代码生成器，可以生成entity,controller,service,mapper里的代码，带有swagger2

      package com.zb.config.mybatisplus;

import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.rules.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.VelocityTemplateEngine;
import org.apache.commons.lang3.StringUtils;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

/**
 * @ClassName CodeGenerator
 * @Description 代码生成器
 * @Author yso
 **/
public class CodeGenerator {

  /**
   * service 模块
   */
  public static final String SERVICE_MODULAR_NAME = "myplus.server";
  public static final String SERVICE_MODULAR_PATH = "com/zb/";

  /**
   * api 模块
   */
  public static final String API_MODULAR_NAME = "myplus.api";
  public static final String API_MODULAR_PATH = "com/zb/";
  /**
   * 基本路径
   */
  public static final String SRC_MAIN_JAVA = "/src/main/java/";

  /**
   * 资源路径
   */
  public static final String SRC_RESOURCE_JAVA = "/src/main/resources/";

  /**
   * 作者
   */
  public static final String AUTHOR = "zj";

  /**
   * 是否是 rest 接口
   */
  private static final boolean REST_CONTROLLER_STYLE = true;

  public static final String JDBC_MYSQL_URL = "jdbc:mysql://127.0.0.01:3306/shop_user?useUnicode=true&characterEncoding=utf8&useSSL=true&serverTimezone=Asia/Shanghai";

  public static final String JDBC_DRIVER_NAME = "com.mysql.cj.jdbc.Driver";

  public static final String JDBC_USERNAME = "root";

  public static final String JDBC_PASSWORD = "1002981655";

  public static void main(String[] args) {
    String tableName = scanner("表名");
    autoGenerator(tableName);
  }

  public static void autoGenerator(String tableName) {
    new AutoGenerator()
        .setGlobalConfig(getGlobalConfig())
        .setDataSource(getDataSourceConfig())
        .setPackageInfo(getPackageConfig())
        .setStrategy(getStrategyConfig(tableName))
        .setTemplateEngine(new VelocityTemplateEngine())
        .setTemplate(getTemplateConfig())
        .setCfg(getInjectionConfig())
        .execute();
  }

  private static StrategyConfig getStrategyConfig(String tableName) {
    return new StrategyConfig()
        .setNaming(NamingStrategy.underline_to_camel)
        .setColumnNaming(NamingStrategy.underline_to_camel)
        .setInclude(tableName)
        .setRestControllerStyle(REST_CONTROLLER_STYLE)
        .setEntityLombokModel(true)
        .setEntityBuilderModel(true)
        .setControllerMappingHyphenStyle(true);
  }

  private static PackageConfig getPackageConfig() {
    //获取项目目录
    String parentDir = System.getProperty("user.dir");
    String modelDir =
        parentDir + "/" + API_MODULAR_NAME + SRC_MAIN_JAVA + API_MODULAR_PATH + "entity";
    String mapperDir =
        parentDir + "/" + SERVICE_MODULAR_NAME + SRC_MAIN_JAVA + SERVICE_MODULAR_PATH + "mapper";
    String xmlDir = parentDir + "/" + SERVICE_MODULAR_NAME + SRC_RESOURCE_JAVA + "mapper";
    String controllerDir =
        parentDir + "/" + SERVICE_MODULAR_NAME + SRC_MAIN_JAVA + SERVICE_MODULAR_PATH
            + "controller";
    String serviceDir =
        parentDir + "/" + SERVICE_MODULAR_NAME + SRC_MAIN_JAVA + SERVICE_MODULAR_PATH + "service";
    String serviceImplDir =
        parentDir + "/" + SERVICE_MODULAR_NAME + SRC_MAIN_JAVA + SERVICE_MODULAR_PATH
            + "service/impl";
    //设置自定义输出目录（分布式项目使用）
    Map<String, String> pathInfo = new HashMap<>();
    pathInfo.put(ConstVal.ENTITY_PATH, modelDir);
    pathInfo.put(ConstVal.MAPPER_PATH, mapperDir);
    pathInfo.put(ConstVal.XML_PATH, xmlDir);
    pathInfo.put(ConstVal.SERVICE_PATH, serviceDir);
    pathInfo.put(ConstVal.SERVICE_IMPL_PATH, serviceImplDir);
    pathInfo.put(ConstVal.CONTROLLER_PATH, controllerDir);
    return new PackageConfig()
        .setPathInfo(pathInfo)
        .setParent("com.zb")
        .setService("service")
        .setServiceImpl("service.impl")
        .setController("controller")
        .setMapper("mapper")
        .setEntity("entity");
  }

  private static DataSourceConfig getDataSourceConfig() {
    return new DataSourceConfig()
        .setUrl(JDBC_MYSQL_URL)
        .setDriverName(JDBC_DRIVER_NAME)
        .setUsername(JDBC_USERNAME)
        .setPassword(JDBC_PASSWORD);
  }

  private static GlobalConfig getGlobalConfig() {
    return new GlobalConfig()
        .setDateType(DateType.ONLY_DATE)
        .setIdType(IdType.UUID)
        .setAuthor(AUTHOR)
        .setBaseColumnList(true)
        .setSwagger2(true)
        .setEnableCache(false)
        .setServiceName("%sService")
        .setEntityName("%sModel")
        .setFileOverride(true)
        .setBaseResultMap(true)
        .setOpen(false);
  }


  private static InjectionConfig getInjectionConfig() {
    return new InjectionConfig() {
      @Override
      public void initMap() {
        Map map = new HashMap();
        map.put("date", getDateTime());
        setMap(map);
      }
    };
  }

  private static String getDateTime() {
    LocalDateTime localDate = LocalDateTime.now();
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm");
    return localDate.format(formatter);
  }

  private static TemplateConfig getTemplateConfig() {
    return new TemplateConfig()
        .setController("/template/controller.java.vm")
        .setService("/template/service.java.vm")
        .setServiceImpl("/template/serviceImpl.java.vm")
        .setEntity("/template/entity.java.vm")
        .setMapper("/template/mapper.java.vm")
        .setXml("/template/mapper.xml.vm");
  }

  private static String scanner(String tip) {
    Scanner scanner = new Scanner(System.in);
    StringBuilder sb = new StringBuilder();
    sb.append("please input " + tip + " : ");
    System.out.println(sb.toString());
    if (scanner.hasNext()) {
      String ipt = scanner.next();
      if (StringUtils.isNotEmpty(ipt)) {
        return ipt;
      }
    }
    throw new MybatisPlusException("please input the correct " + tip + ". ");
  }
}