如何在multipartentitybuilder中从addBinaryBody获取内容

Question

我正在使用MultipartEntityBuilder发送多部分请求。我无法在服务器上检索addBinaryBody的内容。我正在服务器上使用Spring Rest Web服务检索内容。

            HttpClient client = HttpClientBuilder.create().build();
    HttpPost post = new HttpPost("http://localhost:8080/PAautomation/upload");
    InputStream fis = new FileInputStream(new File("abc.txt"));
    MultipartEntityBuilder builder = MultipartEntityBuilder.create();
    builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

    builder.addBinaryBody("upfile", fis,    ContentType.APPLICATION_OCTET_STREAM, "abc.txt");
    //
    HttpEntity entity = builder.build();
    post.setEntity(entity);
    HttpResponse response = client.execute(post);