文件上传 附件为空的时候 SDK 会将content-type设置为application/x-www-form-urlencoded

[fanjiwang1992]

当服务端为外置tomcat的时候报 org.apache.tomcat.util.http.fileupload.impl.InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is application/x-www-form-urlencoded

[fanjiwang1992]

涉及的类org.apache.servicecomb.common.rest.codec.param.RestClientRequestImpl
走读源码发现:
当formMap != null 时候,

当文件上传的附件为空的时候,不走doEndWithUpload()方法

[liubao68]

是什么现象？ #2400 这个问题吗？

[fanjiwang1992]

提供端接口定义:
@PostMapping(path = "/upload", consumes = MediaType.MULTIPART_FORM_DATA)
public String fileUpload(@RequestPart MultipartFile file, @RequestPart(value = "name", required = true) String name) {
System.out.println(name);
return "Upload success ...";
消费端 调用逻辑:
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
params.put("name", "fjw");
HttpEntity<Map<String, Object>> entity = new HttpEntity<>(params, headers);
String url = "cse://gray-svc/rest/file/upload?name=fjw";
String forObject = restTemplate.postForObject(url, entity, String.class);