从提供的网址/store/{storeId}/customers/{customerId}/accounts/{accountId}中， 显然store has customers和那些customers have accounts。

以下方法包括额外的数据库调用，用于按ID验证商店和按ID验证顾客，但这将是适当的方法，因为如果我们在STORE和CUSTOMER表上使用带有联接的查询，那么您可能无法准确判断给定的storeId或customerId不正确/不在数据库中。

如果您逐步进行操作，则可以显示相应的错误消息，

如果storeId不正确-There exists no store with given storeId: XYZ 如果customerId不正确-There exists no customer with customerID: XYZ

由于您提到您正在使用Spring Boot，因此您的代码应如下所示：

@RequestMapping(value = "/store/{storeId}/customers/{customerId}/accounts",method = RequestMethod.POST)
public ResponseEntity<Account> persistAccount(@RequestBody Account account,@PathVariable("storeId") Integer storeId,@PathVariable("customerId") Integer customerId) {

    // Assuming you have some service class @Autowired that will query store by ID.
    // Assuming you have classes like Store,Customer,Account defined
    Store store = service.getStoreById(storeId);
    if(store==null){
        //Throw your exception / Use some Exception handling mechanism like @ExceptionHandler etc.
        //Along with proper Http Status code.
        //Message will be something like: *There exists no store with given storeId: XYZ*
    }
    Customer customer = service.getAccountById(storeId,customerId);
    if(customer==null){
        //Throw your exception with proper message.
        //Message will be something like: *There exists no store with given customerID: XYZ*
    }
    // Assuming you already have some code to save account info in database.
    // for convenience I am naming it as saveAccountAgainstStoreAndCustomer
    Account account = service.saveAccountAgainstStoreAndCustomer(storeId,customerId,account);
    ResponseEntity<Account> responseEntity = new ResponseEntity<Account>(account,HttpStatus.CREATED);        
}

以上代码段只是代码外观的骨架，通过遵循一些良好的编码惯例，您可以以比上面给出的更好的方式来对其进行结构化。

希望对您有帮助。