springboot基本项目结构和常用的注解简单使用方法

@SpringBootApplication// 将此类标记为程序启动类，程序将从此进入启动publicclassAiApplication {
publicstaticvoidmain(String[] args) {
SpringApplication.run(AiApplication.class, args);
    }
}

@Configuration// 将此文件标记为配置类，跟随程序启动加载@MapperScan({"com.cheng.ai.mapper"}) // 后面mybatis一起讲publicclassMybatisConfig {
}

@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented@Controller@ResponseBodypublic@interfaceRestController {
@AliasFor(
annotation=Controller.class    )
Stringvalue() default"";
}

@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documentedpublic@interfaceResponseBody {
}

@Service// 在实现类注入publicclassAiLogServiceImplextendsServiceImpl<AiLogMapper, AiLog>implementsAiLogService {
}

@RestController@RequestMapping("/aiLog")
publicclassAiLogController {
@AutowiredprivateAiLogServiceaiLogService; // 装配@GetMapping("test")
publicCommonResultgetlist(){
List<AiLog>list=aiLogService.list();
returnCommonResult.success(list);
    }
}

@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented@Mappingpublic@interfaceRequestMapping {
    ......
}

@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented@RequestMapping(
method= {RequestMethod.POST}
)
public@interfacePostMapping{
    ......
}

@Target({ElementType.METHOD, ElementType.ANNOTATION_TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documentedpublic@interfaceBean {
    ......
}

@Configuration@EnableSwagger2WebMvcpublicclassSwaggerConfig {
// 创建Docket存入容器，Docket代表一个接口文档@BeanpublicDocketwebApiConfig(){
returnnewDocket(DocumentationType.SWAGGER_2)
// 创建接口文档的具体信息                .apiInfo(webApiInfo())
// 创建选择器，控制哪些接口被加入文档                .select()
// 指定@ApiOperation标注的接口被加入文档                .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                .build();
    }
}

@GetMapping("/list/{pageNum}/{pageSize}")
publicCommonResult<List<Brand>>getList(@PathVariable("pageNum") intpageNum,
@PathVariable("pageSize") intpageSize){
        ......
    }