// прочитать весь json в строку
  private static String readAll() throws IOException {
    StringBuilder data = new StringBuilder();
    try {
      HttpURLConnection con = (HttpURLConnection) ((new URL(PRODUCT_URL).openConnection()));
      con.setRequestMethod("GET");

      con.setDoInput(true);
      String s;
      try (BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()))) {
        while ((s = in.readLine()) != null) {
          data.append(s);
        }
      }
    } catch (MalformedURLException e) {
      e.printStackTrace();
      throw new MalformedURLException("Url is not valid");
    } catch (ProtocolException e) {
      e.printStackTrace();
      throw new ProtocolException("No such protocol, it must be POST,GET,PATCH,DELETE etc.");
    } catch (IOException e) {
      e.printStackTrace();
      throw new IOException("cannot read from  server");
    }
    return data.toString();
  }
 @Test
 public void testGetInvalidJsonTypedParameter() throws Exception {
   request.setParameter("anykey", "{name: 'Bob");
   int code = 0;
   try {
     request.getTypedParameter("anykey", InputData.class);
   } catch (ProtocolException e) {
     code = e.getCode();
   }
   assertEquals(HttpServletResponse.SC_BAD_REQUEST, code);
 }
  // добавить продукт в базу json server
  public static void add(ProductREST product) throws NotValidProductException, IOException {
    try {
      check(product); // рповеряем продукт
      // connection к серверу
      HttpURLConnection con = (HttpURLConnection) ((new URL(PRODUCT_URL).openConnection()));
      con.setRequestMethod("POST"); // метод post для добавления

      // генерируем запрос
      StringBuilder urlParameters = new StringBuilder();
      urlParameters
          .append("name=")
          .append(URLEncoder.encode(product.getName(), "UTF8"))
          .append("&");
      urlParameters.append("price=").append(product.getPrice()).append("&");
      urlParameters.append("weight=").append(product.getWeight()).append("&");
      urlParameters
          .append("manufacturer=")
          .append(product.getManufacturer().getCountry())
          .append("&");
      urlParameters.append("category=").append(URLEncoder.encode(product.getCategory(), "UTF8"));

      con.setDoOutput(true); // разрешаем отправку данных
      // отправляем
      try (DataOutputStream out = new DataOutputStream(con.getOutputStream())) {
        out.writeBytes(urlParameters.toString());
      }
      // код ответа
      int responseCode = con.getResponseCode();
      System.out.println("\nSending 'POST' request to URL : " + PRODUCT_URL);
      System.out.println("Response Code : " + responseCode);

    } catch (NotValidProductException e) {
      e.printStackTrace();
      throw e;
    } catch (UnsupportedEncodingException e) {
      e.printStackTrace();
      throw new UnsupportedEncodingException("cannot recognize encoding");
    } catch (ProtocolException e) {
      e.printStackTrace();
      throw new ProtocolException("No such protocol, protocol must be POST,DELETE,PATCH,GET etc.");
    } catch (MalformedURLException e) {
      e.printStackTrace();
      throw new MalformedURLException("Url is not valid");
    } catch (IOException e) {
      e.printStackTrace();
      throw new IOException("cannot write information to server");
    }
  }
  private boolean processNext(RapidoidConnection conn) {
    int pos = conn.input().position();
    int limit = conn.input().limit();

    try {
      protocol.process(conn);
      return true;
    } catch (IncompleteReadException e) {
      // input not ready, so recover
      conn.input().position(pos);
      conn.input().limit(limit);
      // FIXME recover output position
    } catch (ProtocolException e) {
      conn.write(U.or(e.getMessage(), "Protocol error!"));
      conn.error();
      conn.close(true);
    } catch (Throwable e) {
      U.error("Failed to process message!", e);
      conn.close(true);
    }

    return false;
  }
Exemple #5
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  public static String httpPost(String urlAddress, String[] params) {
    URL url = null;
    HttpURLConnection conn = null;
    BufferedReader in = null;
    StringBuffer sb = new StringBuffer();

    try {
      url = new URL(urlAddress);
      conn = (HttpURLConnection) url.openConnection(); // 建立连接
      // 设置通用的请求属性
      /*
       * conn.setRequestProperty("user-agent",
       * "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
       */
      conn.setRequestProperty("User-Agent", "Mozilla/5.0 ( compatible ) ");
      conn.setRequestProperty("Accept", "*/*");
      conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

      conn.setUseCaches(false);
      conn.setDoInput(true);
      // conn.setConnectTimeout(5 * 1000);
      conn.setDoOutput(true);
      conn.setRequestMethod("POST");
      String paramsTemp = "";
      for (String param : params) {
        if (param != null && !"".equals(param)) {
          if (params.length > 1) {
            paramsTemp += "&" + param;
          } else if (params.length == 1) {
            paramsTemp = params[0];
          }
        }
      }

      byte[] b = paramsTemp.getBytes();
      System.out.println("btye length:" + b.length);
      // conn.setRequestProperty("Content-Length",
      // String.valueOf(b.length));
      conn.getOutputStream().write(b, 0, b.length);
      conn.getOutputStream().flush();
      conn.getOutputStream().close();
      int count = conn.getResponseCode();
      if (200 == count) {
        in = new BufferedReader(new InputStreamReader(conn.getInputStream())); // 发送请求
      } else {
        System.out.println("错误类型:" + count);
        return "server no start-up";
      }

      while (true) {
        String line = in.readLine();
        if (line == null) {
          break;
        } else {
          sb.append(line);
        }
      }
    } catch (MalformedURLException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (ProtocolException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IOException e) {
      System.out.println("error ioexception:" + e.getMessage());
      e.printStackTrace();
      return "server no start-up";
    } finally {
      try {
        if (in != null) {
          in.close();
        }
        if (conn != null) {
          conn.disconnect();
        }
      } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }
    }

    return sb.toString();
  }