我使用 Spring Boot 并希望使用控制器来接收分段文件上传。
发送文件时我不断收到错误 415 不支持的内容类型响应并且从未到达控制器
There was an unexpected error (type=Unsupported Media Type, status=415).
Content type 'multipart/form-data;boundary=----WebKitFormBoundary1KvzQ1rt2V1BBbb8' not supported
我尝试过在 html/jsp 页面以及使用 RestTemplate 的独立客户端应用程序中使用 form:action 发送。所有尝试都会得到相同的结果
multipart/form-data;boundary=XXXXX not supported.
从多部分文档看来，必须将边界参数添加到多部分上传中，但这似乎与接收的控制器不匹配"multipart/form-data"
我的控制器方法设置如下
@RequestMapping(value = "/things", method = RequestMethod.POST, consumes = "multipart/form-data" ,
produces = { "application/json", "application/xml" })
public ResponseEntity<ThingRepresentation> submitThing(HttpServletRequest request,
@PathVariable("domain") String domainParam,
@RequestParam(value = "type") String thingTypeParam,
@RequestBody MultipartFile[] submissions) throws Exception
使用 Bean 设置
@Bean
public MultipartConfigElement multipartConfigElement() {
return new MultipartConfigElement("");
}
@Bean
public MultipartResolver multipartResolver() {
org.springframework.web.multipart.commons.CommonsMultipartResolver multipartResolver = new org.springframework.web.multipart.commons.CommonsMultipartResolver();
multipartResolver.setMaxUploadSize(1000000);
return multipartResolver;
}
正如您所看到的，我已将消耗类型设置为“multipart/form-data”，但是当发送多部分时，它必须具有边界参数并放置随机边界字符串。
谁能告诉我如何设置控制器中的内容类型以匹配或更改我的请求以匹配我的控制器设置？
我尝试发送...
尝试1...
<html lang="en">
<body>
<br>
<h2>Upload New File to this Bucket</h2>
<form action="http://localhost:8280/appname/domains/abc/things?type=abcdef00-1111-4b38-8026-315b13dc8706" method="post" enctype="multipart/form-data">
<table width="60%" border="1" cellspacing="0">
<tr>
<td width="35%"><strong>File to upload</strong></td>
<td width="65%"><input type="file" name="file" /></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="submit" value="Add" /></td>
</tr>
</table>
</form>
</body>
</html>
尝试2....
RestTemplate template = new RestTemplate();
MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>();
parts.add("file", new FileSystemResource(pathToFile));
try{
URI response = template.postForLocation(url, parts);
}catch(HttpClientErrorException e){
System.out.println(e.getResponseBodyAsString());
}
尝试3...
FormHttpMessageConverter formHttpMessageConverter = new FormHttpMessageConverter();
formHttpMessageConverter.setCharset(Charset.forName("UTF8"));
RestTemplate restTemplate = new RestTemplate();
restTemplate.getMessageConverters().add( formHttpMessageConverter );
restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory());
MultiValueMap<String, Object> map = new LinkedMultiValueMap<String, Object>();
map.add("file", new FileSystemResource(path));
HttpHeaders imageHeaders = new HttpHeaders();
imageHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);
HttpEntity<MultiValueMap<String, Object>> imageEntity = new HttpEntity<MultiValueMap<String, Object>>(map, imageHeaders);
ResponseEntity e= restTemplate.exchange(uri, HttpMethod.POST, imageEntity, Boolean.class);
System.out.println(e.toString());
