mybatisplus代码生成器自动填充功能

1.首先：在全局配置中设置时间类型

 // 全局配置
        GlobalConfig gc = new GlobalConfig();
        String projectPath = System.getProperty("user.dir");
        gc.setOutputDir(projectPath + "/src/main/java");
        gc.setAuthor("gg");//作者
        gc.setOpen(false);
        gc.setServiceName("%sService");
        gc.setServiceImplName("%sServiceImpl");
        gc.setDateType(DateType.ONLY_DATE);//设置时间类型Date
        mpg.setGlobalConfig(gc);

效果

2.策略配置中设置自动填充

// 策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
        strategy.setEntityLombokModel(true);
        strategy.setRestControllerStyle(true);

        strategy.setInclude(scanner("表名，多个表名逗号分割").split(","));
        strategy.setControllerMappingHyphenStyle(true);
        strategy.setTablePrefix("d");

        // 自动填充
        TableFill tableFill = new TableFill("createtime", FieldFill.INSERT);
        TableFill tableFill2= new TableFill("updatetime", FieldFill.INSERT_UPDATE);
        List<TableFill> arr = new ArrayList();
        arr.add(tableFill);
        arr.add(tableFill2);
        strategy.setTableFillList(arr);

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

使用MyMetaObjectHandler 器

package com.aa.handler;

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.time.LocalDateTime;
import java.util.Date;

@Slf4j
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    
    

    @Override
    public void insertFill(MetaObject metaObject) {
    
    
        log.info("start insert fill ....");
        this.setFieldValByName("createtime",new Date(),metaObject);
        this.setFieldValByName("updatetime",new Date(),metaObject);
        // this.strictInsertFill(metaObject, "createtime", LocalDateTime.class, LocalDateTime.now()); // 起始版本 3.3.0(推荐使用)
        // 或者
       //  this.strictUpdateFill(metaObject, "createtime", () -> LocalDateTime.now(), LocalDateTime.class); // 起始版本 3.3.3(推荐)
        // 或者
        // this.fillStrategy(metaObject, "createtime", LocalDateTime.now()); // 也可以使用(3.3.0 该方法有bug)
    }

    @Override
    public void updateFill(MetaObject metaObject) {
    
    
        log.info("start update fill ....");
        this.setFieldValByName("updatetime",new Date(),metaObject);
        // this.strictUpdateFill(metaObject, "updatetime", LocalDateTime.class, LocalDateTime.now()); // 起始版本 3.3.0(推荐)
        // 或者
        // this.strictUpdateFill(metaObject, "updatetime", () -> LocalDateTime.now(), LocalDateTime.class); // 起始版本 3.3.3(推荐)
        // 或者
        // this.fillStrategy(metaObject, "updatetime", LocalDateTime.now()); // 也可以使用(3.3.0 该方法有bug)
    }
}

完整版代码：

package com.ss;

import com.baomidou.mybatisplus.annotation.FieldFill;
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.po.TableFill;
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.ArrayList;
import java.util.List;
import java.util.Scanner;

public class CodeGenerator {
    
    

    /**
     * <p>
     * 读取控制台内容
     * </p>
     */
    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.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");
        gc.setAuthor("fff");//作者
        gc.setOpen(false);
        gc.setServiceName("%sService");
        gc.setServiceImplName("%sServiceImpl");
        gc.setDateType(DateType.ONLY_DATE);//设置时间类型Date
        mpg.setGlobalConfig(gc);

        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl("jdbc:mysql://localhost:3306/jiffn1?useSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("1231233");
        mpg.setDataSource(dsc);

        // 包配置
        PackageConfig pc = new PackageConfig();
        pc.setParent("com.fh");//包名
        mpg.setPackageInfo(pc);


        // 策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
        strategy.setEntityLombokModel(true);
        strategy.setRestControllerStyle(true);

        strategy.setInclude(scanner("表名，多个表名逗号分割").split(","));
        strategy.setControllerMappingHyphenStyle(true);
        strategy.setTablePrefix("d");//数据库表名d_drug 的d
        // 自动填充
        TableFill tableFill = new TableFill("createtime", FieldFill.INSERT);
        TableFill tableFill2= new TableFill("updatetime", FieldFill.INSERT_UPDATE);
        List<TableFill> arr = new ArrayList();
        arr.add(tableFill);
        arr.add(tableFill2);
        strategy.setTableFillList(arr);
        mpg.setStrategy(strategy);
        mpg.execute();
    }
}

pom.文件完整版

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>comfh</groupId>
    <artifactId>demo3</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo3</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.3.2</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.31</version>
        </dependency>
        <dependency>
            <groupId>com.ibeetl</groupId>
            <artifactId>beetl</artifactId>
            <version>3.3.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>2.3.4.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.3.4.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${
    
    spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.7.RELEASE</version>
                <configuration>
                    <mainClass>com.fh.Demo3Application</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

在application.properties中配置

spring.datasource.username=root
spring.datasource.password=123123
spring.datasource.url=jdbc:mysql://localhost:3306/jin1?useSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
#日志
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl