Java+Spring+MySql环境中安装和配置MyBatis的教程
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1.MyBatis简介与配置MyBatis+Spring+MySql 1.1MyBatis简介 1.2.2建立MySql数据库
/* 建立数据库 */
CREATE DATABASE STUDENT_MANAGER;
USE STUDENT_MANAGER;
/***** 建立student表 *****/
CREATE TABLE STUDENT_TBL
(
STUDENT_ID VARCHAR(255) PRIMARY KEY,STUDENT_NAME VARCHAR(10) NOT NULL,STUDENT_SEX VARCHAR(10),STUDENT_BIRTHDAY DATE,CLASS_ID VARCHAR(255)
);
/*插入学生数据*/
INSERT INTO STUDENT_TBL (STUDENT_ID,STUDENT_NAME,STUDENT_SEX,STUDENT_BIRTHDAY,CLASS_ID)
VALUES (123456,'某某某','女','1980-08-01',121546
)
创建连接MySql使用的配置文件mysql.properties。 jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/student_manager?user=root&password=limingnihao&useUnicode=true&characterEncoding=UTF-8 1.2.3.1创建实体类: StudentEntity
public class StudentEntity implements Serializable {
private static final long 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;
}
public void setClassEntity(ClassEntity classEntity) {
this.classEntity = classEntity;
}
public void setStudentBirthday(Date studentBirthday) {
this.studentBirthday = studentBirthday;
}
public void setStudentID(String studentID) {
this.studentID = studentID;
}
public void setStudentName(String studentName) {
this.studentName = studentName;
}
public void setStudentSex(String studentSex) {
this.studentSex = studentSex;
}
}
1.2.3.2创建数据访问接口
public interface StudentMapper {
public StudentEntity getStudent(String studentID);
public StudentEntity getStudentAndClass(String studentID);
public List<StudentEntity> getStudentAll();
public void insertStudent(StudentEntity entity);
public void deleteStudent(StudentEntity entity);
public void updateStudent(StudentEntity entity);
}
1.2.3.3创建SQL映射语句文件 Student类的sql语句文件StudentMapper.xml
<?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.manager.data.StudentMapper">
<resultMap type="StudentEntity" id="studentResultMap">
<id property="studentID" column="STUDENT_ID"/>
<result property="studentName" column="STUDENT_NAME"/>
<result property="studentSex" column="STUDENT_SEX"/>
<result property="studentBirthday" column="STUDENT_BIRTHDAY"/>
</resultMap>
<!-- 查询学生,根据id -->
<select id="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 -->
<select id="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
<?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>
<typeAliases>
<typeAlias alias="StudentEntity" type="com.manager.data.model.StudentEntity"/>
</typeAliases>
<mappers>
<mapper resource="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-placeholder location="classpath:mysql.properties" />
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
</bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis-config.xml" />
<property name="dataSource" ref="dataSource" />
</bean>
<!― mapper bean -->
<bean id="studentMapper" class="org.mybatis.spring.MapperFactoryBean">
<property name="mapperInterface" value="com.manager.data.StudentMapper" />
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
也可以不定义mapper的bean,使用注解:
@Repository
@Transactional
public interface StudentMapper {
}
对应的需要在dispatcher-servlet.xml中加入扫描: <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="annotationClass" value="org.springframework.stereotype.Repository"/> <property name="basePackage" value="com.liming.manager"/> <property name="sqlSessionFactory" ref="sqlSessionFactory"/> </bean> (编辑:安卓应用网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
