带有Spring的REST多部分混合请求(file + json) [英] REST multipart mixed request (file+json) with Spring

问题描述

我需要将文件和json一起发送到我的Spring Controller.我有以下控制器类:

I need to send a file alongside with a json to my Spring Controller. I have the following controller class:

@Controller
@RequestMapping("/perform")
public class PerformController {

    ...

    @RequestMapping(path = "gopdf", method = RequestMethod.POST, consumes = { "multipart/mixed" })
    @ResponseStatus(HttpStatus.CREATED)
    public void handleFileUpload(@RequestPart("file") MultipartFile file, @RequestPart("map") String map,   HttpServletResponse response) throws Exception {
        ...
    }

}

但是当我使用以下命令在服务器上卷曲时:

But when I curl on my server with the following command :

 curl -H "Content-Type: multipart/form-data" -F "map=@map.json; type=application/json" -F "content=@SMP.docx" -X POST localhost:9000/perform/gopdf-i -v

我得到415种不受支持的媒体类型！

I get 415 unsupported Media Type !

有任何线索吗?

推荐答案

其他答案中的消耗对象对我没有帮助.关键是将我想支持的特定multipart/*类型添加到RequestMapping中的某些标头上.真的很难弄清楚，主要是猜测工作并盯着Spring源代码. Spring对此的支持让我有点不知所措，但是我设法使其在我们的Spring Boot App中起作用，但仅在To​​mcat上有效?！?当您将Boot应用程序配置为使用Jetty时，称为MultipartResolver的东西就会阻塞.但是我离题了...

The consumes thing in the other answers didn't do crap for me. The key was getting the specific multipart/* types I wanted to support onto some headers key in the RequestMapping. It was really difficult to figure out, mostly guess work and stare at the Spring source code. I'm kind-of underwhelmed with Spring's support for this, but I have managed to make it work in our Spring Boot App, but only with Tomcat?!? Something called the MultipartResolver chokes when you configure your Boot application to use Jetty...so long Jetty. But I digress...

在我的控制器中，我设置了多段/混合或多段/形式数据，例如...

In my Controller I set up for multipart/mixed or multipart/form-data like...

@RequestMapping(value = "/user/{userId}/scouting_activities", method = RequestMethod.POST,
        headers = {"content-type=multipart/mixed","content-type=multipart/form-data"})
public ResponseEntity<String> POST_v1_scouting_activities(
        @RequestHeader HttpHeaders headers,
        @PathVariable String userId,
        @RequestPart(value = "image", required = false) MultipartFile image,
        @RequestPart(value = "scouting_activity", required = true) String scouting_activity_json) {
  LOG.info("POST_v1_scouting_activities: headers.getContentType(): {}", headers.getContentType());
  LOG.info("POST_v1_scouting_activities: userId: {}", userId);
  LOG.info("POST_v1_scouting_activities: image.originalFilename: {}, image: {}",
          (image!=null) ? image.getOriginalFilename() : null, image);
  LOG.info("POST_v1_scouting_activities: scouting_activity_json.getType().getName(): {}, scouting_activity: {}",
          scouting_activity_json.getClass().getName(), scouting_activity_json);
  return new ResponseEntity<String>("POST_v1_scouting_activities\n", HttpStatus.OK);
}

标头可以让它唯一地标识愿意拍摄的多部分内容类型.这让卷发像...

That headers thing let it uniquely identify the multipart content types it was willing to take a shot at. This lets curls like...

curl -i -X POST 'http://localhost:8080/robert/v1/140218/scouting_activities' \
-H 'Content-type:multipart/mixed' \
-F 'image=@Smile_128x128.png;type=image/png' \
-F 'scouting_activity={
  "field": 14006513,
  "longitude": -93.2038253,
  "latitude": 38.5203231,
  "note": "This is the center of Dino Head.",
  "scouting_date": "2017-01-19T22:56:04.836Z"
};type=application/json'

...或...

curl -i -X POST 'http://localhost:8080/robert/v1/140218/scouting_activities' \
-H 'Content-type:multipart/form-data' \
-F 'image=@Smile_128x128.png;type=image/png' \
-F 'scouting_activity=@scoutingFrackingCurl.json;type=application/json'

工作.

这篇关于带有Spring的REST多部分混合请求(file + json)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！