HttpClient发送Post请求，get请求

// 创建默认的httpclient实例
        CloseableHttpClient httpclient = getHttpClient();
        CloseableHttpResponse response = null;
        // 创建httpPost
        HttpPost httpPost = new HttpPost("url地址");
        httpPost.setHeader(HTTP.CONTENT_TYPE, "application/json; charset=utf-8");
        try {
            StringEntity param = new StringEntity(params, ContentType.APPLICATION_JSON);
            httpPost.setEntity(param);
            response = httpclient.execute(httpPost);
            HttpEntity entity = response.getEntity();
            if(entity != null){
                InputStream is = entity.getContent();

            }

        } catch (Exception e) {
            LOG.error("sendPostRequest error:", e);
        } finally {
            try {
                //关闭连接，释放资源
                response.close();
                httpclient.close();
            } catch (Exception e) {
                LOG.error("HttpClient close error:", e);
            }
        }
       

发送Get请求

CloseableHttpClient httpclient = getHttpClient();
        CloseableHttpResponse response = null;
        HttpGet httpget = new HttpGet("url地址");
        try {
            response = httpclient.execute(httpget);
            HttpEntity entity = response.getEntity();
            if(entity != null){
                InputStream is = entity.getContent();
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            try {
                //关闭连接，释放资源
                response.close();
                closeHttpClient(httpclient);
            } catch (Exception e) {
                LOG.error("HttpClient close error:", e);
            }
        }

借用某位大神的代码，只为日后方便查阅，请勿介意。