前言

1.pom文件引入

代码如下（示例）：

<!-- 阿里开源数据源 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.8</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.8</version>
        </dependency>

        <!-- MariaDB数据库 -->
        <dependency>
            <groupId>org.mariadb.jdbc</groupId>
            <artifactId>mariadb-java-client</artifactId>
            <version>2.7.5</version>
        </dependency>

        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.1</version>
        </dependency>

        <!-- 通用mapper工具 -->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>1.2.4</version>
        </dependency>

        <!-- 分页工具 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.3</version>
        </dependency>

        <!-- mybatis逆向生成工具 -->
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.4</version>
            <scope>compile</scope>
            <optional>true</optional>
        </dependency>

2.generatorConfig.xml文件配置

代码如下（示例）：

<!-- 通用mapper所在目录 -->
        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
            <property name="mappers" value="com.it.springboot.my.mapper.MyMapper"/>
        </plugin>

        <!-- jdbc连接 -->
        <jdbcConnection driverClass="org.mariadb.jdbc.Driver"
                        connectionURL="jdbc:mariadb://localhost:3306/test"
                        userId="root"
                        password="root">
        </jdbcConnection>

        <!-- 生成实体类地址 -->
        <javaModelGenerator targetPackage="com.it.springboot.pojo"
                            targetProject="src/main/java">
        </javaModelGenerator>

        <!-- 生成mapxml文件 -->
        <sqlMapGenerator targetPackage="mapper"
                         targetProject="src/main/resources">
        </sqlMapGenerator>

        <!-- 生成mapxml对应client，也就是接口dao -->
        <javaClientGenerator targetPackage="com.it.springboot.mapper"
                             targetProject="src/main/java" type="XMLMAPPER">
        </javaClientGenerator>

        <!-- 配置表信息 -->
        <table tableName="student_t" domainObjectName="StudentVO" mapperName="StudentDao"></table>

3.启动类GeneratorDisplay配置

代码如下（示例）：

public void generator() throws XMLParserException, IOException, InvalidConfigurationException, SQLException, InterruptedException {
        List<String> warnings = new ArrayList<>();
        boolean overwrite = true;
        // 指定逆向工程路径
        File configFile = new File("generatorConfig.xml");
        ConfigurationParser cp = new ConfigurationParser(warnings);
        Configuration configuration = cp.parseConfiguration(configFile);
        DefaultShellCallback callback = new DefaultShellCallback(overwrite);
        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(configuration, callback, warnings);
        myBatisGenerator.generate(null);
    }