如何在Spring restful服务中处理由文件和JSON对象组成的多部分请求？ [英] How to process a multipart request consisting of a file and a JSON object in Spring restful service?

问题描述

我有以下资源（使用Spring 4.05.RELEASE实现），它接受一个文件和一个JSON对象：

I have the following resource (implemented using Spring 4.05.RELEASE) which accepts a file and a JSON object:

（PS activityTemplate是一个可序列化的实体类）

(P.S. activityTemplate is a serializable entity class)

...
@RequestMapping(value="/create", method=RequestMethod.POST)
public @ResponseBody ActivityTemplate createActivityTemplate(
        @RequestPart ActivityTemplate activityTemplate, @RequestPart MultipartFile jarFile)
{
   //process the file and JSON
}
...

这是我正在测试的表格：

and this is the form I am testing from:

<form method="POST" enctype="multipart/form-data"
    action="http://localhost:8080/activityTemplates/create">
    JSON: <input type="text" name="activityTemplate" value='/* the JSON object*/'><br />

    File to upload: <input type="file" name="file">
    <input type="submit" value="Upload">
</form>

这是我得到的错误：

 There was an unexpected error (type=Unsupported Media Type, status=415).
 Content type 'application/octet-stream' not supported

那么我该如何制作资源接受JSON对象作为multipart请求的一部分，或者我应该以不同的方式发送表单？

So how should I make the resource accept the JSON object as part of the multipart request, or should I be sending the form in a different way?

推荐答案

这我花了两天时间为我工作！

This took me two days to work for me!

客户（角度）：

$scope.saveForm = function () {
      var formData = new FormData();
      var file = $scope.myFile;
      var json = $scope.myJson;
      formData.append("file", file);
      formData.append("ad",JSON.stringify(json));//important: convert to string JSON!
      var req = {
        url: '/upload',
        method: 'POST',
        headers: {'Content-Type': undefined},
        data: formData,
        transformRequest: function (data, headersGetterFunction) {
          return data;
        }
      };

春天（开机）：

@RequestMapping(value = "/upload", method = RequestMethod.POST)
    public @ResponseBody
    Advertisement storeAd(@RequestPart("ad") String adString, @RequestPart("file") MultipartFile file) throws IOException {

        Advertisement jsonAd = new ObjectMapper().readValue(adString, Advertisement.class);
//do whatever you want with your file and jsonAd

这篇关于如何在Spring restful服务中处理由文件和JSON对象组成的多部分请求？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！