Scenario: this error occurs when transferring parameters between springcloud and seat microservices. A service has the function of uploading files,
Service B needs to call the upload file interface of service A. there is a common parent class reference C between a and B.
The method defined in C is
| @RequestMapping(“/file/upload”) public R uploadFile(MultipartFile file); |
The method defined in a is
| @RequestMapping(“/file/upload”) public R uploadFile(MultipartFile file){ … } |
Call statements defined in B
| b.uploadFile(file); |
After writing in this way, report an error, such as the title
Add the annotation @ requestparam before the request parameter file in methods a and C.