mybatis plus generator工具集成(一)

参数配置文档

配置分两步

1.添加依赖

 <dependency>
      <groupId>com.baomidou</groupId>
      <artifactId>mybatis-plus-boot-starter</artifactId>
      <version>3.0.6</version>
    </dependency>

    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>

      <dependency>
          <groupId>org.freemarker</groupId>
          <artifactId>freemarker</artifactId>
      </dependency>

2.新增CodeGenerator类

package com.sswchat;

import com.baomidou.mybatisplus.annotation.IdType;
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.DateType;
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"+tip+":");
                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) {
        //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");//生成目文件的输出目录
        gc.setAuthor("***");//开发人员
        gc.setOpen(false);//文件生成后，是否需要打开所在路径
        gc.setFileOverride(true);//是否覆盖已有文件
        gc.setEnableCache(false);//是否在xml中添加二级缓存设置
        gc.setActiveRecord(false);//开启ActiveRecord模式
        gc.setBaseResultMap(true);//开启BaseResultMap
        gc.setBaseColumnList(true);//开启BaseColumnList
        gc.setDateType(DateType.TIME_PACK);//时间类型对应策略
        gc.setControllerName("%sController");
        gc.setEntityName("%s");//实体命名方式
        gc.setServiceName("%sService");
        gc.setMapperName("%sMapper");
        gc.setXmlName("%sMapper");
        gc.setIdType(IdType.AUTO);

        mpg.setGlobalConfig(gc);

        //数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl("jdbc:mysql://localhost:3306/sina?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=UTC");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("root");
        mpg.setDataSource(dsc);

        //包配置
        PackageConfig pc = new PackageConfig();
        pc.setParent("com.sswchat");//父包名，如果为空，将下面子包名必须写全部，否则就只需写子包名
        pc.setModuleName(scanner("模块名"));//父包模块名称
        mpg.setPackageInfo(pc);

        //自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {

            }
        };

        // 如果模板引擎是 freemarker
        String templatePath = "/templates/mapper.xml.ftl";

        //自定义输出配置
        List<FileOutConfig> fileOutConfigs = new ArrayList<>();
        //自定义配置会被优先输出
        fileOutConfigs.add(new FileOutConfig(templatePath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                //自定义输出文件名
                return projectPath+"/src/main/com/sswwhat/mapper/mapping/"+tableInfo.getEntityName()+"Mapper"+ StringPool.DOT_XML;
            }
        });

        cfg.setFileOutConfigList(fileOutConfigs);//配置FileOutConfig指定模板文件、输出文件达到自定义文件生成目的
        mpg.setCfg(cfg);
        mpg.setTemplate(new TemplateConfig().setXml(null));

        StrategyConfig strategyConfig = new StrategyConfig();
        strategyConfig.setCapitalMode(true)
                //这里结合Lombok使用，有true,无false
                .setEntityLombokModel(true)
                .setNaming(NamingStrategy.underline_to_camel);
        strategyConfig.setNaming(NamingStrategy.underline_to_camel);
        strategyConfig.setColumnNaming(NamingStrategy.underline_to_camel);
        strategyConfig.setSuperEntityClass("com.baomidou.ant.common.BaseEntity");
        strategyConfig.setRestControllerStyle(true);
        strategyConfig.setSuperControllerClass("com.baomidou.ant.common.BaseController");
        //strategyConfig.setInclude();
        strategyConfig.setSuperEntityColumns("id");
        strategyConfig.setControllerMappingHyphenStyle(true);
        strategyConfig.setTablePrefix(pc.getModuleName()+"_");
        mpg.setStrategy(strategyConfig);
        mpg.setTemplateEngine(new FreemarkerTemplateEngine());

        mpg.execute();

    }
}