<!--代码生成器-->
<dependency>
  <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-generator</artifactId>
    <version>3.4.0</version>
</dependency>

<!--模板引擎 依赖-->
<dependency>
    <groupId>org.apache.velocity</groupId>
    <artifactId>velocity-engine-core</artifactId>
    <version>2.2</version>
</dependency>

<!-- 数据库驱动 -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.22</version>
</dependency>

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.12</version>
    <scope>provided</scope>
</dependency>

package com.demo.mybatis;


import com.baomidou.mybatisplus.annotation.FieldFill;
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.po.TableFill;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

import java.util.ArrayList;

/**
 * 自动生成类
 **/
public class CodeGenerator {

    /**
     * 必要的配置
     */
    // 生成代码的表名
    private static final String TABLE_NAME = "table_person";

    // 数据库相关配置
    private static final String JDBC_URL = "jdbc:mysql://localhost:3306/data?useUnicode=true&useSSL=false&characterEncoding=utf8";
    private static final String DRIVER_NAME = "com.mysql.cj.jdbc.Driver";
    private static final String USERNAME = "root";
    private static final String PASSWORD = "123456";

    // 注释显示的作者
    private static final String AUTHOR = "mouday";

    // 代码生成指定包名
    private static final String PACKAGE_NAME = "com.example";

    public static void main(String[] args) {

        // ======= 全局配置 =======
        GlobalConfig globalConfig = new GlobalConfig();
        String dir = System.getProperty("user.dir");
        globalConfig.setOutputDir(dir + "/src/main/java"); // 输出目录
        globalConfig.setOpen(false); // 不打开输出目录
        globalConfig.setAuthor(AUTHOR); // 开发人员

        // ======= 数据源配置 =======
        DataSourceConfig dataSource = new DataSourceConfig();
        dataSource.setDriverName(DRIVER_NAME);
        dataSource.setUsername(USERNAME);
        dataSource.setPassword(PASSWORD);
        dataSource.setUrl(JDBC_URL);


        // ======= 包配置 =======
        PackageConfig packageConfig = new PackageConfig();
        packageConfig.setParent(PACKAGE_NAME);


        // ======= 策略配置 =======
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);      // 表名
        strategy.setColumnNaming(NamingStrategy.underline_to_camel); // 字段
        strategy.setInclude(TABLE_NAME);     // 需要生成的表
        strategy.setEntityLombokModel(true); // lombok模型
        strategy.setRestControllerStyle(true); // Rest控制器

        // 自动填充配置
        TableFill createTime = new TableFill("create_time", FieldFill.INSERT);
        TableFill updateTime = new TableFill("update_time", FieldFill.UPDATE);
        ArrayList<TableFill> tableFills = new ArrayList<>();
        tableFills.add(createTime);
        tableFills.add(updateTime);
        strategy.setTableFillList(tableFills);

        // ======= 执行生成 =======
        AutoGenerator autoGenerator = new AutoGenerator();
        autoGenerator.setGlobalConfig(globalConfig);
        autoGenerator.setDataSource(dataSource);
        autoGenerator.setPackageInfo(packageConfig);
        autoGenerator.setStrategy(strategy);
        autoGenerator.execute();
    }
}