mybatisplus逆向工程

1、mybatisplus依赖

   <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.22</version>
        </dependency>
        <!--        代码生成器依赖-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.4.1</version>
        </dependency>
        <!--        默認-->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.0</version>
        </dependency>

2、mybatisplus逆向生成工具

import com.baomidou.mybatisplus.annotation.DbType;
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.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

import java.util.ArrayList;


public class CodeTest {
    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");//项目路径
        gc.setOutputDir(projectPath + "/src/main/java");//生成路径
        gc.setAuthor("IJun");//作者
        gc.setOpen(false);//是否打开资源管理器
        // gc.setSwagger2(true); 实体属性 Swagger2 注解
        gc.setServiceName("%sService");//去Service的I前缀
        gc.setDateType(DateType.ONLY_DATE);
        mpg.setGlobalConfig(gc);//自动生成器

        //全局配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl("jdbc:mysql://localhost:3306/vuetest?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf8&useSSL=false");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("123456");
        dsc.setDbType(DbType.MYSQL);
        mpg.setDataSource(dsc);
        //包配置
        PackageConfig pc = new PackageConfig();
        pc.setModuleName("library");
        pc.setParent("com.example.vue_test");
        pc.setEntity("entity");
        pc.setMapper("mapper");
        pc.setService("service");
        pc.setController("controller");
        mpg.setPackageInfo(pc);
        //策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setInclude("UserRegister");//表名
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
        strategy.setEntityLombokModel(true);//自动生成lombok
        strategy.setLogicDeleteFieldName("deleted");//逻辑删除
        //自动填充
        TableFill createtime = new TableFill("createtime", FieldFill.INSERT);
        TableFill updatetime = new TableFill("updatetime", FieldFill.INSERT_UPDATE);
        ArrayList<TableFill> tableFills = new ArrayList<>();
        tableFills.add(createtime);
        tableFills.add(updatetime);
        strategy.setTableFillList(tableFills);

        mpg.setStrategy(strategy);
        mpg.execute();//执行


    }
}

2、mybatisplus自动填充

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.util.Date;

@Slf4j
@Component
public  class TimeHandle implements MetaObjectHandler {

    @Override
    public void insertFill(MetaObject metaObject) {
        log.info("用户注册创建时间");
        this.setFieldValByName("createtime",new Date(), metaObject);
        this.setFieldValByName("updatetime",new Date(), metaObject);
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        log.info("用户注册更新时间");
        this.setFieldValByName("updatetime",new Date(), metaObject);
    }

}

3、