public static CloseableHttpResponse getResponse(String uri){
    	HttpGet httpGet = new HttpGet(uri);
    	CloseableHttpResponse httpResponse = null;
    	
		try {
			httpResponse = httpClient.execute(httpGet);
		} catch (ClientProtocolException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			if(httpGet!=null){
				//释放链接
				httpGet.releaseConnection();
			}
		}
        return httpResponse;
    }