Mybatis-plus generator逆向工程生成模块代码

1. 什么是AutoGenerator

AutoGenerator 是 MyBatis-Plus 的代码生成器，通过 AutoGenerator 可以快速生成 Entity、Mapper、Mapper XML、Service、Controller 等各个模块的代码，极大的提升了开发效率。

怎么使用？？

引入依赖

<dependencies>
        <!--web 依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--mybatis-plus 依赖-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>{version}</version>
        </dependency>
        <!--mybatis-plus 代码生成器依赖-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.3.1.tmp</version>
        </dependency>
        <!--freemarker 依赖-->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>{freemaker.version}</version>
        </dependency>
        <!--mysql 依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>{mysql.version}</version>
            <scope>runtime</scope>
        </dependency>
    </dependencies>

生成器代码

package com.xiaocan;

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;

public class CodeGenerator {
    public static String scanner(String tip) {
        Scanner scanner = new Scanner(System.in);
        StringBuilder help = new StringBuilder();
        help.append("请输入").append(tip).append("：");
        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) {
        String url = "jdbc:mysql://8.142.92.39:3306/yeb?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai";
        String username = "root";
        String password = "lzc20017";
        AutoGenerator mpg = new AutoGenerator();
        GlobalConfig gc = new GlobalConfig();
        String projectPath = System.getProperty("user.dir");
        gc.setOutputDir(projectPath + "/yeb-generator/src/main/java/");
        //设置作者
        gc.setAuthor("xiaocan");
        //打开输出目录
        gc.setOpen(false);
        //xml 开启BaseResultMap
        gc.setBaseResultMap(true);
        //xml设置 考试BaseResultList
        gc.setBaseColumnList(true);
        //实体属性设置swagger2注解
        gc.setSwagger2(true);
        mpg.setGlobalConfig(gc);
        //数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl(url);
        dsc.setUsername(username);
        dsc.setPassword(password);
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        mpg.setDataSource(dsc);
        //包配置
        PackageConfig pc = new PackageConfig();
        pc.setParent("com.xiaocan.server");
        pc.setMapper("mapper");
        pc.setEntity("pojo");
        pc.setController("controller");
        pc.setService("service");
        pc.setServiceImpl("service.impl");
        mpg.setPackageInfo(pc);
        //自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {

            }
        };
        //如果模板是freemarker
        String templatePath = "/templates/mapper.xml.ftl";
        //如果模板是velocity
//        String templatePath = "/templates/mapper.xml.vm";
        //自定义输出配置
        List<FileOutConfig> focList = new ArrayList<>();
        focList.add(new FileOutConfig(templatePath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return projectPath + "/yeb-generator/src/main/java/resources/mapper/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
            }
        });
        cfg.setFileOutConfigList(focList);
        mpg.setCfg(cfg);

        TemplateConfig templateConfig = new TemplateConfig();
        templateConfig.setXml(null);

        mpg.setTemplate(templateConfig);
        //策略配置
        StrategyConfig strategy = new StrategyConfig();
        //设置表映射到实体的命名策略
        strategy.setNaming(NamingStrategy.underline_to_camel);
        //数据库表字段映射到实体类命名策略
        strategy.setColumnNaming(NamingStrategy.no_change);
        //lombok 模型
        strategy.setEntityLombokModel(true);
        //生成 @RestController
        strategy.setRestControllerStyle(true);
        strategy.setInclude(scanner("表名,多个英文逗号分割").split(","));

        strategy.setControllerMappingHyphenStyle(true);
        //表前缀
        strategy.setTablePrefix("t_");
        mpg.setStrategy(strategy);
        mpg.setTemplateEngine(new FreemarkerTemplateEngine());
        mpg.execute();
    }

}

输入表名,多张表用英文逗号隔开

生成成功