通过RESTful CXF使用multipart / form-data [英] Consuming a multipart/form-data via RESTful CXF

问题描述

我一直在使用Apache服务器与Jackson一起使用和生成JSON文件的web服务。
但是，其中一个服务的方法应该能够从一个移动应用程序保存上传的图像，该应用程序向我的web服务发出多部分/表单数据POST请求，我不知道如何处理这种内容-type在我的上下文中。我们通常创建Request和Response对象来使用和生成JSON，但是，我担心这不适用于这种情况。

I've been working in a webservice that consumes and produces JSON files using Apache CXF in conjuction with Jackson.
However, one of the service's methods should be able to save an uploaded image from a mobile application that makes a multipart/form-data POST request to my webservice, and I don't know how to treat this kind of content-type within my context. We usually create "Request" and "Response" objects to consume and produce the JSON, however, I'm afraid this would not work for this case.

这是请求格式：

Content-type: multipart/form-data
"Description": text/plain
"Path": text/plain
"Image": image/jpeg

如何正确使用这种请求并保存图像服务器端？

How to correctly consume this kind of request and save the image server-side?

我设法使用以下方法消费multipart / form-data：

I managed to consume multipart/form-data by using this:

public returnType savePicture(
                @Multipart(value = "mode", type = "text/plain") String mode,
                @Multipart(value = "type", type = "text/plain") String type,
                @Multipart(value = "path", type = "text/plain") String path
                @Multipart(value = "image", type = "image/jpeg") Attachment image
            ) 
    {

但是，当尝试使用以下POST请求时：

However, when trying to consume the following POST request:

Content-type: multipart/form-data, boundary=AaB03x

--AaB03x
content-disposition: form-data; name="mode"

T
--AaB03x
content-disposition: form-data; name="type"

M
--AaB03x
content-disposition: form-data; name="path"

c:/img/
--AaB03x
content-disposition: form-data; name="image"; filename="image.jpg"
Content-Type: image/jpeg
Content-Transfer-Encoding: binary

imgdata
--AaB03x--

我收到以下错误：

javax.ws.rs.BadRequestException：org.apache.cxf.jaxrs.utils.multipart.MultipartReadException：找不到内容ID 类型的多部分，请求内容类型：multipart / form -data; boundary = AaB03x

javax.ws.rs.BadRequestException: org.apache.cxf.jaxrs.utils.multipart.MultipartReadException: No multipart with content id type found, request content type : multipart/form-data;boundary=AaB03x

例如，当我只使用模式时，它可以正常工作。它只会中断2个或更多参数。任何想法为什么是错的？

When I consume only mode, for instance, it works fine. It only breaks for 2 or more parameters. Any idea for why is that wrong?

推荐答案

看来我们发现了问题，它与请求的格式有关。正确的格式应该是：

It seems we found the problem, and it was related to the format of the request. The correct format should have been:

Content-type: multipart/form-data, boundary=AaB03x

--AaB03x
content-disposition: form-data; name="mode"

T--AaB03x

content-disposition: form-data; name="type"

M--AaB03x

content-disposition: form-data; name="path"

c:/img/--AaB03x

content-disposition: form-data; name="image"; filename="image.jpg"
Content-Type: image/jpeg
Content-Transfer-Encoding: binary

imgdata--AaB03x--

更改为此格式允许我使用其他参数。

Changing to this format allowed me to consume the other parameters.

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