MyBatisPlus代码生成器 以及 自动填充封装

 创建MP代码生成器

pom.xml文件

<!--代码生成器        -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.28</version>
        </dependency>
        <!-- 模板引擎 -->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.0</version>
        </dependency>

在test/java目录下创建包，创建代码生成器：CodeGenerator.java

public class CodeGenerator {
        @Test
        public void run() {

            // 1、创建代码生成器
            AutoGenerator mpg = new AutoGenerator();

            // 2、全局配置
            GlobalConfig gc = new GlobalConfig();
            String projectPath = System.getProperty("user.dir");
            System.out.println(projectPath);
            gc.setOutputDir("D:\\workSpace\\tianhu_parent\\service\\service_edu" + "/src/main/java");
            gc.setAuthor("test.java");
            gc.setOpen(false); //生成后是否打开资源管理器
            gc.setFileOverride(false); //重新生成时文件是否覆盖
            /*
             * mp生成service层代码，默认接口名称第一个字母有 I
             * UcenterService
             * */
            gc.setServiceName("%sService");	//去掉Service接口的首字母I
            gc.setIdType(IdType.ID_WORKER_STR); //主键策略
            gc.setDateType(DateType.ONLY_DATE);//定义生成的实体类中日期类型
            gc.setSwagger2(true);//开启Swagger2模式

            mpg.setGlobalConfig(gc);

            // 3、数据源配置
            DataSourceConfig dsc = new DataSourceConfig();
            dsc.setUrl("jdbc:mysql://localhost:3306/education?serverTimezone=GMT%2B8");
            dsc.setDriverName("com.mysql.cj.jdbc.Driver");
            dsc.setUsername("root");
            dsc.setPassword("root");
            dsc.setDbType(DbType.MYSQL);
            mpg.setDataSource(dsc);

            // 4、包配置
            PackageConfig pc = new PackageConfig();
            //包名
            pc.setModuleName("serviceedu"); //模块名
            pc.setParent("com.education");
            pc.setController("controller");
            pc.setEntity("entity");
            pc.setService("service");
            pc.setMapper("mapper");
            mpg.setPackageInfo(pc);

            // 5、策略配置
            StrategyConfig strategy = new StrategyConfig();
            strategy.setInclude("edu_teacher");
            strategy.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略
            strategy.setTablePrefix(pc.getModuleName() + "_"); //生成实体时去掉表前缀

            strategy.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略
            strategy.setEntityLombokModel(true); // lombok 模型 @Accessors(chain = true) setter链式操作

            strategy.setRestControllerStyle(true); //restful api风格控制器
            strategy.setControllerMappingHyphenStyle(true); //url中驼峰转连字符

            mpg.setStrategy(strategy);

            // 6、执行
            mpg.execute();
        }
    }

需要修改的配置

 修改完以后 执行 包结构自动生成

 自动封装填充 填充类 MyMetaObjectHandler

@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        this.setFieldValByName("gmtCreate", new Date(), metaObject);
        this.setFieldValByName("gmtModified", new Date(), metaObject);
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("gmtModified", new Date(), metaObject);

    }
}

 实体类设置

    @ApiModelProperty(value = "逻辑删除 1（true）已删除， 0（false）未删除")
    @TableLogic
    private Integer isDeleted;

    @ApiModelProperty(value = "创建时间")
    private Date gmtCreate;

    @ApiModelProperty(value = "更新时间")
    private Date gmtModified;

项目完整的pom文件

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.4</version>
        <relativePath/>
    </parent>
    <groupId>org.example</groupId>
    <artifactId>RSADemo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.10</version>
        </dependency>
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>core</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>javase</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--mybatis-plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.5.1</version>
        </dependency>
<!--代码生成器        -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.28</version>
        </dependency>
        <!-- 模板引擎 -->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.0</version>
        </dependency>


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

        <!--swagger-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.10.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.10.0</version>
        </dependency>

        <!--        连接数据库-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>