[英]Spring Boot multipart content type HTTP Request using RestTemplate
我正在嘗試在Spring Boot中使用RestTemplate模擬此請求
curl -X POST
'https://my.craftar.net/api/v0/image/?api_key=123456789abcdefghijk123456789abcdefghijk'
-F "item=/api/v0/item/4fe672886ec142f6ab6d72d54acf046f/"
-F "file=@back_cover.png"
這是我的代碼:
MultiValueMap<String, Object> params= new LinkedMultiValueMap<>();
params.add("item", "/api/v0/item/4fe672886ec142f6ab6d72d54acf046f/");
final String filename=file.getOriginalFilename();
Resource contentsAsResource = new ByteArrayResource(file.getBytes()){
@Override
public String getFilename(){
return filename;
}
};
HttpHeaders imageHeaders = new HttpHeaders();
imageHeaders.setContentType(MediaType.IMAGE_PNG);
HttpEntity<Resource> imageEntity = new HttpEntity<Resource>(contentsAsResource, imageHeaders);
params.add("file", imageEntity);
HttpHeaders headers = new HttpHeaders();
headers.setAccept(Collections.singletonList(MediaType.ALL));
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
HttpEntity<MultiValueMap<String,Object>> requestEntity =new HttpEntity<>(params,headers);
try {
ResponseEntity<String> responseEntity = restTemplate.exchange(url,HttpMethod.POST, requestEntity, String.class);
return responseEntity.getBody();
} catch (final HttpClientErrorException httpClientErrorException) {
return httpClientErrorException.getResponseBodyAsString();
} catch (Exception exception) {
return exception.getMessage();
}
上面的請求拋出HttpClientErrorException,這是響應主體的樣子
{“錯誤”:{“消息”:“期望的多部分/表單數據;邊界= <..>內容,但得到了多部分/表單數據;邊界= x6G0xWVxdZX4n8pYNU8ihGAnCg4Twj3DgMARYDs。”,“代碼”:“ WRONG_CONTENT_TYPE”}}
我也嘗試過使用FileSystemResource,但是會引發相同的異常。 問題可能在於以多部分內容類型格式化數據。
如果可以幫助,這是Postman使用Okhttp成功請求后生成的代碼模板。
OkHttpClient client = new OkHttpClient();
MediaType mediaType = MediaType.parse("multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW");
RequestBody body = RequestBody.create(mediaType,
"------WebKitFormBoundary7MA4YWxkTrZu0gW\r\n
Content-Disposition: form-data; name=\"item\"\r\n\r\n/api/v0/item/3d8dcdd1daa54bcfafd8d1c6a58249b5/\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW\r\n
Content-Disposition: form-data; name=\"file\"; filename=\"times_logo.png\"\r\nContent-Type: image/png\r\n\r\n\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW--");
Request request = new Request.Builder()
.url("https://my.craftar.net/api/v0/image/?api_key=c6d4750c7368806fab27294fba8d0f93d48e1e11")
.post(body)
.addHeader("content-type", "multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW")
.addHeader("cache-control", "no-cache")
.addHeader("Postman-Token", "cf09a989-338e-4d68-8968-b30a43384e5f")
.build();
Response response = client.newCall(request).execute();
只需將Resource添加到params中,而不是創建HttpEntity
params.add("file", contentsAsResource);
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.