泽西岛2分段上传客户端 [英] Jersey 2 Multipart upload Client

问题描述

我想写一个简单的球衣2客户端来上传一个文件。我使用的是泽西岛2.10.1并且写下面的服务器代码：

$ $ p $ $ b $ @POST
@Consumes（MediaType.MULTIPART_FORM_DATA ）
@Produces（MediaType.APPLICATION_JSON）
public Response uploadFile（
@FormDataParam（file）InputStream aUploadedInputStream，
@FormDataParam（file）FormDataContentDisposition aFileDetail）{

UploadedFile uploadedFile = new UploadedFile（）;
uploadedFile.setOriginalFileName（aFileDetail.getFileName（））;
uploadedFile.setFileSize（aFileDetail.getSize（））;
saveToFile（aUploadedInputStream，aFileDetail.getType（），uploadedFile）;
databaseHelper.saveInDatabase（uploadedFile）;

return Response.status（200）.build（）;

（UploadedFile是一个自定义类，用于保存文件的信息一个数据库）

这是我的客户端代码：

  private static final String TARGET_URL =http：// localhost：49158 / rest / service / upload; 
 $ b公共Slimclient（）{
客户端客户端= ClientBuilder.newBuilder（）
 .register（MultiPartFeature.class）.build（）; 
 WebTarget webTarget = client.target（TARGET_URL）; 
 MultiPart multiPart = new MultiPart（）; 
 
 FileDataBodyPart fileDataBodyPart = new FileDataBodyPart（file，
 new File（C：/Users/Nicklas2751/Desktop/test.txt），MediaType.APPLICATION_OCTET_STREAM_TYPE）; 
 multiPart.bodyPart（fileDataBodyPart）; 
 
响应响应= webTarget.request（
 MediaType.MULTIPART_FORM_DATA）.post（
 Entity.entity（multiPart，multiPart.getMediaType（）））; 
 
 System.out.println（response.getStatus（）++ response.getStatusInfo（）++ response）; 
 
 
 public static void main（String [] args）{
 new Slimclient（）; 
 
 $ / code> 

服务器代码运行没有任何问题，但是当我运行客户端时，以下错误：



  415不受支持的媒体类型InboundJaxrsResponse {ClientResponse {method = POST，uri = http：// localhost：49158 / rest / service / upload，status = 415，reason = Unsupported Media Type}} 
  

一个很好的教程泽西2和multipart文件上传，但我只能找到教程和示例球衣1或HTML表单作为客户端。我希望sombody能帮助我：）解决方案

我发现我的问题。我错过了设置 MultiPart 的 MediaType 和 .request（MediaType .MULTIPART_FORM_DATA）我已经将预期的 MediaType 设置为 MULTIPART_FORM_DATA 。这里是工作代码：

pre $ public class Slimclient {
private static final String TARGET_URL =http：// localhost ：49158 / REST /服务/上传;
$ b公共Slimclient（）{
客户端客户端= ClientBuilder.newBuilder（）
.register（MultiPartFeature.class）.build（）;
WebTarget webTarget = client.target（TARGET_URL）;
MultiPart multiPart = new MultiPart（）;
multiPart.setMediaType（MediaType.MULTIPART_FORM_DATA_TYPE）;

FileDataBodyPart fileDataBodyPart = new FileDataBodyPart（file，
new File（C：/Users/Nicklas/Desktop/aab.txt），
MediaType.APPLICATION_OCTET_STREAM_TYPE）;
multiPart.bodyPart（fileDataBodyPart）;

响应响应= webTarget.request（MediaType.APPLICATION_JSON_TYPE）
.post（Entity.entity（multiPart，multiPart.getMediaType（）））;

System.out.println（response.getStatus（）+
+ response.getStatusInfo（）++ response）;


public static void main（String [] args）{
new Slimclient（）;
}
}


I want to write a simple jersey 2 client to upload a file. I'm using Jersey 2.10.1 and wrote following server code:

@POST
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces(MediaType.APPLICATION_JSON)
public Response uploadFile(
        @FormDataParam("file") InputStream aUploadedInputStream,
        @FormDataParam("file") FormDataContentDisposition aFileDetail) {

    UploadedFile uploadedFile = new UploadedFile();
    uploadedFile.setOriginalFileName(aFileDetail.getFileName());
    uploadedFile.setFileSize(aFileDetail.getSize());
    saveToFile(aUploadedInputStream, aFileDetail.getType(), uploadedFile);
    databaseHelper.saveInDatabase(uploadedFile);

    return Response.status(200).build();
}

("UploadedFile" is an custom class to save the information of the file in a database)

And this is my client code:

private static final String TARGET_URL = "http://localhost:49158/rest/service/upload";

public Slimclient() {
    Client client = ClientBuilder.newBuilder()
            .register(MultiPartFeature.class).build();
    WebTarget webTarget = client.target(TARGET_URL);
    MultiPart multiPart = new MultiPart();

    FileDataBodyPart fileDataBodyPart = new FileDataBodyPart("file",
            new File("C:/Users/Nicklas2751/Desktop/test.txt"), MediaType.APPLICATION_OCTET_STREAM_TYPE);
    multiPart.bodyPart(fileDataBodyPart);

    Response response = webTarget.request(
            MediaType.MULTIPART_FORM_DATA).post(
            Entity.entity(multiPart, multiPart.getMediaType()));

    System.out.println(response.getStatus()+" "+response.getStatusInfo()+" "+response);
}

public static void main(String[] args) {
    new Slimclient();
}

The server code runs without any problems but when i run the client i get the following error:

415 Unsupported Media Type InboundJaxrsResponse{ClientResponse{method=POST, uri=http://localhost:49158/rest/service/upload, status=415, reason=Unsupported Media Type}}

I searched the web for a good tutorial for jersey 2 and multipart fileupload but i can only find tutorials and examples for jersey 1 or with an HTML-Form as "Client". I hope sombody can help me :)

解决方案

I've found my problem. I've missed to set the MediaType of the MultiPart and with the .request(MediaType.MULTIPART_FORM_DATA) I've set the expected MediaType of the response to MULTIPART_FORM_DATA. Here is the working code:

public class Slimclient {
    private static final String TARGET_URL = "http://localhost:49158/rest/service/upload";

    public Slimclient() {
        Client client = ClientBuilder.newBuilder()
            .register(MultiPartFeature.class).build();
        WebTarget webTarget = client.target(TARGET_URL);
        MultiPart multiPart = new MultiPart();
        multiPart.setMediaType(MediaType.MULTIPART_FORM_DATA_TYPE);

        FileDataBodyPart fileDataBodyPart = new FileDataBodyPart("file",
            new File("C:/Users/Nicklas/Desktop/aab.txt"),
            MediaType.APPLICATION_OCTET_STREAM_TYPE);
        multiPart.bodyPart(fileDataBodyPart);

        Response response = webTarget.request(MediaType.APPLICATION_JSON_TYPE)
            .post(Entity.entity(multiPart, multiPart.getMediaType()));

        System.out.println(response.getStatus() + " "
            + response.getStatusInfo() + " " + response);
    }

    public static void main(String[] args) {
        new Slimclient();
    }
}

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