页面多查询条件必选的统一处理思路

/**
 * 用来标识某个参数和某个类的切入点
 * @author zhouli
 * @Classname ConditionLimitAspect
 * @Date 2022/4/6 19:39
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.PARAMETER, ElementType.METHOD})
public @interface ConditionLimit {
    /**
     * 限制条件最少个数
     *
     * @return
     */
    int conditionNumberLimit() default 1;
}

/**
 * 用来标识哪些字段用来统计查询列
 * @author zhouli
 * @Classname ConditionLimitAspect
 * @Date 2022/4/6 19:39
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface ConditionField {
}

@Slf4j
@Aspect
@Component
public class ConditionLimitAspect {
    @Around("execution(* com.p4.tp.system.modules.*.rest.*.*(..,@com.p4.tp.system.config.aop.ConditionLimit (*),..))")
    public Object doCheckCondition(ProceedingJoinPoint point) throws Throwable {
        MethodSignature signature = (MethodSignature) point.getSignature();
        Method method = signature.getMethod();
        Parameter[] parameters = method.getParameters();
        for (int i = 0; i < parameters.length; i++) {
            //多个参数时循环
            ConditionLimit annotation = parameters[i].getAnnotation(ConditionLimit.class);
            if (annotation == null) {
                continue;
            }
            //设定的最小查询列数量
            int numberLimit = annotation.conditionNumberLimit();
            Object[] args = point.getArgs();
            Class<?> aClass =args[i].getClass();
            Field[] declaredFields = aClass.getDeclaredFields();
            //查询条件计数
            int realNum = 0;
            for (Field field : declaredFields) {
                //获取带ConditionField注解的字段
                ConditionField conditionField = field.getAnnotation(ConditionField.class);
                if (conditionField == null) {
                    continue;
                }
                field.setAccessible(true);
                //获取列值
                Object value = field.get(args[i]);
                if (value == null) {
                    continue;
                }
                try {
                    //列举三种情况
                    if (value instanceof String && StringUtils.isNotBlank((String) value)) {
                        realNum++;
                    } else if (value instanceof Collection && !CollectionUtils.isEmpty((Collection<?>) value)) {
                            realNum++;
                    } else if (value instanceof Date) {
                            realNum++;
                    }
                } catch (Exception e) {
                    log.error("条件限定异常，", e);
                }
            }
            if (realNum < numberLimit) {
                log.info("查询条件不足，请至少选择或输入" + numberLimit + "个查询条件");
                throw new BusinessException("查询条件不足，请至少选择或输入" + numberLimit + "个查询条件");
            }
        }
        return point.proceed();
    }
}

@Data
public class FlowCardInfoParam {

    @ConditionField
    private String iccId;

    @ConditionField
    private String termSn;

    @ConditionField
    private String imei;
}

	@PostMapping("/getPage")
    public ResponseEntity<Object> getPage(@RequestBody @ConditionLimit FlowCardInfoParam param) {
        return new ResponseEntity<>(null, HttpStatus.OK);
    }