1.1MyBatis简介
1.2MyBatis+Spring+MySql简单配置
1.2.1搭建Spring环境
1.2.2建立MySql数据库
/* 建立数据库 */
CREATEDATABASE STUDENT_MANAGER;
USE STUDENT_MANAGER;
/***** 建立student表 *****/
CREATETABLE STUDENT_TBL
(
STUDENT_ID VARCHAR(255) PRIMARYKEY,
STUDENT_NAME VARCHAR(10) NOTNULL,
STUDENT_SEX VARCHAR(10),
STUDENT_BIRTHDAY DATE,
CLASS_ID VARCHAR(255)
);
/*插入学生数据*/
INSERTINTO STUDENT_TBL (STUDENT_ID,
STUDENT_NAME,
STUDENT_SEX,
STUDENT_BIRTHDAY,
CLASS_ID)
VALUES (123456,
'某某某',
'女',
'1980-08-01',
121546
)
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/student_manager?user=root&password=limingnihao&useUnicode=true&characterEncoding=UTF-8
1.2.3搭建MyBatis环境
1.2.3.1创建实体类: StudentEntity
publicclass StudentEntity implements Serializable {
privatestaticfinallong serialVersionUID = 3096154202413606831L;
private ClassEntity classEntity;
private Date studentBirthday;
private String studentID;
private String studentName;
private String studentSex;
public ClassEntity getClassEntity() {
return classEntity;
}
public Date getStudentBirthday() {
return studentBirthday;
}
public String getStudentID() {
return studentID;
}
public String getStudentName() {
return studentName;
}
public String getStudentSex() {
return studentSex;
}
publicvoid setClassEntity(ClassEntity classEntity) {
this.classEntity = classEntity;
}
publicvoid setStudentBirthday(Date studentBirthday) {
this.studentBirthday = studentBirthday;
}
publicvoid setStudentID(String studentID) {
this.studentID = studentID;
}
publicvoid setStudentName(String studentName) {
this.studentName = studentName;
}
publicvoid setStudentSex(String studentSex) {
this.studentSex = studentSex;
}
}
1.2.3.2创建数据访问接口
publicinterface StudentMapper {
public StudentEntity getStudent(String studentID);
public StudentEntity getStudentAndClass(String studentID);
public List<StudentEntity> getStudentAll();
publicvoid insertStudent(StudentEntity entity);
publicvoid deleteStudent(StudentEntity entity);
publicvoid updateStudent(StudentEntity entity);
}
1.2.3.3创建SQL映射语句文件
<?xmlversion="1.0"encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mappernamespace="com.manager.data.StudentMapper">
<resultMaptype="StudentEntity"id="studentResultMap">
<idproperty="studentID"column="STUDENT_ID"/>
<resultproperty="studentName"column="STUDENT_NAME"/>
<resultproperty="studentSex"column="STUDENT_SEX"/>
<resultproperty="studentBirthday"column="STUDENT_BIRTHDAY"/>
</resultMap>
<!-- 查询学生，根据id -->
<selectid="getStudent"parameterType="String"resultType="StudentEntity"resultMap="studentResultMap">
<![CDATA[
SELECT * from STUDENT_TBL ST
WHERE ST.STUDENT_ID = #{studentID}
]]>
</select>
<!-- 查询学生列表 -->
<selectid="getStudentAll"resultType="com.manager.data.model.StudentEntity"resultMap="studentResultMap">
<![CDATA[
SELECT * from STUDENT_TBL
]]>
</select>
</mapper>
1.2.3.4创建MyBatis的mapper配置文件
<?xmlversion="1.0"encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<typeAliases>
<typeAliasalias="StudentEntity"type="com.manager.data.model.StudentEntity"/>
</typeAliases>
<mappers>
<mapperresource="com/manager/data/maps/StudentMapper.xml"/>
</mappers>
</configuration>
1.2.3.5修改Spring 的配置文件
<!-- 导入属性配置文件 -->
<context:property-placeholderlocation="classpath:mysql.properties"/>
<beanid="dataSource"class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<propertyname="driverClassName"value="${jdbc.driverClassName}"/>
<propertyname="url"value="${jdbc.url}"/>
</bean>
<beanid="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<propertyname="dataSource"ref="dataSource"/>
</bean>
<beanid="sqlSessionFactory"class="org.mybatis.spring.SqlSessionFactoryBean">
<propertyname="configLocation"value="classpath:mybatis-config.xml"/>
<propertyname="dataSource"ref="dataSource"/>
</bean>
<!— mapper bean -->
<beanid="studentMapper"class="org.mybatis.spring.MapperFactoryBean">
<propertyname="mapperInterface"value="com.manager.data.StudentMapper"/>
<propertyname="sqlSessionFactory"ref="sqlSessionFactory"/>
</bean>
@Repository
@Transactional
publicinterface StudentMapper {
}
<beanclass="org.mybatis.spring.mapper.MapperScannerConfigurer">
<propertyname="annotationClass"value="org.springframework.stereotype.Repository"/>
<propertyname="basePackage"value="com.liming.manager"/>
<propertyname="sqlSessionFactory"ref="sqlSessionFactory"/>
</bean>
1.2.4测试StudentMapper
@Controller
publicclass TestController {
@Autowired
private StudentMapper studentMapper;
@RequestMapping(value = "index.do")
publicvoid indexPage() {
StudentEntity entity = studentMapper.getStudent("10000013");
System.out.println("name：" + entity.getStudentName());
}
}
使用Junit测试：
Java代码
@RunWith(value = SpringJUnit4ClassRunner.class)
@ContextConfiguration(value = "test-servlet.xml")
publicclass StudentMapperTest {
@Autowired
private ClassMapper classMapper;
@Autowired
private StudentMapper studentMapper;
@Transactional
publicvoid getStudentTest(){
StudentEntity entity = studentMapper.getStudent("10000013");
System.out.println("" + entity.getStudentID() + entity.getStudentName());
List<StudentEntity> studentList = studentMapper.getStudentAll();
for( StudentEntity entityTemp : studentList){
System.out.println(entityTemp.getStudentName());
}
}
}
