2017-10-17 109 views
0
将文件上传到春天REST服务

我写了接受多文件作为参数小弹簧控制器无法通过RestTemplate

@PutMapping("/fileUpload") 
    public String test(@RequestParam("test") MultipartFile file) { 
     System.out.println("In controller"); 
     return file.getOriginalFilename(); 
    } 

,我使用相应的RestTemplate是

Path path = Paths.get("C:\\Users\\Foo\\Desktop", "baz.txt"); 

      FormHttpMessageConverter messageConverter = new FormHttpMessageConverter(); 
      messageConverter.addPartConverter(new ByteArrayHttpMessageConverter()); 

      RestTemplate client = new RestTemplate(); 
      client.getMessageConverters().add(messageConverter); 

      String end_url = "http://localhost:8888/test/fileUpload"; 

      HttpHeaders headers = new HttpHeaders(); 
      headers.setContentType(MediaType.MULTIPART_FORM_DATA); 

      MultiValueMap<String, Object> body = new LinkedMultiValueMap<String, Object>(); 

      body.add("test", new ByteArrayResource(Files.readAllBytes(path))); 

      HttpEntity<MultiValueMap<String, Object>> entity 
       = new HttpEntity<MultiValueMap<String, Object>>(body, headers); 

      client.exchange(end_url, HttpMethod.PUT, entity, String.class, new HashMap()); 

无论我尝试什么,都会收到以下错误:

Caused by: org.springframework.web.client.HttpClientErrorException: 400 null 
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91) ~[spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] 
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:700) ~[spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] 
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:653) ~[spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] 
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:621) ~[spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] 
    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:540) ~[spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] 
    at org.controller.Runner.run(Runner.java:57) [classes/:na] 
    at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:776) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE] 
    ... 6 common frames omitted 

我在做什么错了?我曾尝试添加所有典型的消息转换器,如ByteArrayHttpMessageConverter,ResourceHttpMessageConverter,我也尝试通过使用commons-fileupload

任何人都可以告诉我我在RestTemplate中做错了什么?

+0

你可以得到更全面的信息看服务器控制台。我认为'@ RequestPart'在这里更合适,而不是'@ RequestParam',因为它是一个文件。 – Vasan

+0

@Vasan没有'@ RequestParam'的作品 –

回答

0

你好吗? 尝试修改

@PutMapping("/fileUpload") 

@PutMapping(value = "/fileUpload", consumes = "multipart/form-data") 
+1

它没有它的工作 –