;
    }
}
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <h2>SUCCESS</h2>
    <h3>${teacher}</h3>
</body>
</html>
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