vertx如何接收-data-binary形式上传的文件

Question

使用如下的方式上传文件给某个服务：
curl -H 'X-SWR-Override:1' https://ip:port/repo/v2/file_paths/kafka.tar.gz --data-binary @kafka.tar.gz -X PUT

服务端用vertx应该如何实现？

下面是搜了资料说可以多次调用下面的语句，但是具体怎么实现呢？

这是因为body可能会非常大 (例如一个文件上传)，我们通常不不会吧缓冲的整个body放在内
存中交给你，因为那将导致服务器内存用尽。
若要接收body，您可以使用handler请求，调用后，会有请求body到达。

request.handler(buffer -> {
System.out.println("I have received a chunk of the body of length " + buffer.length(
));
});
传递到handler的对象是一个Buffer，该handler可以调用多次，当数据到达时从网络，根据
body的大小。

Answer 1

Handling file uploads
Body handler is also used to handle multi-part file uploads.

If a body handler is on a matching route for the request, any file uploads will be automatically streamed to the uploads directory, which is file-uploads by default.

Each file will be given an automatically generated file name, and the file uploads will be available on the routing context with fileUploads.

Here’s an example:

router.route().handler(BodyHandler.create());

router.post("/some/path/uploads").handler(routingContext -> {

Set<FileUpload> uploads = routingContext.fileUploads();
// Do something with uploads....

});
Each file upload is described by a FileUpload instance, which allows various properties such as the name, file-name and size to be accessed.