1 引入pom

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot</artifactId><version>2.7.14</version>
</dependency>
<dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.5.3.2</version>
</dependency>
<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.29</version>
</dependency>

2 编写配置类MybatisPlusConfig

@Configuration
public class MybatisPlusConfig {/*** 分页插件*/@Beanpublic MybatisPlusInterceptor mybatisPlusInterceptor() {MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));return interceptor;}
}

3 业务实现

3.1 Controller层

    @AutowiredIComponentService componentService;@ApiOperation(value = "查询基础组件列表", notes = "根据条件查询基础组件列表")@GetMapping("/list")public ResponseMessage<IPage<Component>> queryList(@RequestBody QueryEntity<ComponentDTO> queryEntity){IPage<Component> page = new Page<>(queryEntity.getPageNum(), queryEntity.getPageSize());LambdaQueryWrapper<Component> query = new LambdaQueryWrapper<>();
//        query.eq(Component::getType, queryEntity.getQuery().getType());return ResponseMessage.success("查询成功",componentService.queryList(page,query));}

3.2 service层

IPage<Component> queryList(IPage<Component> page, LambdaQueryWrapper<Component> queryWrapper);

3.3 service实现层

	@Overridepublic IPage<Component> queryList(IPage<Component> page, LambdaQueryWrapper<Component> queryWrapper) {return componentMapper.selectPage(page,queryWrapper);}

3.4 dao层

@Mapper
public interface ComponentMapper extends BaseMapper<Component> {}

4 yaml配置

server:#运行端口号port: 8090servlet:context-path: /homspring:
#  mvc:
#    pathmatch:
#      matching-strategy: ANT_PATH_MATCHER#数据源配置datasource:driver-class-name: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://localhost:3306/hom?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=Asia/Shanghaiusername: rootpassword: marlon#mybatis-plus配置
mybatis-plus:configuration:#sql日志打印log-impl: org.apache.ibatis.logging.stdout.StdOutImpl#开启驼峰命名匹配map-underscore-to-camel-case: true#mapper文件mapper-locations: classpath:mapper/**/*.xml,classpath:mapper/*.xml#数据库实体类的包全路径，方便在mapper.xml中不许使用实体类的全路径，写类名就行（不区分大小写）type-aliases-package: cn.com.marlon.hom.entityglobal-config:db-config:#逻辑删除logic-delete-value: 0logic-not-delete-value: 1logic-delete-field: deleted

5 postman测试