使用jetty 自带的http client！

最新推荐文章于 2024-05-14 14:15:13 发布

最新推荐文章于 2024-05-14 14:15:13 发布 · 300 阅读

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#Exchange #Apache #Socket #Go #UP

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本文介绍了Jetty HttpClient的使用方法，包括异步和同步处理方式，以及如何设置代理网关。Jetty HttpClient提供了灵活的事件触发处理机制，使得开发者能够轻松实现HTTP请求。

一般情况下我们需要使用HttpClient时可供选择的技术有：
1、HttpURLConnection
2、Apache HttpClient
其他的除了写Socket 我都没有用过了。

偶然的机会发现Jetty 里面也自带了一个HttpClient，并且支持事件触发的处理方式。


HttpClient client = new HttpClient();
client.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
try
{
  client.start();
}
catch (Exception e)
{
  throw new ServletException(e);
}

// create the exchange object, which lets you define where you want to go
// and what you want to do once you get a response
ContentExchange exchange = new ContentExchange()
{
  // define the callback method to process the response when you get it back
  protected void onResponseComplete() throws IOException
  {
    super.onResponseComplete();
    String responseContent = this.getResponseContent();

    // do something with the response content
    ...
  }
};

exchange.setMethod("GET");
exchange.setURL("http://www.example.com/");

// start the exchange
client.send(exchange);

还可以使用同步的处理方式：


public static void main(String[] args)
        {
		HttpClient httpClient = new HttpClient();
                //set up httpClient
                httpClient.start();
		ContentExchange contentExchange = new ContentExchange();
                httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
		contentExchange.setURL("http://slashdot.org");
                httpClient.send();
                contentExchange.waitForDone();
		System.err.println("Response status: "+contentExchange.getResponseStatus());
	}

还可以方便的设置Proxy网关：


client.setProxy(new Address("proxy_address",proxy_port));
client.setProxyAuthentication(new ProxyAuthorization("user","password"));

jetty http client 感觉不错，比Apache HttpClient更加易用、小巧！