HttpClient4.3.1

1.创建HttpClient客户端

HttpClientBuilder clientbuilder = HttpClientBuilder.create();CloseableHttpClient httpclient = clientbuilder.build();
2.发送Get请求
String url = "http://www.baidu.com";HttpGet httpGet = new HttpGet(url);HttPResponse httpResponse = httpclient.execute(httpGet);3.设置超时时间
RequestConfig requestconfig = RequestConfig.custom().setConnectTimeout(5000).setConnectionRequestTimeout(5000).setSocketTimeout(5000).build();httpGet.setConfig(requestconfig);4.获取响应信息实体、响应状态、响应信息
HttpEntity entity = httpResponse.getEntity();StatusLine status = httpResponse.getStatusLine();if(entity!=null){	String data = EntityUtils.toString(entity);}简单的小例子：
	public static void main(String[] args) throws ClientProtocolException, IOException {				//创建HttpClient客户端		HttpClientBuilder clientbuilder = HttpClientBuilder.create();		CloseableHttpClient httpclient = clientbuilder.build();				String url = "http://www.baidu.com";		HttpGet httpGet = new HttpGet(url);				//设置超时时间		RequestConfig requestconfig = RequestConfig.custom().setConnectTimeout(5000)				.setConnectionRequestTimeout(5000).setSocketTimeout(5000).build();		httpGet.setConfig(requestconfig);				try{			//发送get请求			HttpResponse httpResponse = httpclient.execute(httpGet);						//获取响应消息实体			HttpEntity entity = httpResponse.getEntity();						//获取响应状态			StatusLine status = httpResponse.getStatusLine();						if(entity!=null){				//获取响应信息				String data = EntityUtils.toString(entity);			}		}catch(IOException e){			e.printStackTrace();		}finally{			try{			httpclient.close();			}catch(IOException e){				e.printStackTrace();			}		}	}
HttpClient4.3.1 API文档：http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/overview-summary.htmlHttpClient4.3.1相关jar包：http://pan.baidu.com/s/1qXN4Q6K