SpringBoot整合Mybatis

在pom.xml中导入mybatis依赖

<!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.2.2</version>
</dependency>

配置application.properties

spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

连接数据库

 

 

导入lombok依赖

<dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

 

创建一个实体类

 

 

 

创建一个Mapper接口类

 

 

整合mybatis

 

 

 

 添加增删改查方法

<?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.maple.Mapper.UserMapper">
    <select id="queryUserList" resultType="user">
        select *
        from user
    </select>

    <select id="querUserById" resultType="user">
        select *
        from user
        where id = #{id}
    </select>

    <insert id="addUser" parameterType="user">
        insert into user (id, name, pwd)
        values (#{id}, #{name}, #{pwd})
    </insert>

    <update id="updateUser" parameterType="user">
        update user
        set name=#{name},
            pwd=#{pwd}
        where id = #{id}
    </update>

    <delete id="deleteUser" parameterType="int">
        delete
        from user
        where id = #{id}
    </delete>

</mapper>