java 通过 RESTful CXF 使用多部分/表单数据
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Consuming a multipart/form-data via RESTful CXF
提问by fcm
I've been working in a webservice that consumes and produces JSON files using Apache CXF in conjuction with Hymanson.
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.
我一直在使用 Apache CXF 与 Hymanson 结合使用和生成 JSON 文件的 web 服务工作。
但是，该服务的一种方法应该能够保存来自移动应用程序的上传图像，该应用程序向我的 Web 服务发出多部分/表单数据 POST 请求，而我不知道如何在我的语境。我们通常会创建“请求”和“响应”对象来使用和生成 JSON，但是，恐怕这不适用于这种情况。
This is the Request format:
这是请求格式：
Content-type: multipart/form-data
"Description": text/plain
"Path": text/plain
"Image": image/jpeg
How to correctly consume this kind of request and save the image server-side?
如何正确消费这种请求并保存图像服务器端？
[EDIT]
[编辑]
I managed to consume multipart/form-data by using this:
我设法通过使用这个来使用 multipart/form-data：
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
)
{
However, when trying to consume the following POST request:
但是，当尝试使用以下 POST 请求时：
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--
I'm getting the following error:
我收到以下错误：
javax.ws.rs.BadRequestException: org.apache.cxf.jaxrs.utils.multipart.MultipartReadException: No multipart with content id typefound, request content type : multipart/form-data;boundary=AaB03x
javax.ws.rs.BadRequestException: org.apache.cxf.jaxrs.utils.multipart.MultipartReadException: 没有找到具有内容 ID类型的多部分，请求内容类型：multipart/form-data;boundary=AaB03x
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?
例如，当我只使用mode 时，它工作正常。它只会中断 2 个或更多参数。知道为什么这是错误的吗？
采纳答案by fcm
It seems we found the problem, and it was related to the format of the request. The correct format should have been:
好像找到问题了，和请求的格式有关。正确的格式应该是：
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--
Changing to this format allowed me to consume the other parameters.
更改为这种格式允许我使用其他参数。
回答by Chris
I faced similar issue sometime back.
我曾经遇到过类似的问题。
The following code did the trick for me
以下代码对我有用
@POST
@Consumes("multipart/form-data")
public void yourMethod(<params>) throws Exception {
}
In short, it is I think the @Consumesannotation you are missing.
简而言之，我认为@Consumes您缺少注释。
回答by Anup Deshpande
For consuming multipart form data. use @consumes tag & provide "multipart/form-data" along with value parameter like
用于使用多部分表单数据。使用@consumes 标签并提供“multipart/form-data”以及像这样的值参数
@Consumes(value = "multipart/form-data")
@Consumes(value = "multipart/form-data")
refer https://jnorthr.wordpress.com/2012/07/10/http-header-content-type-and-encodings/
参考 https://jnorthr.wordpress.com/2012/07/10/http-header-content-type-and-encodings/
