Struggle to upload file via REST

Question

If have some struggle to upload a file via REST in a SpringBoot Application. For testing the REST interface I use Insomnia or sometimes Curl. In Insomnia I have configured that I'm using a call as a POST. Further I attached a simple .txt file with a name and some content which is only "test". As a header I use Content-Type = multipart/form-data.

When I fire the REST call I get following error message inside the REST Client:

{
  "timestamp": "2019-04-04T08:51:19.743+0000",
  "status": 500,
  "error": "Internal Server Error",
  "message": "Failed to parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadException: the request was rejected because no multipart boundary was found",
  "path": "/upload/upload_file"
}

My RestController looks like this:

@RestController
@RequestMapping("/upload")
public class FileUploadController {

    ...

    @PostMapping("/upload_file")
    public String upload(@RequestParam("file") MultipartFile file) {
        return "test";
    }

After sending the REST call the server shows following error message:

org.apache.commons.fileupload.FileUploadException: the request was rejected because no multipart boundary was found
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:990) ~[commons-fileupload-1.3.jar:1.3]
at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:310) ~[commons-fileupload-1.3.jar:1.3]
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:334) ~[commons-fileupload-1.3.jar:1.3]
at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:115) ~[commons-fileupload-1.3.jar:1.3]
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:158) ~[spring-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:142) ~[spring-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1175) ~[spring-webmvc-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1010) ~[spring-webmvc-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) ~[spring-webmvc-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) ~[spring-webmvc-5.1.5.RELEASE.jar:5.1.5.RELEASE]

score 1 · Answer 1 · answered Apr 04 '19 at 09:26

1

you are getting this exception because you have not specified the limit of multiform data in your application.So, you have to specify the limit.

Just add following line in your "application.properties" file or "application.yml" file.

spring.http.multipart.max-file-size=20MB

Enjoy coding..

answered Apr 04 '19 at 09:26

ASK

1,136
1
10
14

1

Thank your for your help, but this solution does not work for me. – Robert Apr 04 '19 at 10:43
@Robert If it doesn't work for you, why did you accept the answer? – Mark Rotteveel Apr 05 '19 at 11:32
@ASK sorry, I thought, that would kind of close the thread. – Robert Apr 16 '19 at 07:11

score 0 · Accepted Answer · answered Apr 04 '19 at 13:07

0

I used a different approach instead of using MultipartFile. Now I use as a parameter of my REST interface a simple byte array. See below:

@PostMapping("/
public String upload3(@RequestBody byte[] catalogFile) {
    return "success";
}

answered Apr 04 '19 at 13:07

Robert

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Struggle to upload file via REST

2 Answers2