spring-自定义AOP面向切面注解--统一切面处理-登陆信息采集

骑猪看日落 2023-10-14 18:04 7阅读 0赞

[2023华为OD统一考试（A+B卷）题库清单-带答案（持续更新）][2023_OD_A_B_-]or[2023年华为OD真题机考题库大全-带答案（持续更新）][2023_OD_-]

> 1. 先写一个登陆记录注解（//记录：XXX时间，XXX姓名，XX系统，登录成功）

@Target(ElementType.METHOD) //作用用方法上
    @Retention(RetentionPolicy.RUNTIME)//在运行时可用
    public @interface LoginRecords {
        String value();
    }

> 2. 写一个切面对注解进行处理（业务逻辑处理，记录登陆的信息）

@Aspect
    @Component
    public class logLoginInfo {
    
        //针对LoginRecords注解
        @Pointcut("@annotation(com.example.jobtest.aspect.annotion.LoginRecords) && execution(* *(..))")
        public void loginRecordsPointcut() {
        }
    
    
        @Around("loginRecordsPointcut()")
        public void logLoginInfo(ProceedingJoinPoint joinPoint){
            try {
                //登陆人信息
                LoginInfo info = (LoginInfo) joinPoint.getArgs()[0];
                //先获取登陆结果信息,走完登录流程
                ResultVo resultVo = (ResultVo) joinPoint.proceed();
                String nowTime = nowTime("yyyy-MM-dd HH:mm:ss");
                //记录：XXX时间，XXX姓名，XX系统，登录成功
                MethodSignature signature = (MethodSignature) joinPoint.getSignature();
                Method method = signature.getMethod();
                LoginRecords annotation = method.getAnnotation(LoginRecords.class);
                String systemType = annotation.value();
                //业务处理，插入记录表中
                //{........}
                System.out.println(nowTime + ":" + info.getName()+"在" + systemType +"系统" + resultVo.getData().toString());
            } catch (Throwable e) {
                throw new RuntimeException(e);
            }
        }
    
        public String nowTime(String regex){
            LocalDateTime now = LocalDateTime.now();
            DateTimeFormatter formatter = DateTimeFormatter.ofPattern(regex);
            String nowTime = now.format(formatter);
            return nowTime;
        }
    
    }

> 3.写一个登录的控制类，这里有asystemlogin跟bsystemlogin 用来区分注解的参数

@RestController
    public class Login {
        @PostMapping("/asystemlogin")
        @LoginRecords("asystemlogin")
        public ResultVo checkAsystemlogin(@RequestBody LoginInfo loginInfo){
            ResultVo resultVo;
            if (loginInfo.getName().equals("axiaoyi") && loginInfo.getPwd().equals("aini")){
                resultVo = ResultVo.builder()
                        .code("200")
                        .data("登陆成功")
                        .build();
            }else {
                resultVo = ResultVo.builder()
                        .code("500")
                        .data("登陆失败")
                        .build();
            }
            return resultVo;
        }
    
        @PostMapping("/bsystemlogin")
        @LoginRecords("bsystemlogin")
        public ResultVo checkBsystemlogin(@RequestBody LoginInfo loginInfo){
            ResultVo resultVo;
            if (loginInfo.getName().equals("bxiaoyi") && loginInfo.getPwd().equals("aini")){
                resultVo = ResultVo.builder()
                        .code("200")
                        .data("登陆成功")
                        .build();
            }else {
                resultVo = ResultVo.builder()
                        .code("500")
                        .data("登陆失败")
                        .build();
            }
            return resultVo;
        }
    }

> 4. 查看返回结果

![3d9135648d7141beab70113a1bf8cc66.png][]

![6e5ff2ea9b014fc69937ee14155cda93.png][]

![7c5ce79ed6d640ad9118ad1e7a8e8f33.png][]

![78945f1b7f14440c8859f0f2879d6353.png][]

[2023_OD_A_B_-]: https://blog.csdn.net/weixin_42450130/article/details/131750502
[2023_OD_-]: https://blog.csdn.net/weixin_42450130/article/details/131719081
[3d9135648d7141beab70113a1bf8cc66.png]: https://img-blog.csdnimg.cn/3d9135648d7141beab70113a1bf8cc66.png
[6e5ff2ea9b014fc69937ee14155cda93.png]: https://img-blog.csdnimg.cn/6e5ff2ea9b014fc69937ee14155cda93.png
[7c5ce79ed6d640ad9118ad1e7a8e8f33.png]: https://img-blog.csdnimg.cn/7c5ce79ed6d640ad9118ad1e7a8e8f33.png
[78945f1b7f14440c8859f0f2879d6353.png]: https://img-blog.csdnimg.cn/78945f1b7f14440c8859f0f2879d6353.png