导入依赖

<!-- mybatis plus 场景驱动器 -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.5.1</version>
        </dependency>

<!-- mybatis plus 代码自动生成 -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!-- 生成模板 -->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.3</version>
        </dependency>

        <!-- 接口文档 -->
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-annotations</artifactId>
            <version>1.5.22</version>
        </dependency>

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;

import com.baomidou.mybatisplus.generator.config.OutputFile;
import com.baomidou.mybatisplus.generator.fill.Column;
import com.baomidou.mybatisplus.generator.fill.Property;
import org.junit.jupiter.api.Test;
import com.baomidou.mybatisplus.generator.FastAutoGenerator;
import org.springframework.boot.test.context.SpringBootTest;

import java.util.Collections;

@SpringBootTest
class TestApplicationTests {



    @Test
    void contextLoads() {
    //数据库 url,username,password
        FastAutoGenerator.create("jdbc:mysql:///exam?serverTimezone=GMT%2B8", "root", "123456")

                .globalConfig(builder -> {
                    builder.author("author") // 设置作者
                            .enableSwagger() // 开启 swagger 模式
                            .disableOpenDir()
                            .fileOverride() // 覆盖已生成文件
                            .outputDir(System.getProperty("user.dir") + "/src/main/java"); // 指定输出目录
                })
                .packageConfig(builder -> {
                    builder.parent("com.zh") // 设置父包名
                            .moduleName("test") // 设置父包模块名
                            .entity("entity")
                            .service("service")
                            .serviceImpl("service.impl")
                            .controller("controller")
                            .mapper("mapper")
                            .xml("mapper.xml")
                            .pathInfo(Collections.singletonMap(OutputFile.mapperXml, System.getProperty("user.dir") + "/src/main/java/" + this.getClass().getPackage().getName().replace(".", "/") + "/mapper/xml")); // 设置mapperXml生成路径
                })
                .strategyConfig(builder -> {
                    builder.entityBuilder().enableLombok()
                            .addTableFills(new Column("createTime", FieldFill.INSERT))
                            .addTableFills(new Property("updatedTime", FieldFill.INSERT_UPDATE));
                    builder.mapperBuilder().enableMapperAnnotation().build();
                    builder.controllerBuilder().enableHyphenStyle()  // 开启驼峰转连字符
                            .enableRestStyle();  // 开启生成@RestController 控制器
                    builder// 设置需要生成的表名
                            .addTablePrefix("t_") // 设置过滤表前缀
                            .serviceBuilder()
                            .formatServiceFileName("%sService")
                            .formatServiceImplFileName("%sServiceImpl")
                            .entityBuilder()
                            .enableChainModel()
                            .enableLombok()
                            .enableRemoveIsPrefix()
                            .logicDeleteColumnName("isDelete")
                            .logicDeletePropertyName("deleted")
                            .enableTableFieldAnnotation()
                            .controllerBuilder()
                            .formatFileName("%sController")
                            .enableRestStyle()
                            .mapperBuilder()
                            .enableBaseResultMap()  //生成通用的resultMap
                            .superClass(BaseMapper.class)
                            .formatMapperFileName("%sMapper")
                            .enableMapperAnnotation()
//                            .logicDeleteColumnName("deleted")
//                            .logicDeletePropertyName("deleteFlag")
                            .formatXmlFileName("%sMapper");
                })
//                .templateEngine(new FreemarkerTemplateEngine()) // 使用Freemarker引擎模板，默认的是Velocity引擎模板
                .execute();
    }

}