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我上傳圖片我的職務的請求返回400如下:春季啓動GET請求圖像
@RequestMapping(method = RequestMethod.POST, value = BASE_PATH)
public ResponseEntity<?> createFile(@RequestParam("file") MultipartFile file, HttpServletRequest servletRequest){
URI localUri = null;
try{
imageService.createImage(file);
final URI localhostUri = new URI(servletRequest.getRequestURL().toString() + "/")
.resolve(file.getOriginalFilename() + "/raw");
localUri = localhostUri;
}catch (IOException e){
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
.body("Could not upload " + file.getOriginalFilename() + "=>" + e.getMessage());
}catch (URISyntaxException e) {
e.printStackTrace();
}
return ResponseEntity.created(localUri)
.body("Successfully Uploaded " + file.getOriginalFilename());
}
而且下面是一次讀取的圖像GET方法:
@RequestMapping(method = RequestMethod.GET, value = BASE_PATH + "/" + FILENAME + "/raw")
@ResponseBody
public ResponseEntity<?> oneRawImage(@PathVariable String filename){
try{
Resource file = imageService.findOneImage(filename);
return ResponseEntity.ok()
.contentLength(file.contentLength())
.contentType(MediaType.IMAGE_JPEG)
.body(new InputStreamResource(file.getInputStream()));
}catch (IOException e){
return ResponseEntity.badRequest()
.body("Couldn't Find" + filename + "=>" + e.getMessage());
}
}
當我做POST時,我得到了一個正確的響應,說明文件已上傳(我不確定它是否是,因爲返回請求已經超出了try塊。以下是我得到的響應:
* Trying ::1...
* Connected to localhost (::1) port 8080 (#0)
> POST /images HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.49.0
> Accept: */*
> Content-Length: 69927
> Expect: 100-continue
> Content-Type: multipart/form-data; boundary=------------------------
b5f1ef58e19bbb8d
>
< HTTP/1.1 100
< HTTP/1.1 201
< Location: http://localhost:8080/images/image2.jpg/raw
< Content-Type: text/plain;charset=UTF-8
< Content-Length: 32
< Date: Wed, 14 Jun 2017 18:24:06 GMT
<
* Connection #0 to host localhost left intact
Successfully Uploaded image2.jpg
但是當我嘗試做一個GET請求來獲取我張貼的形象,我收到以下錯誤:
Couldn't Findimage2.jpg=>ServletContext resource [/fileupload-dir/image2.jpg] cannot be resolved to URL because it does not exist
我試圖以多種方式調試,但沒有成功。任何來自斯普林格的幫助將不勝感激!謝謝
是'/ fileupload-dir /'映射是否正確?我無法從提供的代碼中看出 - 您的方法似乎已映射到'../ raw' – ochi
@ochi這很有趣,在findOneImage Service方法中,我實際上在resourceLoader.getResource(「file:」+ UPLOAD_ROOT +「/」+文件名)。我並不完全理解':'的用法,但那是問題所在。 – Omkar
您的問題標題是誤導...標題說,你得到一個404(資源未找到),但真的你得到一個400(壞請求) - 現在我們知道爲什麼... – ochi