使用Java Spring在AWS S3上上传二进制文件

Question

我可以使用下面的表格数据上传文件

但是当我尝试通过选择二进制作为输入来上传文件时，出现以下错误;

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

为此，我正在编写代码

@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);
}

这对于上载表单数据很好，但是对于二进制选择则不起作用。 我们如何解决这个问题？

Answer 1

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

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