使用Java Spring在AWS S3上上傳二進制文件

Question

我可以使用下面的表格數據上傳文件

但是當我嘗試通過選擇二進制作為輸入來上傳文件時，出現以下錯誤;

{"timestamp":1490680735011,"status":500,"error":"Internal Server Error","exception":"org.springframework.web.multipart.MultipartException","message":"Current request is not a multipart request","path":"/uploadBinary"}

為此，我正在編寫代碼

@RequestMapping(value = "/uploadBinary", method = RequestMethod.POST)
public ResponseEntity<Object> uploadBinary(
        @RequestParam("file") MultipartFile[] multipartFiles) {
    try {
        System.out.println("starting....");
        fileService.upload(multipartFiles);
        System.out.println("uploaded successfully ");
    } catch (Exception ex) {
        System.out.println(ex.getMessage());
        return new ResponseEntity<Object>(new String(
                "Something Went wrong while uploading data to server"),
                HttpStatus.OK);
    }
    return new ResponseEntity<Object>(new String("uploaded successfully "),
            HttpStatus.OK);
}

這對於上載表單數據很好，但是對於二進制選擇則不起作用。 我們如何解決這個問題？

Answer 1

檢查是否在spring配置文件中添加了CommonsMultipartResolver

<bean id="multipartResolver"  class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>