Springboot中mybatis-plus插件用代码自动生成文件

推荐去Mybatis-plus官网浏览  https://mp.baomidou.com/

一、初始项目结构图

二，关于pom.xml文件的配置

我用的freemaker模板配置  数据库用的mysql

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.2.0.RELEASE
         
    
    com.plus
    mybatis-plus2
    0.0.1-SNAPSHOT
    mybatis-plus2
    Demo project for Spring Boot

    
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter
        

        
            org.springframework.boot
            spring-boot-starter-web
        

        
            mysql
            mysql-connector-java
            runtime
        

        
        
            com.baomidou
            mybatis-plus-generator
            3.2.0
        

        
            org.springframework
            spring-core
            4.3.20.RELEASE
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
        

        
            org.freemarker
            freemarker
            2.3.29
        


        
            org.springframework.boot
            spring-boot-starter-test
            test
            
                
                    org.junit.vintage
                    junit-vintage-engine
                
            
        
    

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

 

三、application.properties文件

server.port=8081
server.context.path=/

#配置数据库
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver

#指定HttpServletRequest的属性是否可以覆盖controller的model的同名项
spring.freemarker.allow-request-override=false
#req访问request
spring.freemarker.request-context-attribute=req
#后缀名freemarker默认后缀为.ftl，当然你也可以改成自己习惯的.html
spring.freemarker.suffix=.ftl
#设置响应的内容类型
spring.freemarker.content-type=text/html;charset=utf-8
#是否允许mvc使用freemarker
spring.freemarker.enabled=true
#是否开启template caching
spring.freemarker.cache=false
#设定模板的加载路径，多个以逗号分隔，默认: [“classpath:/templates/”]
spring.freemarker.template-loader-path=classpath:/templates/
#设定Template的编码
spring.freemarker.charset=UTF-8
#数字格式化，无小数点
spring.freemarker.number_format=0.##

#打印mybatis的注解sql语句
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
#使用xml写sql语句就需要加上这行注解,第一个xml为文件夹的名字
mybatis.mapper-locations=classpath:xml/*.xml

四、自动生成类CodeGenerator

package com.plus.util;

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 {

    /**
     * 读取控制台内容
     */

    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 + "！");
    }


    //代码生成器
    public static void main(String[] args) {
        AutoGenerator mpg=new AutoGenerator();

        //全局配置
        GlobalConfig gc=new GlobalConfig();
        //获得项目文件生成路径
        String projectPath = System.getProperty("user.dir");
        gc.setOutputDir(projectPath+"/mybatis-plus2/src/main/java");
        gc.setAuthor("zefan");
        gc.setOpen(false);
        mpg.setGlobalConfig(gc);
        System.out.println(gc.toString());


        //数据源配置
        DataSourceConfig dsc=new DataSourceConfig();
        dsc.setUrl("jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT");
        dsc.setDriverName("com.mysql.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("1234");
        mpg.setDataSource(dsc);


        //包配置
        PackageConfig pc=new PackageConfig();
        pc.setModuleName(scanner("模块名"));
        System.out.println(pc.getModuleName());
        pc.setParent("com.plus");
        mpg.setPackageInfo(pc);


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

            }
        };
        //  freemarker模板引擎
        String templatePath = "/templates/mapper.xml.ftl";
        //自定义输出配置
        List focList=new ArrayList<>();
        //自定义配置会被优先输出
        focList.add(new FileOutConfig(templatePath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                //自定义输出文件名
                return projectPath + "/mybatis-plus2/src/main/resources/mapper/" + pc.getModuleName() + "/" + tableInfo.getEntityName()+ "Mapper" + StringPool.DOT_XML;
            }
        });

        cfg.setFileOutConfigList(focList);
        mpg.setCfg(cfg);

        //配置模板
        TemplateConfig templateConfig=new TemplateConfig();
        templateConfig.setXml(null);
        mpg.setTemplate(templateConfig);

        //策略配置
        StrategyConfig strategy=new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
        //strategy.setSuperEntityClass("com.plus.commom.BaseEntity");
        strategy.setEntityLombokModel(false);
        strategy.setRestControllerStyle(true);
        //公共父类
        //strategy.setSuperControllerClass("com.plus.common.BaseController");
        //写于父类中的公共字段
        strategy.setSuperEntityColumns("id");
        strategy.setInclude(scanner("表名，多个英文逗号分割").split(","));
        strategy.setControllerMappingHyphenStyle(true);
        strategy.setTablePrefix(pc.getModuleName()+"_");
        mpg.setStrategy(strategy);
        mpg.setTemplateEngine(new FreemarkerTemplateEngine());


        mpg.execute();


    }


}

五、自动生成的结构图

六、sql脚本

DROP TABLE IF EXISTS `user`;

CREATE TABLE `user` (
  `id` bigint(20) NOT NULL COMMENT '用户ID',
  `name` varchar(50) DEFAULT NULL COMMENT '用户名',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='用户表';

/*Data for the table `user` */

insert  into `user`(`id`,`name`) values (1,'张三');

insert  into `user`(`id`,`name`) values(2,'李四');

insert  into `user`(`id`,`name`) values(3,'王五');