MybatisPlus常用依赖、配置、插件方式

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-generator</artifactId>
    <version>3.5.1</version>
</dependency>

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.4.3</version>
</dependency>

<!-- velocity 模板引擎, Mybatis Plus 代码生成器需要 -->
<dependency>
    <groupId>org.apache.velocity</groupId>
    <artifactId>velocity-engine-core</artifactId>
    <version>${velocity.version}</version>
</dependency>

@Configuration
@MapperScan(value = "com.sucker.eduservice.mapper")
public class EduConfig {

    //mybatis-plus插件配置
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.H2));//分页插件
        interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());//乐观锁插件
        return interceptor;
    }
}

@TableField(fill = FieldFill.INSERT)

@TableId(type = IdType.ASSIGN_ID)

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private Long id;
    private String name;
    private Integer age;
    private String email;

    //数据库中是下划线，实体类要驼峰
    @TableField(fill = FieldFill.INSERT)
    private Date createTime;

    @TableField(fill = FieldFill.INSERT_UPDATE)//自动填充注解
    private Date updateTime;

    @Version
    @TableField(fill = FieldFill.INSERT)
    private Integer version;//版本号

    @TableLogic
    private Integer deleted;

}

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

        this.setFieldValByName("version", 1, metaObject);
    }

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

package com.sucker.demo;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.generator.FastAutoGenerator;
import com.baomidou.mybatisplus.generator.config.OutputFile;
import com.baomidou.mybatisplus.generator.config.rules.DateType;
import com.baomidou.mybatisplus.generator.engine.VelocityTemplateEngine;
import org.junit.Test;

import java.util.Collections;


public class CodeGenerator {
    // 演示例子，执行 main 方法控制台输入模块表名回车自动生成对应项目目录中
    @Test
    public void test(){
        FastAutoGenerator.create("jdbc:mysql://localhost:3306/guli_edu?useUnicode=true&characterEncoding=utf8",
                "root", "123456")
                .globalConfig(builder -> {
                    builder.author("sucker") // 设置作者
                            .enableSwagger() // 开启 swagger 模式
                            .dateType(DateType.ONLY_DATE)
                            .fileOverride()
                            .outputDir("D:\\JavaCode\\gulimall\\guli_parent1\\service\\service_edu"+"\\src\\main\\java"); // 指定输出目录
                })
                .packageConfig(builder -> {
                    builder.parent("com.sucker") // 设置父包名
                            .moduleName("eduservice") // 设置父包模块名
                            .controller("controller")
                            .entity("entity")
                            .service("service")
                            .mapper("mapper")
                            .xml("mapper")
                            .pathInfo(Collections.singletonMap(OutputFile.mapperXml,
                                    "D:\\JavaCode\\gulimall\\guli_parent1\\service\\service_edu\\src\\main\\resources\\mapper")); // 设置mapperXml生成路径
                })
                .strategyConfig(builder -> {
                    builder.addInclude("edu_teacher") // 设置需要生成的表名
                            .addTablePrefix("t_", "c_") // 设置过滤表前缀
                            .serviceBuilder()
                            .formatServiceFileName("%sService")
                            .entityBuilder()
                            .enableLombok()
                            .logicDeleteColumnName("is_deleted")
                            .enableTableFieldAnnotation()
                            .controllerBuilder()
                            .formatFileName("%sController")
                            .enableRestStyle()
                            .mapperBuilder()
                            .enableBaseResultMap()
                            .superClass(BaseMapper.class)
                            .formatMapperFileName("%sMapper")
                            .enableMapperAnnotation()
                            .formatXmlFileName("%sMapper");
                })
                .templateEngine(new VelocityTemplateEngine()) // 使用Freemarker引擎模板，默认的是Velocity引擎模板
                .execute();

    }

}