引入pom

<dependencies>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.7</version>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.21</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

在resources文件下的mysql.properties文件中添加数据库信息

#连接数据库的驱动
jdbc.driver=com.mysql.jdbc.Driver

#数据库连接字符串
db.url=jdbc:mysql://127.0.0.1:3306/starview?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf8&useSSL=false
db.username=root
db.password=root

resources下创建文件generatorConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>

    <!--  mysql数据源配置文件路径  -->
    <properties resource="mysql.properties"/>

    <context id="DB2Tables" targetRuntime="MyBatis3">
        <!--添加这个标签，就证明不会添加注释到代码里面-->
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
        </commentGenerator>

        <!--配置数据库连接-->
        <jdbcConnection driverClass="${jdbc.driver}"
                        connectionURL="${db.url}"
                        userId="${db.username}"
                        password="${db.password}">
        </jdbcConnection>

        <javaTypeResolver >
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>

        <!--生成Model类存放位置-->
        <javaModelGenerator targetPackage="org.zkkj.starview.dao" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!--生成映射文件存放位置-->
        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!--生成Dao类存放位置-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="org.zkkj.starview.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        <!--生成对应表及类名-->
        <table tableName="user" domainObjectName="User"
               enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false"
               selectByExampleQueryId="false"></table>
<!--        <table tableName="user_video" domainObjectName="UserVideo"-->
<!--               enableCountByExample="false" enableUpdateByExample="false"-->
<!--               enableDeleteByExample="false" enableSelectByExample="false"-->
<!--               selectByExampleQueryId="false"></table>-->


    </context>
</generatorConfiguration>

只需要修改三个东西

image.png

image.png

修改后点击运行 mybatis-generator

image.png

没有安装插件的话，需要安装一下插件

image.png

最后结果

image.png