Question

我正在尝试使用零复制帖子将图像文件上传到网络存储服务器。

实现来自Apache网站中的example。我已经从示例中更改了一些部分，因此不会将响应下载到文件中。

这是我更改过的源代码。

private void upload() throws Exception {

    CloseableHttpAsyncClient httpclient = HttpAsyncClients.createDefault();
    try {
        httpclient.start();
        File upload = new File("C:\\Users\\Jee\\profile.png");
        ZeroCopyPost httpost = new ZeroCopyPost(requestURL+upload.getName(), upload,
                ContentType.create("image/png"));
        HttpAsyncResponseConsumer consumer = new BasicAsyncResponseConsumer();
        Future<File> future = httpclient.execute(httpost, consumer, null);
        File result = future.get();
        System.out.println("Response file length: " + result.length());
        System.out.println("Shutting down");
    } finally {
        httpclient.close();
    }
    System.out.println("Done");
}

我需要为此POST请求添加标头。怎么做？

Answer 1

ZeroCopyPost zeroCopyPost = new ZeroCopyPost(
        URI.create("/"),
        new File("stuff"),
        ContentType.DEFAULT_BINARY) {

    @Override
    protected HttpEntityEnclosingRequest createRequest(
            final URI requestURI, final HttpEntity entity) {
        HttpEntityEnclosingRequest request = super.createRequest(requestURI, entity);
        request.setHeader("my-header", "whatever");
        return request;
    }
};

重写ZeroCopyPost＃createRequest是推荐的方法。根据@Robert Rowntree建议覆盖#generateRequest也会有效。

如何将标头添加到ZeroCopyPost

1 个答案: