尝试使用多部分文件测试rest服务 [英] Attempting to test rest service with multipart file

问题描述

我正在尝试测试我创建的休息服务.该服务是一个帖子.

I am attempting to test a rest service I created. The service is a post.

1. 我想创建一个文件来传递参数(包括一个多部分文件).
2. 目前我正在尝试从那里致电服务.

请确保该服务无法正常工作.但是当我打电话给休息服务时.我有一个简单的表单，只传递了几个值，包括jpg.

Pretty sure the service that doesn't work. But when I call rest Service. I have a simple form that just passes in a couple values including the jpg.

这是代码.

HttpMessageConverter bufferedIamageHttpMessageConverter =   new ByteArrayHttpMessageConverter();
restTemplate.postForObject("http://localhost:8080/sendScreeenAsPostCard",  uploadItem.getFileData(),  String.class));

我的方法签名是:

ResultStatus sendScreenAsPostcard( @RequestParam MultipartFile image, @RequestParamString userId) 

那是我得到的错误.

Could not write request: no suitable HttpMessageConverter found for request type [org.springframework.web.multipart.commons.CommonsMultipartFile]

推荐答案

您需要模拟文件上传，这需要特定的内容类型标头，正文参数等.

You need to simulate a file upload, which requires a particular content type header, body parameters, etc. Something like this should do the trick:

// Fill out the "form"...
MultiValueMap<String, Object> parameters = new LinkedMultiValueMap<String, Object>();
parameters.add("file", new FileSystemResource("file.jpg")); // load file into parameter
parameters.add("blah", blah); // some other form field

// Set the headers...
HttpHeaders headers = new HttpHeaders();
headers.set("Content-Type", "multipart/form-data"); // we are sending a form
headers.set("Accept", "text/plain"); // looks like you want a string back

// Fire!
String result = restTemplate.exchange(
    "http://localhost:8080/sendScreeenAsPostCard",
    HttpMethod.POST,
    new HttpEntity<MultiValueMap<String, Object>>(parameters, headers),
    String.class
).getBody();

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