第十二章：springboot 整合 mybaties

第一步引入依賴

<!-- 引入starter-->
					<dependency>
					    <groupId>org.mybatis.spring.boot</groupId>
					    <artifactId>mybatis-spring-boot-starter</artifactId>
					    <version>1.3.2</version>
					    <scope>runtime</scope>			    
					</dependency>
		 			
		 	<!-- MySQL的JDBC驅動包	-->	
		 			<dependency>
						<groupId>mysql</groupId>
						<artifactId>mysql-connector-java</artifactId>
						<scope>runtime</scope>
					</dependency> 
			<!-- 引入第三方數據源 -->		
					<dependency>
						<groupId>com.alibaba</groupId>
						<artifactId>druid</artifactId>
						<version>1.1.6</version>
					</dependency>

 

第二步配置文件

#數據源配置
spring.datasource.url=jdbc:mysql://localhost:3306/hospital_vaccine_manage?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=*****
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
#druid鏈接池
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
#增長打印sql語句，通常用於本地開發測試
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
#mybaties配置
mybatis.mapper-locations = classpath:mapper/*Mapper.xml
mybatis.type-aliases-package = com.example.pojo

 

 

在classPath下新建文件夾 mapper ，用來存放 mapper.xml文件

 

第三步啓動類增長註解掃描 mapper.java ，通常稱爲 dao 層

@MapperScan("com.example.dao")

 

第四步 開發

例如 childsMapper.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.example.dao.ChildsDao" >
  <resultMap id="BaseResultMap" type="com.example.pojo.Childs" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="user_name" property="userName" jdbcType="VARCHAR" />
    <result column="pass_word" property="passWord" jdbcType="VARCHAR" />
    <result column="birthday" property="birthday" jdbcType="DATE" />
    <result column="sex" property="sex" jdbcType="VARCHAR" />
    <result column="birth_city" property="birthCity" jdbcType="VARCHAR" />
    <result column="real_name" property="realName" jdbcType="VARCHAR" />
    <result column="father_name" property="fatherName" jdbcType="VARCHAR" />
    <result column="monther_name" property="montherName" jdbcType="VARCHAR" />
    <result column="parent_phone" property="parentPhone" jdbcType="VARCHAR" />
    <result column="user_role" property="userRole" jdbcType="VARCHAR" />
    <result column="enable_flag" property="enableFlag" jdbcType="VARCHAR" />
  </resultMap>
  <select id="findAll" resultMap="BaseResultMap">
    select * from childs
  </select>
</mapper>

childsDao.java

@Mapper
public interface ChildsDao {
    List<Childs> findAll();
}

注意 @Mapper 

從mybatis3.4.0開始加入了@Mapper註解，目的就是爲了避免再寫mapper映射文件，我以爲寫SQL比較靈活

childsService.java

@Service
public class ChildsService {
    @Autowired
    private ChildsDao childsDao;

    public List<Childs> test1(){
        List<Childs> childsList=childsDao.findAll();
        return childsList;
    }
}

controller 這層不作演示