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import net.sf.json.JSONObject; import org.apache.commons.collections4.map.HashedMap; import org.apache.commons.io.IOUtils; import org.apache.http.HttpEntity; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; public class HttpUtil {
  /**      * 获取接口返回值      * @param url      * @return      * @see [类、类#方法、类#成员]      */     public static JSONObject getApiData(String url, List
   
     paramList)     {
          //这里开始用于httpclient3.1升级到4.5修改，如果有问题 将下面原来的实现方式还原         JSONObject result = new JSONObject();         CloseableHttpClient httpClient = null;         CloseableHttpResponse response = null;         HttpEntity entity = null;         String responseContent = null;         int code = -1;         RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(10 * 1000).build();         //创建请求         HttpPost httpPost = new HttpPost(url);         httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");//设置请求头         try         {
              httpPost.setEntity(new UrlEncodedFormEntity(paramList, "utf-8"));//设置请求参数             httpPost.setConfig(requestConfig);//设置超时时间             httpPost.releaseConnection();//这里应该是让连接可以重用             // 创建默认的httpClient实例.              httpClient = HttpClients.createDefault();             // 发送请求开始时间             long starttime = System.currentTimeMillis();             // 执行请求              response = httpClient.execute(httpPost);             // 发送请求结束时间             long endtime = System.currentTimeMillis();             entity = response.getEntity();             // 获取请求返回的状态码             code = response.getStatusLine().getStatusCode();             responseContent = EntityUtils.toString(entity, "UTF-8");             result = JSONObject.fromObject(responseContent);         }         catch (UnsupportedEncodingException e)         {
              LOG.error("Order find UnsupportedEncodingException error...");         }         catch (ClientProtocolException e)         {
              LOG.error("Order find ClientProtocolException error...");         }         catch (IOException e)         {
              LOG.error("Order find IOException error...");         }         finally         {
              try             {
                  if (response != null)                 {
                      response.close();                 }             }             catch (IOException e)             {
                  LOG.error("response close error " + e.getMessage());             }             try             {
                  if (null != httpClient)                 {
                      httpClient.close();                 }             }             catch (IOException e)             {
                  LOG.error("httpClient close error " + e.getMessage());             }         }         return result;     } }
   

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