我有一个程序(Spring Boot),它使用REST服务将文件上传到服务器或任何其他给定位置。但是,当我使用相同的服务时,下面发生了错误,下面就是问题。
通过REST服务上传文件时,我收到400()错误而没有任何描述。这个应用程序是Spring启动应用程序,它使用java脚本前端通过已实现的休息服务上传和下载文件。
帮助解决此问题。感谢您的帮助。感谢。
下面是代码: JS:
document.getElementById('import2').onclick = function () {
var files = document.getElementById('selectFiles').files;
console.log(files);
if (files.length <= 0) {
return false;
}
//serverUploaded = true;
var form_data = new FormData(files.item(0));
//from new NLP
$.ajax({
type: "POST",
url: "http://localhost:8080/gsta/upload",
processData: false,
contentType: false,
async: false,
cache: false,
data: form_data,
success: function (result) {
//alert(JSON.stringify(result));
//$("#out_lexalytics").html(JSON.stringify(result));
if (result) {
if(result.statusCode == 200)
{
serverUploaded = true;
}
}
}
});
}
REST服务:
@PostMapping("/upload")
// If not @RestController, uncomment this
@ResponseBody
public ResponseEntity<?> uploadFile(@RequestParam("data") MultipartFile uploadfile) {
logger.debug("Single file upload!");
if (uploadfile != null && uploadfile.isEmpty()) {
return new ResponseEntity("please select a file!", HttpStatus.OK);
}
try {
saveUploadedFiles(Arrays.asList(uploadfile));
} catch (IOException e) {
e.printStackTrace();
return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
}
return new ResponseEntity("Successfully uploaded - " + uploadfile.getOriginalFilename(), new HttpHeaders(), HttpStatus.OK);
}
答案 0 :(得分:2)
服务器端有一个小改动(@RequestMapping(value =“/ upload”,method = RequestMethod.POST));
@RequestMapping(value = "/upload", method = RequestMethod.POST)
public ResponseEntity<?> uploadFile(@RequestParam("data") MultipartFile uploadfile) {
logger.debug("Single file upload!");
if (uploadfile != null && uploadfile.isEmpty()) {
return new ResponseEntity("please select a file!", HttpStatus.OK);
}
return new ResponseEntity("Successfully uploaded - " + uploadfile.getOriginalFilename(), new HttpHeaders(), HttpStatus.OK);
}
有效。
答案 1 :(得分:0)
我的假设:您的方法saveUploadedFiles
会抛出IOException。
当您收到400 Bad Request作为回复时,我认为您应该调试
} catch (IOException e) {
e.printStackTrace();
return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
}
阻止以找出导致IOException的原因。