带有文件输入流和 json 正文的 web 服务? [英] webservice with a file inputstream and a json body?

问题描述

我想用 cxf 实现一个网络服务来上传一个文件，其中包含一些关于它的信息.

I would like to implement a webservice with cxf to upload a file with some informations about it contained in the body.

我已经完成但还没有工作的:

What I've done but didn't work yet :

 @POST
 @Path("/")
 @Consumes(MediaType.MULTIPART_FORM_DATA)
 User addDocument(
     @Multipart(value="metadata", type="application/json") DocMeta metadata,
     @Multipart(value="inputstream", type="multipart/form-data") InputStream inputStream)
     throws ObjectAlreadyExistsException;

当我尝试使用 curl 请求我的服务时，它不起作用:

When I try to request my service with curl it doesn't work :

curl  http://localhost:9090/... 
      --X POST  
      -H"Content-Type:multipart/form-data" 
      -F inputstream=@myFile.txt 
      -d'{"info1":"info1","info2":"info2"}'

是否真的可以同时拥有多部分数据和带有 cxf 的 json 主体??

Is it really possible to have both multipart data and a json body with cxf ??

提前致谢

马努

推荐答案

是的，这是可能的.但问题在于您的 cURL 请求.您应该将所有部分添加为 --form/-F.您正在尝试将 JSON 作为普通正文发送.试图让 cURL 出错，它甚至不会发出请求.您还需要为每个部分设置 Content-Type.例如

Yes it's possible. But the problem is with your cURL request. You should add all parts as --form/-F. You are trying to send the JSON as a normal body. Attempting that I would get an error with cURL, it wouldn't even send out the request. Also you need to set the Content-Type for each part. For example

C:>curl -v -H "Content-Type:multipart/form-data" 
            -H "Accept:application/json" 
            -F "stream=@android.png;type=application/octet-stream" 
            -F "person={"name":"peeskillet"};type=application/json"
            -X POST http://localhost:8080/rest/multipart`

(当然都在一行上).这是我用来测试的资源方法.

(All on one line of course). Here's the resource method I used to test.

public static class Person {
    public String name;
}

@POST
@Produces(MediaType.APPLICATION_JSON)
public Response postMultiPart(
    @Multipart(value="stream", type="application/octet-stream") InputStream img,
    @Multipart(value="person", type="application/json") Person person) throws Exception {

    Image image = ImageIO.read(img);
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(300, 300);
    frame.add(new JLabel(new ImageIcon(image)));
    frame.setVisible(true);

    return Response.ok(person).build();
}

这是我作为文件发送的图像.

It was an image that I sent as a file.

或者，您可以获得一个附件，这将为您提供有关文件的更多信息.

Alternatively, you can get an Attachment, which will give you more info on the file.

public Response postMultiPart(
    @Multipart(value="stream") Attachment img,
    @Multipart(value="person", type="application/json") Person person) throws Exception {

    Image image = ImageIO.read(img.getObject(InputStream.class));

• 有关 CXF 支持的更多信息，请参阅多部分支持

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