环境：Mysql8.0 + win10 + maven + springboot + mybaties-plus + jdk1.8

文件目录：（备注：实体类Vo是我手动改的。。。）

pom文件：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.yitianren</groupId>
    <artifactId>yitian-testspringboot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>yitian-testspringboot</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <log4j.version>1.3.8.RELEASE</log4j.version>
        <druid.version>1.0.26</druid.version>
        <mybatis-plus.version>2.1.9</mybatis-plus.version>
        <mybatisplus-spring-boot-starter.version>1.0.5</mybatisplus-spring-boot-starter.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

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

        <!--Druid数据连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.0</version>
        </dependency>

        <!-- mysql connector数据库驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>


        <!-- Mybatis-plus依赖 -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatisplus-spring-boot-starter</artifactId>
            <version>1.0.5</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>${mybatis-plus.version}</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

package com.yitianren.yitiantestspringboot.mybatisplus.config;

import com.baomidou.mybatisplus.enums.IdType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

/**
  *@Author:yitianRen
  *@Date:10:13 2019/9/12
  *Description: Myabties-plus逆向工程生   链接https://www.cnblogs.com/yysbolg/p/6768194.html
  */
public class Generator {

    public static void main(String[] args) {
        String packageName = "com.yitianren.yitiantestspringboot";
        boolean serviceNameStartWithI = false;//auth -> UserService, 设置成true: auth -> IUserService
        generateByTables(serviceNameStartWithI, packageName, "yitianren", "school", "teacher");

        System.out.println("completed...");
    }

    /**
     * @param serviceNameStartWithI
     * @param packageName   包名
     * @param author  作者
     * @param database  数据库名
     * @param tableNames 表名
     */
    private static void generateByTables(boolean serviceNameStartWithI, String packageName, String author, String database, String... tableNames) {
        GlobalConfig config = new GlobalConfig();
        String dbUrl = "jdbc:mysql://127.0.0.1:3306/" + database + "?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC";
        DataSourceConfig dataSourceConfig = new DataSourceConfig();
        dataSourceConfig.setDbType(DbType.MYSQL)
                .setUrl(dbUrl)
                .setUsername("root")
                .setPassword("root")
                .setDriverName("com.mysql.cj.jdbc.Driver");
        StrategyConfig strategyConfig = new StrategyConfig();
        strategyConfig
                .setCapitalMode(true)
                .setEntityLombokModel(false)
                .setDbColumnUnderline(true)
                .setNaming(NamingStrategy.underline_to_camel)
                .setInclude(tableNames);//修改替换成你需要的表名，多个表名传数组

        config.setActiveRecord(false)
                .setAuthor(author)
                .setOutputDir("F:\\ideaworkspase\\yitian-testspringboot\\src\\main\\java")//生成文件路径就是你实际项目的路径
                .setFileOverride(true)
                .setBaseResultMap(true)//XML ResultMap
                .setEnableCache(false);//二级缓存
        if (!serviceNameStartWithI) {
            config.setServiceName("%sService")//%s为实体类名称后加services  还有其他文件得名称都可更改，这里我没有找到Entity修改的  待确定？
                   .setIdType(IdType.AUTO);//主键生成策略
        }
        new AutoGenerator().setGlobalConfig(config)
                .setDataSource(dataSourceConfig)
                .setStrategy(strategyConfig)
                .setPackageInfo(new PackageConfig()//设置包名
                                .setParent(packageName)
                                .setController("controller")
                                .setEntity("entity")
                                .setMapper("mapper")
                                .setService("service")
                                .setServiceImpl("service.impl")
                                .setXml("mapper")
                ).execute();
    }

}