Java HttpAsyncPost设置标题

我目前正在使用Apache的HttpComponents，包括HttpAsyncClient测试版，但我想知道。如何设置HttpAsyncPost的标题

我目前有：

HttpAsyncPost asyncRequest = new HttpAsyncPost(channel, "id=15846");

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但是如何设置此请求的头？

如果您不介意升级到最新快照，可以使用

httpasynchmethods\create

方法从任意

HttpUriRequest

实例创建

httpasynchrequestproducer

或者，您可以重写

HttpAsyncPost#createRequest（）

方法，并向超类返回的

HttpEntityEnclosingRequest

实例添加自定义头

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希望这有帮助。

我的第一个解决方案是使用cast to

BasicAsyncRequestProducer

。我不能依赖方法

generateRequest（）

，它基本上是getter，但它在将来会改变，正如方法的名称所示。所以我坚持回答

根据答案使用我自己的

createPost

方法：

BasicAsyncRequestProducer request = (BasicAsyncRequestProducer) HttpAsyncMethods.createPost("http://some/uri", "some payload", ContentType.DEFAULT_TEXT);
request.generateRequest().setHeader("header name", "header value");

createPost("http://some/uri", "some payload", ContentType.DEFAULT_TEXT, new BasicHeader("header name", "header value")); 

static class RequestProducerImpl extends BasicAsyncRequestProducer {

    protected RequestProducerImpl(
        final HttpHost target,
        final HttpEntityEnclosingRequest request,
        final HttpAsyncContentProducer producer) {
        super(target, request, producer);
    }
}

public static HttpAsyncRequestProducer createPost(
    final String requestURI,
    final String content,
    final ContentType contentType, Header... headers) throws UnsupportedEncodingException {
    final HttpPost httppost = new HttpPost(requestURI);
    final NStringEntity entity = new NStringEntity(content, contentType);
    httppost.setEntity(entity);
    httppost.setHeaders(headers);
    final HttpHost target = URIUtils.extractHost(URI.create(requestURI));
    return new RequestProducerImpl(target, httppost, entity);
}