Question

我已经实现了一种通过发布到Jersey JAX-RS REST后端来上传音频文件的方法。这很好用。但是，当我尝试实现DELETE音频文件方法时，它会给我以下错误：

HTTP 405 Method Not Allowed

我不能为我的生活看到什么是错的 - 我认为这可能是我无视的微不足道的事情，因为我之前做了很多DELETES并且他们已经工作了。我也试图实现一个简单的虚拟GET方法，并且也给出了同样的错误。

使用名为ng-file-upload的angularjs指令完成文件上传。使用以下网址成功上传：

file.upload = Upload.upload({
    url: 'http://localhost:8080/pododdle/webapi/auctions/' + bid.auction_id + '/uploads?category_id=' + bid.category_id,
    data: {file: file}
});

上传的示例网址为：

http://localhost:8080/pododdle/webapi/auctions/1/uploads?category_id=2

我尝试使用POSTMAN来使用DELETE，因为我的前端代码是错误的。提供的网址是：

http://localhost:8080/pododdle/webapi/auctions/1/uploads

以下是整个“上传”资源的代码，包括DELETE和POST。正如您所看到的，DELETE只是一种虚拟方法，没有真正的工作。此外，上传资源是“拍卖”资源的子资源。

@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public class UploadResource {

    private static final Logger log = Logger.getLogger(UploadResource.class);
    AuctionService auction_service = new AuctionService();

    @DELETE
    public Response deleteAudio(@PathParam("auction_id") int auction_id) {
        System.out.println("inside deleteAudio");
        return Response.ok().build();
    }

    //this uploads the audio file, stores it to disk, and then saves the file-path to the auction
    @POST
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    @Produces("text/html")
    public Response uploadAudio(@PathParam("auction_id") int auction_id, @QueryParam("category_id") int category_id,
        @FormDataParam("file") InputStream fileInputString, @FormDataParam("file") FormDataContentDisposition fileInputDetails) {

        //We need to get the value of the audio root directory
        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
        Properties properties = new Properties();
        try {
            properties.load(classLoader.getResourceAsStream("pododdle.properties"));
        } catch (IOException e) {
            log.error("Error getting the audio root directory location when uploading the audio: " + e.getMessage());
            e.printStackTrace();
        }
        String auctionAudio = "audio/category/" + category_id + "/auction/" + auction_id + "/" + fileInputDetails.getFileName();
        String audioFileName = properties.getProperty("audioRootDirectory") + auctionAudio;

        NumberFormat myFormat = NumberFormat.getInstance();
        myFormat.setGroupingUsed(true);

        try {
            File audioFile = new File(audioFileName);
            File parent = audioFile.getParentFile();
            if(!parent.exists() && !parent.mkdirs()) {
                return Response.status(501).entity("Error creating directory when uploading the audio to the server. Please try again in a few moments").build();
            }
            OutputStream out = new FileOutputStream(audioFile, false);
            byte[] buffer = new byte[1024];
            int bytes = 0;
            long file_size = 0;

            while((bytes = fileInputString.read(buffer)) != -1) {
                out.write(buffer, 0, bytes);
                file_size += bytes;
            }
            out.flush();
            out.close();

            log.info(String.format("Uploading Audio file for category: " + category_id + ", fileSize: %s", myFormat.format(file_size)));
        } catch (IOException ioe) {
            System.out.println("error uploading audio file to server: " + ioe.toString());
            return Response.status(501).entity("Error uploading the audio to the server. Please try again in a few moments").build();
        }

        //now updating the auction with the audio path in the database and return the updated auction
        return Response.ok(auction_service.updateAuction(auction_id, auctionAudio).toString()).build();
    }

}

拍卖资源如下所示：

@Path("/auctions")
public class AuctionResource {

    //creating sub-resource for auction bids
    @Path("/{auction_id}/uploads")
    public UploadResource getUploadResource()
    {
        return new UploadResource();
    }
}

Answer 1

看起来这个错误是由于项目没有正确构建造成的。在检查构建路径时，似乎有两个jar文件神秘地丢失了！他们是：

jersey-media-multipart-2.21.1.jar
mimepull-1.9.3.jar

我不知道jar文件是如何从glassfish服务器的/ lib目录中删除的，也许我不应该喝那瓶额外的威士忌。一旦他们被重新加入，一切都突然变得笨拙。有点困惑的错误 - 如果罐子不可用，我会认为它会产生编译错误。无论如何，由于另一个恼人的错误而损失了5天。

JAX-RS GET和DELETE给出405错误

1 个答案: