mybatisPlus代码生成器

1 前言

mybatisPlus的代码生成器可以帮助我们省去很多需要手动去写的配置如：Entity、Mapper、Mapper XML、Service、Controller模块代码

2 实操

1）创建一个springBoot项目（这里不再演示）

2）引入相关依赖

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.6.7
         
    
    com.liubujun
    mybatis-plus-auto-generator
    0.0.1-SNAPSHOT
    mybatis-plus-auto-generator
    Demo project for Spring Boot
    
        1.8
    
    
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.boot
            spring-boot-starter
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
            com.baomidou
            mybatis-plus-boot-starter
            3.4.0
        
        
        
            com.baomidou
            mybatis-plus-generator
           3.4.0
        
        
        
            org.apache.velocity
            velocity-engine-core
            2.2
        
        
            mysql
            mysql-connector-java
        
        
            org.projectlombok
            lombok
        

    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

3）配置文件

spring.datasource.username=root
spring.datasource.password=lj123456
spring.datasource.url=jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

4）数据库表

 5）编写配置

package com.liubujun;


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

import java.util.Scanner;

/**
 * @Author: liubujun
 * @Date: 2022/5/7 14:54
 */


public class Generator {

    public static String scanner(String tip) {
        Scanner scanner = new Scanner(System.in);
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("请输入").append(tip).append("：");
        System.out.println(stringBuilder.toString());
        if (scanner.hasNext()) {
            String ipt = scanner.next();
            if (StringUtils.isNotBlank(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");//设置代码生成路径
        gc.setFileOverride(true);//是否覆盖以前文件
        gc.setOpen(false);//是否打开生成目录
        gc.setAuthor("liubujun");//设置项目作者名称
        gc.setIdType(IdType.AUTO);//设置主键策略
        gc.setBaseResultMap(true);//生成基本ResultMap
        gc.setBaseColumnList(true);//生成基本ColumnList
        gc.setServiceName("%sService");//去掉服务默认前缀
        gc.setDateType(DateType.ONLY_DATE);//设置时间类型
//        gc.setSwagger2(true); //实体属性 swagger注解
        mpg.setGlobalConfig(gc);

        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl("jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("lj123456");
        mpg.setDataSource(dsc);

        // 包配置
        PackageConfig pc = new PackageConfig();
        pc.setParent("com.liubujun");
        pc.setMapper("mapper");
        pc.setXml("mapper.xml");
        pc.setEntity("pojo");
        pc.setService("service");
        pc.setServiceImpl("service.impl");
        pc.setController("controller");
        mpg.setPackageInfo(pc);

        // 策略配置
        StrategyConfig sc = new StrategyConfig();
        sc.setNaming(NamingStrategy.underline_to_camel);
        sc.setColumnNaming(NamingStrategy.underline_to_camel);
        sc.setEntityLombokModel(true);//自动lombok
        sc.setRestControllerStyle(true);
        sc.setControllerMappingHyphenStyle(true);

        sc.setLogicDeleteFieldName("deleted");//设置逻辑删除


        //  sc.setTablePrefix("tbl_"); 设置表名前缀
        sc.setInclude(scanner("表名，多个英文逗号分割").split(","));
        mpg.setStrategy(sc);

        // 生成代码
        mpg.execute();

    }


}

 6）测试：

输入想要生成相关配置的表名

 结果如下：