http/get http/post方法

get

public static String getRequest(String serviceUrl,Map<String, Object> parameters) throws Exception {
   RequestBuilder builder = RequestBuilder.get(serviceUrl);
   CloseableHttpClient httpClient = HttpClientBuilder.create().setDefaultRequestConfig(getRequestConfig(2000, 2000)).build();
   builder.addHeader("content-type",
         "application/json;charset=utf-8");
   for (Map.Entry<String, Object> entry : parameters.entrySet()) {
      builder.addParameter(entry.getKey(), entry.getValue().toString());
   }
   try {
      CloseableHttpResponse execute = httpClient.execute(builder.build());
      return EntityUtils.toString(execute.getEntity(), StandardCharsets.UTF_8);

   } catch (Exception e) {
      e.printStackTrace();
   }

   return null;
}

private static RequestConfig getRequestConfig(int connectTimeout, int readTimeout) {
   return RequestConfig.custom()
         .setConnectTimeout(connectTimeout)
         .setConnectionRequestTimeout(connectTimeout)
         .setSocketTimeout(readTimeout)
         .build();
}

post

public static String restPostUtil(String url, String json) throws Exception {
   HttpClient client = new HttpClient();
   PostMethod method = null;
   try {
      method = new PostMethod(url);
      method.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");
      if (!UmString.isBlank(json)) {
         RequestEntity requestEntity = new StringRequestEntity(json, "application/json", "UTF-8");
         method.setRequestEntity(requestEntity);
      }
      int ststusCode = client.executeMethod(method);
      if (ststusCode == HttpStatus.SC_OK) {
         String responseHTML = method.getResponseBodyAsString();
         return responseHTML;
      } else if (ststusCode == HttpStatus.SC_NO_CONTENT) {
         return "";
      }
      throw new Exception("method failed:" + method.getStatusLine());
   } catch (Exception e) {
      throw e;
   } finally {
      if (method != null) {
         method.releaseConnection();
      }
   }
}