引入依赖

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.5.7</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.33</version>
        </dependency>

快速生成

public class FastAutoGeneratorTest {

    public static void main(String[] args) {

        String url = "jdbc:mysql://127.0.0.1:3306/study?serverTimezone=GMT%2B8&characterEncoding=utf-8&useSSL=false";
        String username = "root";
        String password = "";

        FastAutoGenerator.create(url, username, password)
                .globalConfig(builder -> {
                    builder.author("qaqaq") // 设置作者
                            .enableSwagger() // 开启 swagger 模式
                            .outputDir("D://Java//Code//study//mybatisplus-create"); // 指定输出目录
                })
                .dataSourceConfig(builder ->
                        builder.typeConvertHandler((globalConfig, typeRegistry, metaInfo) -> {
                            int typeCode = metaInfo.getJdbcType().TYPE_CODE;
                            if (typeCode == Types.SMALLINT) {
                                // 自定义类型转换
                                return DbColumnType.INTEGER;
                            }
                            return typeRegistry.getColumnType(metaInfo);
                        })
                )
                .packageConfig(builder ->
                        builder.parent("top.qaqaq") // 设置父包名
                                .moduleName("mybatisplus") // 设置父包模块名
                                .pathInfo(Collections.singletonMap(OutputFile.xml, "D://Java//Code//study//mybatisplus-create")) // 设置mapperXml生成路径
                )
                .strategyConfig(builder ->
                        builder.addInclude("t_user") // 设置需要生成的表名
                                .addTablePrefix("t_", "c_") // 设置过滤表前缀
                )
                .templateEngine(new FreemarkerTemplateEngine()) // 使用Freemarker引擎模板，默认的是Velocity引擎模板
                .execute();

    }

}