SpringBoot 之 Spring Boot 集成 Mybatis（註解形式和XML形式）

一、添加依賴

<!-- mybatis -->
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.1.1</version>
</dependency>

版本說明：

最新 mybatis-spring-boot-starter 的版本爲 1.2.0-SNAPSHOT，依賴的是 spring boot 的 1.4.1，但是還不是 released 版本。教程的版本爲 1.1.1 依賴的 spring boot 的版本爲 1.3.3.RELEASE，兼容 spring boot 1.4.x。(隨着時間的推移版本會發生變化)

 

GitHub: https://github.com/mybatis/spring-boot-starter

 

二、基於 mybatis 註解的集成

配置：

#mysql
spring.datasource.url=jdbc:mysql://localhost/spring_boot_demo?useUnicode=true&characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

bean：

 

package com.roncoo.example.bean;
import java.io.Serializable;
import java.util.Date;
public class RoncooUser implements Serializable {

    private static final long serialVersionUID = 1L;
    private Integer id;
    private String name;
    private Date createTime;
    
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name == null ? null : name.trim();
    }
    public Date getCreateTime() {
        return createTime;
    }
    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append(getClass().getSimpleName());
        sb.append(" [");
        sb.append("Hash = ").append(hashCode());
        sb.append(", id=").append(id);
        sb.append(", name=").append(name);
        sb.append(", createTime=").append(createTime);
        sb.append(", serialVersionUID=").append(serialVersionUID);
        sb.append("]");
        return sb.toString();
    } 
}

mapper:

package com.roncoo.example.mapper;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import com.roncoo.example.bean.RoncooUser;

@Mapper
public interface RoncooUserMapper {

    @Insert(value = "insert into roncoo_user (name, create_time) values (#{name,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP})")
    int insert(RoncooUser record);

    @Select(value = "select id, name, create_time from roncoo_user where id = #{id,jdbcType=INTEGER}")
    @Results(value = { @Result(column = "create_time", property = "createTime", jdbcType = JdbcType.TIMESTAMP) })
    RoncooUser selectByPrimaryKey(Integer id);
}

test:

package com.roncoo.example;
import java.util.Date;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import com.roncoo.example.bean.RoncooUser;
import com.roncoo.example.mapper.RoncooUserMapper;

@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringBootDemo281ApplicationTests {

    @Autowired
    private RoncooUserMapper mapper;

    @Test
    public void insert() {
        RoncooUser roncooUser = new RoncooUser();
        roncooUser.setName("測試");
        roncooUser.setCreateTime(new Date());
        int result = mapper.insert(roncooUser);
        System.out.println(result);
    }

    @Test
    public void select() {
        RoncooUser result = mapper.selectByPrimaryKey(2);
        System.out.println(result);
    } 
}

三、基於 mybatis xml 的集成

配置:

#mybatis
mybatis.mapper-locations: classpath:mybatis/*.xml
#mybatis.type-aliases-package: com.roncoo.example.bean

mapper:

package com.roncoo.example.mapper;
import org.apache.ibatis.annotations.Mapper;
import com.roncoo.example.bean.RoncooUser;

@Mapper
public interface RoncooUserMapper {

    int insert(RoncooUser record);

    RoncooUser selectByPrimaryKey(Integer id);
}

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.roncoo.example.mapper.RoncooUserMapper" > 
    <resultMap id="BaseResultMap" type="com.roncoo.example.bean.RoncooUser" > 
        <id column="id" property="id" jdbcType="INTEGER" />
        <result column="name" property="name" jdbcType="VARCHAR" />
        <result column="create_time" property="createTime" jdbcType="TIMESTAMP" />
    </resultMap>

    <sql id="Base_Column_List" >
        id, name, create_time
    </sql> 
    <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
        select 
            <include refid="Base_Column_List" />
        from roncoo_user
        where id = #{id,jdbcType=INTEGER}
    </select> 
    <insert id="insert" parameterType="com.roncoo.example.bean.RoncooUser" >
        insert into roncoo_user (id, name, create_time)
        values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP})
    </insert>
</mapper>

到此結束！