在傳送http請求的時候關鍵在於request的封裝

1、首先要先將上傳的檔案封裝到HttpPostRequestEncoder中

HttpRequest request1 = new DefaultFullHttpRequest(
        HttpVersion.HTTP_1_1, HttpMethod.POST, url);
HttpDataFactory factory = new DefaultHttpDataFactory(DefaultHttpDataFactory.MINSIZE);
// This encoder will help to encode Request for a FORM as POST.
 
HttpPostRequestEncoder bodyRequestEncoder = new HttpPostRequestEncoder(factory, request1, false);bodyRequestEncoder.addBodyFileUpload("file", file, "application/x-zip-compressed", false);

List<InterfaceHttpData> bodylist = bodyRequestEncoder.getBodyListAttributes();
 

HttpRequest request = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST, url);
request.headers().set(HttpHeaderNames.CONNECTION,HttpHeaderValues.CLOSE
 
);
HttpPostRequestEncoder bodyRequestEncoder2 = new HttpPostRequestEncoder(factory, request, true);
bodyRequestEncoder2.setBodyHttpDatas(bodylist);
bodyRequestEncoder2.finalizeRequest();