pom.xml

  <!-- mysql -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>

<!--mybatis-plus-->
    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-boot-starter</artifactId>
        <version>3.2.0</version>
    </dependency>
    <!-- framework: mybatis-plus代码生成需要一个模板引擎 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-freemarker</artifactId>
    </dependency>
    <!--mp代码生成器-->
    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-generator</artifactId>
        <version>3.2.0</version>
    </dependency>

CodeGenerator

  import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
  import com.baomidou.mybatisplus.core.toolkit.StringPool;
  import com.baomidou.mybatisplus.core.toolkit.StringUtils;
  import com.baomidou.mybatisplus.generator.AutoGenerator;
  import com.baomidou.mybatisplus.generator.InjectionConfig;
  import com.baomidou.mybatisplus.generator.config.*;
  import com.baomidou.mybatisplus.generator.config.po.TableInfo;
  import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
  import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Scanner;
  // 演示例子，执行 main 方法控制台输入模块表名回车自动生成对应项目目录中
  public class CodeGenerator {
  
      /**
       * <p>
       * 读取控制台内容
       * </p>
       */
      public static String scanner(String tip) {
          Scanner scanner = new Scanner(System.in);
          StringBuilder help = new StringBuilder();
          help.append("请输入" + tip + "：");
          System.out.println(help.toString());
          if (scanner.hasNext()) {
              String ipt = scanner.next();
              if (StringUtils.isNotEmpty(ipt)) {
                  return ipt;
              }
          }
          throw new MybatisPlusException("请输入正确的" + tip + "！");
      }
  
      public static void main(String[] args) {
          // 代码生成器
          AutoGenerator mpg = new AutoGenerator();
  
          // 全局配置
          GlobalConfig gc = new GlobalConfig();
          String projectPath = System.getProperty("user.dir");
          gc.setOutputDir(projectPath + "/src/main/java");
          // gc.setOutputDir("D:\\test");
          gc.setAuthor("anonymous");
          gc.setOpen(false);
          // gc.setSwagger2(true); 实体属性 Swagger2 注解
          gc.setServiceName("%sService");
          mpg.setGlobalConfig(gc);
  
          // 数据源配置 数据库名 账号密码
          DataSourceConfig dsc = new DataSourceConfig();
          dsc.setUrl("jdbc:mysql://localhost:3306/vueblog?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=UTC");
          // dsc.setSchemaName("public");
          dsc.setDriverName("com.mysql.cj.jdbc.Driver");
          dsc.setUsername("root");
          dsc.setPassword("123456");
          mpg.setDataSource(dsc);
  
          // 包配置
          PackageConfig pc = new PackageConfig();
          pc.setModuleName(null);
          pc.setParent("com.vueblog");
          mpg.setPackageInfo(pc);
  
          // 自定义配置
          InjectionConfig cfg = new InjectionConfig() {
              @Override
              public void initMap() {
                  // to do nothing
              }
          };
  
          // 如果模板引擎是 freemarker
          String templatePath = "/templates/mapper.xml.ftl";
          // 如果模板引擎是 velocity
          // String templatePath = "/templates/mapper.xml.vm";
  
          // 自定义输出配置
          List<FileOutConfig> focList = new ArrayList<>();
          // 自定义配置会被优先输出
          focList.add(new FileOutConfig(templatePath) {
              @Override
              public String outputFile(TableInfo tableInfo) {
                  // 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！
                  return projectPath + "/src/main/resources/mapper/"
                          + "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
              }
          });
  
          cfg.setFileOutConfigList(focList);
          mpg.setCfg(cfg);
  
          // 配置模板
          TemplateConfig templateConfig = new TemplateConfig();
  
          templateConfig.setXml(null);
          mpg.setTemplate(templateConfig);
  
          // 策略配置
          StrategyConfig strategy = new StrategyConfig();
          strategy.setNaming(NamingStrategy.underline_to_camel);
          strategy.setColumnNaming(NamingStrategy.underline_to_camel);
          strategy.setEntityLombokModel(true);
          strategy.setRestControllerStyle(true);
          strategy.setInclude(scanner("表名，多个英文逗号分割").split(","));
          strategy.setControllerMappingHyphenStyle(true);
          strategy.setTablePrefix("m_");
          mpg.setStrategy(strategy);
          mpg.setTemplateEngine(new FreemarkerTemplateEngine());
          mpg.execute();
      }
  }